Company lists · Data refreshed November 2026
Top 25 Security testing and penetration testing companies worldwide
RevenueBase identified 8,221 company matches for security testing and penetration testing companies worldwide as of November 2026 and tracks 99,013 professional contacts across them, including 24,381 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for security testing and penetration testing companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for security testing and penetration testing companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest security testing and penetration testing companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,149 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 1,346 contacts → | ||||
Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 1,324 contacts → | ||||
Exact match “EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 782 contacts → | ||||
Exact match “Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 755 contacts → | ||||
Exact match “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 733 contacts → | ||||
Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 693 contacts → | ||||
Exact match “The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 620 contacts → | ||||
Exact match “YesWeHack is a leading Offensive Security and Exposure Management platform delivering integrated, API-based solutions to secure organisations’ growing attack surfaces.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 608 contacts → | ||||
Exact match “NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern, continuous pentesting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 558 contacts → | ||||
Exact match “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 553 contacts → | ||||
Exact match “Protection is Paramount!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 426 contacts → | ||||
Exact match “At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 413 contacts → | ||||
Exact match “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 411 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 392 contacts → | ||||
Exact match “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 385 contacts → | ||||
Exact match “eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 379 contacts → | ||||
Exact match “Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 359 contacts → | ||||
Exact match “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 357 contacts → | ||||
Exact match “Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 355 contacts → | ||||
Exact match “T A L A K U N C H I Networks Pvt.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 346 contacts → | ||||
Exact match “TechDefence Labs (TechD Cybersecurity Limited) Award-winning | Innovative | Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 341 contacts → | ||||
Exact match “NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 335 contacts → | ||||
Exact match “Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 317 contacts → | ||||
Exact match “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 288 contacts → | ||||
Exact match “PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “security testing and penetration testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 8,221 security testing and penetration testing companies worldwide
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Security testing and penetration testing companies worldwide at a glance
As of Nov 5, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for security testing and penetration testing companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “security testing and penetration testing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 24,381 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Security testing and penetration testing companies by location
61 lists · largest firstEvery Security testing and penetration testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security testing and penetration testing companies based in the United States1,596
- Security testing and penetration testing companies based in India990
- Security testing and penetration testing companies based in the United Kingdom546
- Security testing and penetration testing companies based in France232
- Security testing and penetration testing companies based in Canada220
- Security testing and penetration testing companies based in Brazil206
- Security testing and penetration testing companies based in Australia202
- Security testing and penetration testing companies based in Germany199
- Security testing and penetration testing companies based in the Netherlands165
- Security testing and penetration testing companies based in the United Arab Emirates117
- Security testing and penetration testing companies based in Spain112
- Security testing and penetration testing companies based in Poland95
- Security testing and penetration testing companies based in Türkiye94
- Security testing and penetration testing companies based in Italy90
- Security testing and penetration testing companies based in Israel89
- Security testing and penetration testing companies based in South Africa78
- Security testing and penetration testing companies based in Switzerland72
- Security testing and penetration testing companies based in Indonesia66
- Security testing and penetration testing companies based in Mexico65
- Security testing and penetration testing companies based in Belgium56
- Security testing and penetration testing companies based in Singapore52
- Security testing and penetration testing companies based in Chile47
- Security testing and penetration testing companies based in Colombia44
- Security testing and penetration testing companies based in Sweden43
- Security testing and penetration testing companies based in Austria42
- Security testing and penetration testing companies based in Romania38
- Security testing and penetration testing companies based in Czechia37
- Security testing and penetration testing companies based in Saudi Arabia37
- Security testing and penetration testing companies based in Ukraine36
- Security testing and penetration testing companies based in Estonia34
- Security testing and penetration testing companies based in New Zealand34
- Security testing and penetration testing companies based in Ireland33
- Security testing and penetration testing companies based in Malaysia26
Cities
- Security testing and penetration testing companies based in London, United Kingdom209
- Security testing and penetration testing companies based in Bangalore, India113
- Security testing and penetration testing companies based in Pune, India86
- Security testing and penetration testing companies based in Sao Paulo, Brazil84
