Company lists · Data refreshed November 2026
Top 25 Network security testing firms worldwide
RevenueBase identified 5,167 company matches for network security testing firms worldwide as of November 2026 and tracks 58,134 professional contacts across them, including 12,451 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for network security testing firms 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 network security testing firms 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 network security testing firms 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 | 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 | |||||
| 3 | 569 contacts → | ||||
Exact match “Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 259 contacts → | ||||
Exact match “Software development has changed.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 251 contacts → | ||||
Exact match “A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 243 contacts → | ||||
Exact match “Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 207 contacts → | ||||
Exact match “CENSUS is a cybersecurity engineering powerhouse.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 199 contacts → | ||||
Exact match “Kualitatem empowers businesses to deliver quality software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 198 contacts → | ||||
Exact match “2Bsecure Ltd.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 194 contacts → | ||||
Exact match “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 191 contacts → | ||||
Exact match “Net Square is a company specializing in information security.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 185 contacts → | ||||
Exact match “Synacktiv is an offensive security company founded in 2012 by several security experts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 178 contacts → | ||||
Exact match “Most businesses don't have a marketing problem, a visibility problem, or a security problem in isolation, they have all three, quietly working against each other.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 177 contacts → | ||||
Exact match “Yogosha is an Offensive Security Testing Platform that allows companies and governments to raise their security posture.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 176 contacts → | ||||
Exact match “ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 172 contacts → | ||||
Exact match “We are Reversec.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 164 contacts → | ||||
Exact match “BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 160 contacts → | ||||
Exact match “AttackIQ is the leader in threat-informed Continuous Threat Exposure Management (CTEM), helping organizations continuously validate defenses, break attack paths, and reduce threat…” 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 “network security testing firms”. 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 5,167 network security testing firms worldwide
See the full list, filter by size, metro and specialty, and access 12,451 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Network security testing firms 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 network security testing firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “network security testing firms” 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 12,451 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.
Network security testing firms by location
35 lists · largest firstEvery Network security testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Network security testing firms based in the United States947
- Network security testing firms based in India612
- Network security testing firms based in the United Kingdom331
- Network security testing firms based in Germany158
- Network security testing firms based in France137
- Network security testing firms based in Brazil135
- Network security testing firms based in the Netherlands118
- Network security testing firms based in Australia115
- Network security testing firms based in Canada114
- Network security testing firms based in Türkiye70
- Network security testing firms based in Spain65
- Network security testing firms based in Israel58
- Network security testing firms based in Poland58
- Network security testing firms based in the United Arab Emirates53
- Network security testing firms based in Italy49
- Network security testing firms based in Switzerland47
- Network security testing firms based in South Africa44
- Network security testing firms based in Indonesia43
- Network security testing firms based in Austria33
- Network security testing firms based in Sweden33
- Network security testing firms based in Belgium31
- Network security testing firms based in Mexico31
- Network security testing firms based in Ukraine28
- Network security testing firms based in Estonia26
- Network security testing firms based in Romania26
Cities
- Network security testing firms based in London, United Kingdom118
- Network security testing firms based in Bangalore, India68
- Network security testing firms based in Sao Paulo, Brazil48
- Network security testing firms based in Paris, France45
- Network security testing firms based in New York, United States43
- Network security testing firms based in Toronto, Canada39
- Network security testing firms based in Dubai, United Arab Emirates31
- Network security testing firms based in Sydney, Australia30
- Network security testing firms based in Melbourne, Australia27
- Network security testing firms based in San Francisco, United States25
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 “network security testing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many network security testing firms are there worldwide?
RevenueBase identified 5,167 company matches for network security testing firms 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 network security testing firms?
The United States leads with 947 companies, followed by India (612) and the United Kingdom (331). Every network security testing firms list by country and city is linked on this page.
Which city has the most network security testing firms?
London leads with 119 company records, followed by Bangalore (68) and Pune (50).
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 12,451 professional contacts with verified work emails tracked across these 5,167 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.
Ready to reach these companies? Verified emails and direct dials for all 5,167 network security testing firms worldwide. Start with a free account, no credit card.
