Company lists · Data refreshed November 2026
Top 25 Security incident response firms worldwide
RevenueBase identified 3,147 company matches for security incident response firms worldwide as of November 2026 and tracks 61,802 professional contacts across them, including 16,464 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for security incident response 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 security incident response 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 security incident response 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 | 3,355 contacts → | ||||
Exact match “Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 1,080 contacts → | ||||
Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 909 contacts → | ||||
Exact match “Cyderes is a global managed cybersecurity services partner dedicated to defending against today’s relentless threatscape.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 687 contacts → | ||||
Exact match “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 624 contacts → | ||||
Exact match “Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 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 | |||||
| 10 | 514 contacts → | ||||
Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 510 contacts → | ||||
Exact match “Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 505 contacts → | ||||
Exact match “Cybereason, a LevelBlue company, is a global cybersecurity leader delivering advanced endpoint detection and response (EDR) and industry recognized consulting services to support…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 496 contacts → | ||||
Exact match “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 481 contacts → | ||||
Exact match “AFIMAC Global: Trusted Crisis Management & Business Continuity Partner.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 411 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 360 contacts → | ||||
Exact match “Prevent Breach & Minimize Impact” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 359 contacts → | ||||
Exact match “MAX Security provides intelligence, protection, and operational support for organizations operating in complex and high-risk environments.” 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 | 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 | |||||
| 20 | 338 contacts → | ||||
Exact match “BI.ZONE is an expert in digital risks management that helps organizations develop their businesses safely in cyberspace.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 298 contacts → | ||||
Exact match “CENTEGIX is the leader in incident response solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 263 contacts → | ||||
Exact match “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 258 contacts → | ||||
Exact match “AKS IT Services (an ISO 9001:2015 and ISO 27001:2013 certified company) is a leading IT Security Services and Solutions provider with over 7500 clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 251 contacts → | ||||
Exact match “TriCorps is an integrated security and technology firm that specializes in providing cost effective, world-class services tailored to meeting the needs of our clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 247 contacts → | ||||
Exact match “Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.” 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 incident response 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 3,147 security incident response firms worldwide
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Security incident response 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 security incident response firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “security incident response 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 16,464 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 incident response firms by location
74 lists · largest firstEvery Security incident response firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security incident response firms based in the United States858
- Security incident response firms based in India244
- Security incident response firms based in the United Kingdom183
- Security incident response firms based in Mexico119
- Security incident response firms based in Canada102
- Security incident response firms based in France95
- Security incident response firms based in Australia82
- Security incident response firms based in Germany82
- Security incident response firms based in Chile76
- Security incident response firms based in Colombia75
- Security incident response firms based in Brazil73
- Security incident response firms based in Saudi Arabia62
- Security incident response firms based in Singapore62
- Security incident response firms based in Nigeria61
- Security incident response firms based in Israel58
- Security incident response firms based in Indonesia50
- Security incident response firms based in Sweden50
- Security incident response firms based in the United Arab Emirates47
- Security incident response firms based in Argentina46
- Security incident response firms based in Italy46
- Security incident response firms based in Spain42
- Security incident response firms based in the Netherlands42
- Security incident response firms based in Austria41
- Security incident response firms based in Romania39
- Security incident response firms based in New Zealand36
- Security incident response firms based in South Africa35
- Security incident response firms based in Czechia30
- Security incident response firms based in Ecuador30
- Security incident response firms based in Malaysia30
- Security incident response firms based in Türkiye30
- Security incident response firms based in Ireland28
- Security incident response firms based in the Philippines28