- Security testing and penetration testing companies based in Hyderabad, India78
- Security testing and penetration testing companies based in Paris, France74
- Security testing and penetration testing companies based in Dubai, United Arab Emirates69
- Security testing and penetration testing companies based in New York, United States64
- Security testing and penetration testing companies based in Toronto, Canada58
- Security testing and penetration testing companies based in Mumbai, India53
- Security testing and penetration testing companies based in Sydney, Australia52
- Security testing and penetration testing companies based in Melbourne, Australia49
- Security testing and penetration testing companies based in Chennai, India48
- Security testing and penetration testing companies based in Singapore, Singapore47
- Security testing and penetration testing companies based in Ahmedabad, India44
- Security testing and penetration testing companies based in Noida, India43
- Security testing and penetration testing companies based in San Francisco, United States40
- Security testing and penetration testing companies based in Delhi, India36
- Security testing and penetration testing companies based in Atlanta, United States33
- Security testing and penetration testing companies based in Istanbul, Türkiye33
- Security testing and penetration testing companies based in Austin, United States31
- Security testing and penetration testing companies based in Warsaw, Poland31
- Security testing and penetration testing companies based in Chicago, United States30
- Security testing and penetration testing companies based in Tallinn, Estonia30
- Security testing and penetration testing companies based in Manchester, United Kingdom29
- Security testing and penetration testing companies based in Dallas, United States28
- Security testing and penetration testing companies based in Montreal, Canada28
- Security testing and penetration testing companies based in Berlin, Germany25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “security testing and penetration testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security testing and penetration testing companies are there worldwide?
RevenueBase identified 8,221 company matches for security testing and penetration testing companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Private Sector tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most security testing and penetration testing companies?
The United States leads with 1,596 companies, followed by India (990) and the United Kingdom (546). Every security testing and penetration testing companies list by country and city is linked on this page.
Which city has the most security testing and penetration testing companies?
London leads with 212 company records, followed by Bangalore (113) and Pune (86).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 24,381 professional contacts with verified work emails tracked across these 8,221 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 security testing and penetration testing companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 8,221 matching company records for security testing and penetration testing companies worldwide, with 99,013 tracked contacts and 24,381 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security testing and penetration testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Private Sectorlockervault.comHQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 13,149 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 |  Guidepoint Securityguidepointsecurity.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,346 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Ec-Councileccouncil.orgHQ: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | Albuquerque, NM, United States | 1,001-5,000 | Exact match | 1,324 contacts → |
“EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  COBRAaudit.amazingsupport.co.ukHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 782 contacts → |
“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  SISAsisa.aiHQ: Bangalore, IndiaReported employees: 1,001-5,000 | Bangalore, India | 1,001-5,000 | Exact match | 755 contacts → |
“SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Trustwave, A Levelblue Companylevelblue.comHQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 733 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Synack RED Teamsynack.comHQ: Austin, TX, United StatesReported employees: Not recorded | Austin, TX, United States | Not recorded | Exact match | 693 contacts → |
“The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Yeswehackyeswehack.comHQ: Paris, FranceReported employees: Not recorded | Paris, France | Not recorded | Exact match | 620 contacts → |
“YesWeHack is a leading Offensive Security and Exposure Management platform delivering integrated, API-based solutions to secure organisations’ growing attack surfaces.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Netspinetspi.comHQ: Minneapolis, MN, United StatesReported employees: 501-1,000 | Minneapolis, MN, United States | 501-1,000 | Exact match | 608 contacts → |
“NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern, continuous pentesting.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  own.securityown.securityHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 558 contacts → |
“Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Paramount Computer Systemsparamountassure.comHQ: Dubai, United Arab EmiratesReported employees: 201-500 | Dubai, United Arab Emirates | 201-500 | Exact match | 553 contacts → |
“Protection is Paramount!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Resillionresillion.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 426 contacts → |
“At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Acpl Systemsacpl.comHQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 413 contacts → |
“ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  SK Shieldusskshieldus.comHQ: 경기도, South KoreaReported employees: 5,001-10,000 | 경기도, South Korea | 5,001-10,000 | Exact match | 411 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  G Data Cyberdefensegdata.deHQ: Bochum, GermanyReported employees: 501-1,000 | Bochum, Germany | 501-1,000 | Exact match | 392 contacts → |
“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Esec Forte Technologiesesecforte.comHQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 385 contacts → |
“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  T Security - Dachsecurity.telekom.deHQ: Bonn, GermanyReported employees: 1,001-5,000 | Bonn, Germany | 1,001-5,000 | Exact match | 379 contacts → |
“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Safewaysafewayconsultoria.comHQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 359 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Bishop FOXbishopfox.comHQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 357 contacts → |