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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 network security testing firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 5,167 matching company records for network security testing firms worldwide, with 58,134 tracked contacts and 12,451 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 network security testing firms 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 |  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. | |||||
| 3 |  horizon3.aihorizon3.aiHQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 569 contacts → |
“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  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. | |||||
| 7 |  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. | |||||
| 8 |  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. | |||||
| 9 |  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. | |||||
| 10 |  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. | |||||
| 11 |  Aikido Securityaikido.devHQ: Ghent, BelgiumReported employees: 201-500 | Ghent, Belgium | 201-500 | Exact match | 259 contacts → |
“Software development has changed.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  TCM Securitytcm.rocksHQ: Charlotte, NC, United StatesReported employees: Not recorded | Charlotte, NC, United States | Not recorded | Exact match | 251 contacts → |
“A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Securin INCsecurin.ioHQ: Albuquerque, NM, United StatesReported employees: 201-500 | Albuquerque, NM, United States | 201-500 | Exact match | 243 contacts → |
“Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Censuscensus-labs.comHQ: Athens, MA, GreeceReported employees: 51-200 | Athens, MA, Greece | 51-200 | Exact match | 207 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Kualitatem INCkualitatem.comHQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Matrix 2bsecure2bsecure.co.ilHQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 198 contacts → |
“2Bsecure Ltd.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ampcus Cyberampcuscyber.comHQ: Chantilly, United StatesReported employees: 1,001-5,000 | Chantilly, United States | 1,001-5,000 | Exact match | 194 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  NET Square Solutions Pvt. LTDnet-square.comHQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 191 contacts → |
“Net Square is a company specializing in information security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Synacktivsynacktiv.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 185 contacts → |
“Synacktiv is an offensive security company founded in 2012 by several security experts.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Sdad Technology Pvt. LTDsdadtechnology.comHQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 178 contacts → |
“Most businesses don't have a marketing problem, a visibility problem, or a security problem in isolation, they have all three, quietly working against each other.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Yogoshayogosha.comHQ: Paris, FranceReported employees: Not recorded | Paris, France | Not recorded | Exact match | 177 contacts → |
“Yogosha is an Offensive Security Testing Platform that allows companies and governments to raise their security posture.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Valuementorvaluementor.comHQ: Houston, United StatesReported employees: 51-200 | Houston, United States | 51-200 | Exact match | 176 contacts → |
“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Reversecreversec.comHQ: Sweden, ItalyReported employees: 201-500 | Sweden, Italy | 201-500 | Exact match | 172 contacts → |
“We are Reversec.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Breachlock, INCbreachlock.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 164 contacts → |
“BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Attackiqattackiq.comHQ: Los Altos, United StatesReported employees: 51-200 | Los Altos, United States | 51-200 | Exact match | 160 contacts → |
“AttackIQ is the leader in threat-informed Continuous Threat Exposure Management (CTEM), helping organizations continuously validate defenses, break attack paths, and reduce threat…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,167 company matches
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Network security testing firms: 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
5,157 records in the displayed employee bands.
10 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 5,167 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 ↗
Network security testing firms by location
35 lists · largest firstEvery Network security testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Network security testing firms based in the United States947
- Network security testing firms based in India612
- Network security testing firms based in the United Kingdom331
- Network security testing firms based in Germany158
- Network security testing firms based in France137
- Network security testing firms based in Brazil135
- Network security testing firms based in the Netherlands118
- Network security testing firms based in Australia115
- Network security testing firms based in Canada114
- Network security testing firms based in Türkiye70
- Network security testing firms based in Spain65
- Network security testing firms based in Israel58
- Network security testing firms based in Poland58
- Network security testing firms based in the United Arab Emirates53
- Network security testing firms based in Italy49
- Network security testing firms based in Switzerland47
- Network security testing firms based in South Africa44
- Network security testing firms based in Indonesia43
- Network security testing firms based in Austria33
- Network security testing firms based in Sweden33
- Network security testing firms based in Belgium31
- Network security testing firms based in Mexico31
- Network security testing firms based in Ukraine28
- Network security testing firms based in Estonia26
- Network security testing firms based in Romania26
Cities
- Network security testing firms based in London, United Kingdom118
- Network security testing firms based in Bangalore, India68
- Network security testing firms based in Sao Paulo, Brazil48
- Network security testing firms based in Paris, France45
- Network security testing firms based in New York, United States43
- Network security testing firms based in Toronto, Canada39
- Network security testing firms based in Dubai, United Arab Emirates31
- Network security testing firms based in Sydney, Australia30
- Network security testing firms based in Melbourne, Australia27
- Network security testing firms based in San Francisco, United States25
Questions about this company list
What does Exact match mean for network security testing firms?
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 network security testing firms did RevenueBase find worldwide?
The saved snapshot records 5,167 matching company records, 58,134 tracked contacts and 12,451 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 network security testing firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/network-security-testing-firms.