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Talakunchi Networks PVT LTDtalakunchi.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 355 contacts → |
“T A L A K U N C H I Networks Pvt.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Techdefencetechdefencelabs.comHQ: Ahmedabad, IndiaReported employees: 201-500 | Ahmedabad, India | 201-500 | Exact match | 346 contacts → |
“TechDefence Labs (TechD Cybersecurity Limited) Award-winning | Innovative | Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Nviso Securitynviso.euHQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 341 contacts → |
“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cobaltcobalt.ioHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 335 contacts → |
“Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Prescient Securityprescientsecurity.comHQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 317 contacts → |
“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Portswiggerportswigger.netHQ: Knutsford, United KingdomReported employees: 51-200 | Knutsford, United Kingdom | 51-200 | Exact match | 288 contacts → |
“PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,221 company matches
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Security testing and penetration testing companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,207 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,221 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security testing and penetration testing companies by location
61 lists · largest firstEvery Security testing and penetration testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security testing and penetration testing companies based in the United States1,596
- Security testing and penetration testing companies based in India990
- Security testing and penetration testing companies based in the United Kingdom546
- Security testing and penetration testing companies based in France232
- Security testing and penetration testing companies based in Canada220
- Security testing and penetration testing companies based in Brazil206
- Security testing and penetration testing companies based in Australia202
- Security testing and penetration testing companies based in Germany199
- Security testing and penetration testing companies based in the Netherlands165
- Security testing and penetration testing companies based in the United Arab Emirates117
- Security testing and penetration testing companies based in Spain112
- Security testing and penetration testing companies based in Poland95
- Security testing and penetration testing companies based in Türkiye94
- Security testing and penetration testing companies based in Italy90
- Security testing and penetration testing companies based in Israel89
- Security testing and penetration testing companies based in South Africa78
- Security testing and penetration testing companies based in Switzerland72
- Security testing and penetration testing companies based in Indonesia66
- Security testing and penetration testing companies based in Mexico65
- Security testing and penetration testing companies based in Belgium56
- Security testing and penetration testing companies based in Singapore52
- Security testing and penetration testing companies based in Chile47
- Security testing and penetration testing companies based in Colombia44
- Security testing and penetration testing companies based in Sweden43
- Security testing and penetration testing companies based in Austria42
- Security testing and penetration testing companies based in Romania38
- Security testing and penetration testing companies based in Czechia37
- Security testing and penetration testing companies based in Saudi Arabia37
- Security testing and penetration testing companies based in Ukraine36
- Security testing and penetration testing companies based in Estonia34
- Security testing and penetration testing companies based in New Zealand34
- Security testing and penetration testing companies based in Ireland33
- Security testing and penetration testing companies based in Malaysia26
Cities
- Security testing and penetration testing companies based in London, United Kingdom209
- Security testing and penetration testing companies based in Bangalore, India113
- Security testing and penetration testing companies based in Pune, India86
- Security testing and penetration testing companies based in Sao Paulo, Brazil84
- Security testing and penetration testing companies based in Hyderabad, India78
- Security testing and penetration testing companies based in Paris, France74
- Security testing and penetration testing companies based in Dubai, United Arab Emirates69
- Security testing and penetration testing companies based in New York, United States64
- Security testing and penetration testing companies based in Toronto, Canada58
- Security testing and penetration testing companies based in Mumbai, India53
- Security testing and penetration testing companies based in Sydney, Australia52
- Security testing and penetration testing companies based in Melbourne, Australia49
- Security testing and penetration testing companies based in Chennai, India48
- Security testing and penetration testing companies based in Singapore, Singapore47
- Security testing and penetration testing companies based in Ahmedabad, India44
- Security testing and penetration testing companies based in Noida, India43
- Security testing and penetration testing companies based in San Francisco, United States40
- Security testing and penetration testing companies based in Delhi, India36
- Security testing and penetration testing companies based in Atlanta, United States33
- Security testing and penetration testing companies based in Istanbul, Türkiye33
- Security testing and penetration testing companies based in Austin, United States31
- Security testing and penetration testing companies based in Warsaw, Poland31
- Security testing and penetration testing companies based in Chicago, United States30
- Security testing and penetration testing companies based in Tallinn, Estonia30
- Security testing and penetration testing companies based in Manchester, United Kingdom29
- Security testing and penetration testing companies based in Dallas, United States28
- Security testing and penetration testing companies based in Montreal, Canada28
- Security testing and penetration testing companies based in Berlin, Germany25
Questions about this company list
What does Exact match mean for security testing and penetration testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security testing and penetration testing companies did RevenueBase find worldwide?
The saved snapshot records 8,221 matching company records, 99,013 tracked contacts and 24,381 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security testing and penetration testing companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-testing-and-penetration-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 security testing and penetration testing companies worldwide
RevenueBase records 8,221 matching company records for security testing and penetration testing companies worldwide, with 99,013 tracked contacts and 24,381 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 security testing and penetration testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Private Sectorlockervault.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 13,149 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 | Guidepoint Securityguidepointsecurity.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,346 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ec-Councileccouncil.org HQ: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | Albuquerque, NM, United States | 1,001-5,000 | Exact match | 1,324 contacts → |
“EC-Council is the creator of the globally renowned Certified Ethical Hacker (CEH) program.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | COBRAaudit.amazingsupport.co.uk HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 782 contacts → |
“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SISAsisa.ai HQ: Bangalore, IndiaReported employees: 1,001-5,000 | Bangalore, India | 1,001-5,000 | Exact match | 755 contacts → |
“SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Trustwave, A Levelblue Companylevelblue.com HQ: Chicago, IL, United StatesReported employees: 501-1,000 | Chicago, IL, United States | 501-1,000 | Exact match | 733 contacts → |
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Synack RED Teamsynack.com HQ: Austin, TX, United StatesReported employees: Not recorded | Austin, TX, United States | Not recorded | Exact match | 693 contacts → |
“The Synack Red Team is a private freelance security research team that spans 6 continents and over 80 countries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Yeswehackyeswehack.com HQ: Paris, FranceReported employees: Not recorded | Paris, France | Not recorded | Exact match | 620 contacts → |
“YesWeHack is a leading Offensive Security and Exposure Management platform delivering integrated, API-based solutions to secure organisations’ growing attack surfaces.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Netspinetspi.com HQ: Minneapolis, MN, United StatesReported employees: 501-1,000 | Minneapolis, MN, United States | 501-1,000 | Exact match | 608 contacts → |
“NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern, continuous pentesting.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | own.securityown.security HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 558 contacts → |
“Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Paramount Computer Systemsparamountassure.com HQ: Dubai, United Arab EmiratesReported employees: 201-500 | Dubai, United Arab Emirates | 201-500 | Exact match | 553 contacts → |
“Protection is Paramount!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Resillionresillion.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 426 contacts → |
“At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Acpl Systemsacpl.com HQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 413 contacts → |
“ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | SK Shieldusskshieldus.com HQ: 경기도, South KoreaReported employees: 5,001-10,000 | 경기도, South Korea | 5,001-10,000 | Exact match | 411 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | G Data Cyberdefensegdata.de HQ: Bochum, GermanyReported employees: 501-1,000 | Bochum, Germany | 501-1,000 | Exact match | 392 contacts → |
“Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Esec Forte Technologiesesecforte.com HQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 385 contacts → |
“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | T Security - Dachsecurity.telekom.de HQ: Bonn, GermanyReported employees: 1,001-5,000 | Bonn, Germany | 1,001-5,000 | Exact match | 379 contacts → |
“Wir glauben an eine sichere digitale Zukunft mit minimalen Risiken und maximalen Chancen.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Safewaysafewayconsultoria.com HQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 359 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bishop FOXbishopfox.com HQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 357 contacts → |
“Bishop Fox is recognized as the leading authority in offensive security, providing solutions ranging from continuous penetration testing, red teaming, and attack surface…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Talakunchi Networks PVT LTDtalakunchi.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 355 contacts → |
“T A L A K U N C H I Networks Pvt.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Techdefencetechdefencelabs.com HQ: Ahmedabad, IndiaReported employees: 201-500 | Ahmedabad, India | 201-500 | Exact match | 346 contacts → |
“TechDefence Labs (TechD Cybersecurity Limited) Award-winning | Innovative | Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Nviso Securitynviso.eu HQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 341 contacts → |
“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cobaltcobalt.io HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 335 contacts → |
“Cobalt is the pioneer in pentesting as a service and a leader in offensive security services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Prescient Securityprescientsecurity.com HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 317 contacts → |
“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Portswiggerportswigger.net HQ: Knutsford, United KingdomReported employees: 51-200 | Knutsford, United Kingdom | 51-200 | Exact match | 288 contacts → |
“PortSwigger is a global leader in the creation of software tools for security testing of web applications.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,221 company matches
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Security testing and penetration testing companies: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,207 records in the displayed employee bands.