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 network security testing firms worldwide
RevenueBase records 5,167 matching company records for network security testing firms worldwide, with 58,134 tracked contacts and 12,451 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 network security testing firms 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 | 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. | |||||
| 3 | horizon3.aihorizon3.ai HQ: San Francisco, CA, United StatesReported employees: 501-1,000 | San Francisco, CA, United States | 501-1,000 | Exact match | 569 contacts → |
“Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | Aikido Securityaikido.dev HQ: Ghent, BelgiumReported employees: 201-500 | Ghent, Belgium | 201-500 | Exact match | 259 contacts → |
“Software development has changed.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | TCM Securitytcm.rocks HQ: Charlotte, NC, United StatesReported employees: Not recorded | Charlotte, NC, United States | Not recorded | Exact match | 251 contacts → |
“A veteran-owned cybersecurity company focused on penetration testing, security training, and compliance.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Securin INCsecurin.io HQ: Albuquerque, NM, United StatesReported employees: 201-500 | Albuquerque, NM, United States | 201-500 | Exact match | 243 contacts → |
“Securin is an AI-native cybersecurity company that helps organizations discover, validate, prioritize, and mobilize against exploitable risk, before attackers can act.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Censuscensus-labs.com HQ: Athens, MA, GreeceReported employees: 51-200 | Athens, MA, Greece | 51-200 | Exact match | 207 contacts → |
“CENSUS is a cybersecurity engineering powerhouse.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Kualitatem INCkualitatem.com HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Matrix 2bsecure2bsecure.co.il HQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 198 contacts → |
“2Bsecure Ltd.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ampcus Cyberampcuscyber.com HQ: Chantilly, United StatesReported employees: 1,001-5,000 | Chantilly, United States | 1,001-5,000 | Exact match | 194 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | NET Square Solutions Pvt. LTDnet-square.com HQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 191 contacts → |
“Net Square is a company specializing in information security.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Synacktivsynacktiv.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 185 contacts → |
“Synacktiv is an offensive security company founded in 2012 by several security experts.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sdad Technology Pvt. LTDsdadtechnology.com HQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 178 contacts → |
“Most businesses don't have a marketing problem, a visibility problem, or a security problem in isolation, they have all three, quietly working against each other.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Yogoshayogosha.com HQ: Paris, FranceReported employees: Not recorded | Paris, France | Not recorded | Exact match | 177 contacts → |
“Yogosha is an Offensive Security Testing Platform that allows companies and governments to raise their security posture.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Valuementorvaluementor.com HQ: Houston, United StatesReported employees: 51-200 | Houston, United States | 51-200 | Exact match | 176 contacts → |
“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Reversecreversec.com HQ: Sweden, ItalyReported employees: 201-500 | Sweden, Italy | 201-500 | Exact match | 172 contacts → |
“We are Reversec.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Breachlock, INCbreachlock.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 164 contacts → |
“BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Attackiqattackiq.com HQ: Los Altos, United StatesReported employees: 51-200 | Los Altos, United States | 51-200 | Exact match | 160 contacts → |
“AttackIQ is the leader in threat-informed Continuous Threat Exposure Management (CTEM), helping organizations continuously validate defenses, break attack paths, and reduce threat…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Network security testing firms: 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
5,157 records in the displayed employee bands.
10 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 5,167 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 ↗
Network security testing firms by location
35 lists · largest firstEvery Network security testing firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Network security testing firms based in the United States947
- Network security testing firms based in India612
- Network security testing firms based in the United Kingdom331
- Network security testing firms based in Germany158
- Network security testing firms based in France137
- Network security testing firms based in Brazil135
- Network security testing firms based in the Netherlands118
- Network security testing firms based in Australia115
- Network security testing firms based in Canada114
- Network security testing firms based in Türkiye70
- Network security testing firms based in Spain65
- Network security testing firms based in Israel58
- Network security testing firms based in Poland58
- Network security testing firms based in the United Arab Emirates53
- Network security testing firms based in Italy49
- Network security testing firms based in Switzerland47
- Network security testing firms based in South Africa44
- Network security testing firms based in Indonesia43
- Network security testing firms based in Austria33
- Network security testing firms based in Sweden33
- Network security testing firms based in Belgium31
- Network security testing firms based in Mexico31
- Network security testing firms based in Ukraine28
- Network security testing firms based in Estonia26
- Network security testing firms based in Romania26
Cities
- Network security testing firms based in London, United Kingdom118
- Network security testing firms based in Bangalore, India68
- Network security testing firms based in Sao Paulo, Brazil48
- Network security testing firms based in Paris, France45
- Network security testing firms based in New York, United States43
- Network security testing firms based in Toronto, Canada39
- Network security testing firms based in Dubai, United Arab Emirates31
- Network security testing firms based in Sydney, Australia30
- Network security testing firms based in Melbourne, Australia27
- Network security testing firms based in San Francisco, United States25
Questions about this company list
What does Exact match mean for network security testing firms?
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 network security testing firms did RevenueBase find worldwide?
The saved snapshot records 5,167 matching company records, 58,134 tracked contacts and 12,451 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
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Cite this list
RevenueBase Data Team. Top 25 network security testing firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/network-security-testing-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