14 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 8,221 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security testing and penetration testing companies by location
61 lists · largest firstEvery Security testing and penetration testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security testing and penetration testing companies based in the United States1,596
- Security testing and penetration testing companies based in India990
- Security testing and penetration testing companies based in the United Kingdom546
- Security testing and penetration testing companies based in France232
- Security testing and penetration testing companies based in Canada220
- Security testing and penetration testing companies based in Brazil206
- Security testing and penetration testing companies based in Australia202
- Security testing and penetration testing companies based in Germany199
- Security testing and penetration testing companies based in the Netherlands165
- Security testing and penetration testing companies based in the United Arab Emirates117
- Security testing and penetration testing companies based in Spain112
- Security testing and penetration testing companies based in Poland95
- Security testing and penetration testing companies based in Türkiye94
- Security testing and penetration testing companies based in Italy90
- Security testing and penetration testing companies based in Israel89
- Security testing and penetration testing companies based in South Africa78
- Security testing and penetration testing companies based in Switzerland72
- Security testing and penetration testing companies based in Indonesia66
- Security testing and penetration testing companies based in Mexico65
- Security testing and penetration testing companies based in Belgium56
- Security testing and penetration testing companies based in Singapore52
- Security testing and penetration testing companies based in Chile47
- Security testing and penetration testing companies based in Colombia44
- Security testing and penetration testing companies based in Sweden43
- Security testing and penetration testing companies based in Austria42
- Security testing and penetration testing companies based in Romania38
- Security testing and penetration testing companies based in Czechia37
- Security testing and penetration testing companies based in Saudi Arabia37
- Security testing and penetration testing companies based in Ukraine36
- Security testing and penetration testing companies based in Estonia34
- Security testing and penetration testing companies based in New Zealand34
- Security testing and penetration testing companies based in Ireland33
- Security testing and penetration testing companies based in Malaysia26
Cities
- Security testing and penetration testing companies based in London, United Kingdom209
- Security testing and penetration testing companies based in Bangalore, India113
- Security testing and penetration testing companies based in Pune, India86
- Security testing and penetration testing companies based in Sao Paulo, Brazil84
- Security testing and penetration testing companies based in Hyderabad, India78
- Security testing and penetration testing companies based in Paris, France74
- Security testing and penetration testing companies based in Dubai, United Arab Emirates69
- Security testing and penetration testing companies based in New York, United States64
- Security testing and penetration testing companies based in Toronto, Canada58
- Security testing and penetration testing companies based in Mumbai, India53
- Security testing and penetration testing companies based in Sydney, Australia52
- Security testing and penetration testing companies based in Melbourne, Australia49
- Security testing and penetration testing companies based in Chennai, India48
- Security testing and penetration testing companies based in Singapore, Singapore47
- Security testing and penetration testing companies based in Ahmedabad, India44
- Security testing and penetration testing companies based in Noida, India43
- Security testing and penetration testing companies based in San Francisco, United States40
- Security testing and penetration testing companies based in Delhi, India36
- Security testing and penetration testing companies based in Atlanta, United States33
- Security testing and penetration testing companies based in Istanbul, Türkiye33
- Security testing and penetration testing companies based in Austin, United States31
- Security testing and penetration testing companies based in Warsaw, Poland31
- Security testing and penetration testing companies based in Chicago, United States30
- Security testing and penetration testing companies based in Tallinn, Estonia30
- Security testing and penetration testing companies based in Manchester, United Kingdom29
- Security testing and penetration testing companies based in Dallas, United States28
- Security testing and penetration testing companies based in Montreal, Canada28
- Security testing and penetration testing companies based in Berlin, Germany25
Questions about this company list
What does Exact match mean for security testing and penetration testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security testing and penetration testing companies did RevenueBase find worldwide?
The saved snapshot records 8,221 matching company records, 99,013 tracked contacts and 24,381 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security testing and penetration testing companies worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-testing-and-penetration-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