- Security incident response firms based in Denmark27
- Security incident response firms based in Switzerland27
- Security incident response firms based in Belgium26
- Security incident response firms based in Portugal26
- Security incident response firms based in Finland25
- Security incident response firms based in Poland25
Cities
- Security incident response firms based in Sao Paulo, Brazil88
- Security incident response firms based in London, United Kingdom86
- Security incident response firms based in Toronto, Canada80
- Security incident response firms based in Sydney, Australia69
- Security incident response firms based in Melbourne, Australia68
- Security incident response firms based in Pune, India66
- Security incident response firms based in Hyderabad, India65
- Security incident response firms based in New Delhi, India56
- Security incident response firms based in Bangalore, India55
- Security incident response firms based in Singapore, Singapore55
- Security incident response firms based in Chicago, United States48
- Security incident response firms based in Miami, United States48
- Security incident response firms based in Chennai, India47
- Security incident response firms based in Houston, United States46
- Security incident response firms based in Madrid, Spain46
- Security incident response firms based in Atlanta, United States45
- Security incident response firms based in Riyadh, Saudi Arabia40
- Security incident response firms based in Ahmedabad, India39
- Security incident response firms based in Dallas, United States39
- Security incident response firms based in Montreal, Canada39
- Security incident response firms based in Austin, United States38
- Security incident response firms based in Noida, India37
- Security incident response firms based in Paris, France36
- Security incident response firms based in Tel Aviv, Israel34
- Security incident response firms based in Barcelona, Spain32
- Security incident response firms based in Dubai, United Arab Emirates32
- Security incident response firms based in San Francisco, United States32
- Security incident response firms based in Calgary, Canada31
- Security incident response firms based in Los Angeles, United States30
- Security incident response firms based in Tampa, United States30
- Security incident response firms based in New York, United States26
- Security incident response firms based in San Diego, United States26
- Security incident response firms based in Johannesburg, South Africa25
- Security incident response firms based in Mumbai, India25
- Security incident response firms based in Santiago, Chile25
- Security incident response firms based in Washington, 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 “security incident response firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security incident response firms are there worldwide?
RevenueBase identified 3,147 company matches for security incident response 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 security incident response firms?
The United States leads with 858 companies, followed by India (244) and the United Kingdom (183). Every security incident response firms list by country and city is linked on this page.
Which city has the most security incident response firms?
London leads with 87 company records, followed by Paris (36) and Dubai (32).
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 16,464 professional contacts with verified work emails tracked across these 3,147 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 incident response 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 3,147 matching company records for security incident response firms worldwide, with 61,802 tracked contacts and 16,464 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 incident response 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 |  Arctic Wolfarcticwolf.comHQ: Eden Prairie, United StatesReported employees: 1,001-5,000 | Eden Prairie, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  Brosnan Risk Consultantsbrosnanrisk.comHQ: Pearl River, CA, United StatesReported employees: 5,001-10,000 | Pearl River, CA, United States | 5,001-10,000 | Exact match | 1,080 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Cyderescyderes.comHQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 909 contacts → |
“Cyderes is a global managed cybersecurity services partner dedicated to defending against today’s relentless threatscape.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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. | |||||
| 7 |  I-Tracingi-tracing.comHQ: Courbevoie, FranceReported employees: 1,001-5,000 | Courbevoie, France | 1,001-5,000 | Exact match | 687 contacts → |
“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Group-Ibgroup-ib.comHQ: SingaporeReported employees: 501-1,000 | Singapore | 501-1,000 | Exact match | 624 contacts → |
“Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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. | |||||
| 10 |  Aujas Cybersecurityaujas.comHQ: Cupertino, United StatesReported employees: 1,001-5,000 | Cupertino, United States | 1,001-5,000 | Exact match | 514 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Palo Alto Networks Unit 42paloaltonetworks.comHQ: Santa Clara, CA, United StatesReported employees: 5,001-10,000 | Santa Clara, CA, United States | 5,001-10,000 | Exact match | 510 contacts → |
“Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Cybereason, A Levelblue Companycybereason.comHQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 505 contacts → |
“Cybereason, a LevelBlue company, is a global cybersecurity leader delivering advanced endpoint detection and response (EDR) and industry recognized consulting services to support…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  ARETEareteir.comHQ: Boca Raton, United StatesReported employees: 201-500 | Boca Raton, United States | 201-500 | Exact match | 496 contacts → |
“Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Afimac Globalafimacglobal.comHQ: Strongsville, ON, United StatesReported employees: 51-200 | Strongsville, ON, United States | 51-200 | Exact match | 481 contacts → |
“AFIMAC Global: Trusted Crisis Management & Business Continuity Partner.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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. | |||||
| 16 |  Truesectruesec.comHQ: SwedenReported employees: 201-500 | Sweden | 201-500 | Exact match | 360 contacts → |
“Prevent Breach & Minimize Impact” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  MAX Securitymax-security.comHQ: West Coast, IsraelReported employees: 201-500 | West Coast, Israel | 201-500 | Exact match | 359 contacts → |
“MAX Security provides intelligence, protection, and operational support for organizations operating in complex and high-risk environments.” 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 |  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. | |||||
| 20 |  bi.zonebi.zoneHQ: Moscow, RussiaReported employees: 1,001-5,000 | Moscow, Russia | 1,001-5,000 | Exact match | 338 contacts → |
“BI.ZONE is an expert in digital risks management that helps organizations develop their businesses safely in cyberspace.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Centegixcentegix.comHQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 298 contacts → |
“CENTEGIX is the leader in incident response solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Cipher A Prosegur Companycipher.comHQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 263 contacts → |
“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  AKS Information Technology Servicesaksitservices.co.inHQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 258 contacts → |
“AKS IT Services (an ISO 9001:2015 and ISO 27001:2013 certified company) is a leading IT Security Services and Solutions provider with over 7500 clients.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Tricorpstricorps.comHQ: Oklahoma City, OK, United StatesReported employees: 501-1,000 | Oklahoma City, OK, United States | 501-1,000 | Exact match | 251 contacts → |
“TriCorps is an integrated security and technology firm that specializes in providing cost effective, world-class services tailored to meeting the needs of our clients.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Sygniasygnia.coHQ: Tel Aviv, IsraelReported employees: 201-500 | Tel Aviv, Israel | 201-500 | Exact match | 247 contacts → |
“Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,147 company matches
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Security incident response 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
3,143 records in the displayed employee bands.
4 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 3,147 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 incident response firms by location
74 lists · largest firstEvery Security incident response firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security incident response firms based in the United States858
- Security incident response firms based in India244
- Security incident response firms based in the United Kingdom183
- Security incident response firms based in Mexico119
- Security incident response firms based in Canada102
- Security incident response firms based in France95
- Security incident response firms based in Australia82
- Security incident response firms based in Germany82
- Security incident response firms based in Chile76
- Security incident response firms based in Colombia75
- Security incident response firms based in Brazil73
- Security incident response firms based in Saudi Arabia62
- Security incident response firms based in Singapore62
- Security incident response firms based in Nigeria61
- Security incident response firms based in Israel58
- Security incident response firms based in Indonesia50
- Security incident response firms based in Sweden50
- Security incident response firms based in the United Arab Emirates47
- Security incident response firms based in Argentina46
- Security incident response firms based in Italy46
- Security incident response firms based in Spain42
- Security incident response firms based in the Netherlands42
- Security incident response firms based in Austria41
- Security incident response firms based in Romania39
- Security incident response firms based in New Zealand36
- Security incident response firms based in South Africa35
- Security incident response firms based in Czechia30
- Security incident response firms based in Ecuador30
- Security incident response firms based in Malaysia30
- Security incident response firms based in Türkiye30
- Security incident response firms based in Ireland28
- Security incident response firms based in the Philippines28
- Security incident response firms based in Denmark27
- Security incident response firms based in Switzerland27
- Security incident response firms based in Belgium26
- Security incident response firms based in Portugal26
- Security incident response firms based in Finland25
- Security incident response firms based in Poland25
Cities
- Security incident response firms based in Sao Paulo, Brazil88
- Security incident response firms based in London, United Kingdom86
- Security incident response firms based in Toronto, Canada80
- Security incident response firms based in Sydney, Australia69
- Security incident response firms based in Melbourne, Australia68
- Security incident response firms based in Pune, India66
- Security incident response firms based in Hyderabad, India65
- Security incident response firms based in New Delhi, India56
- Security incident response firms based in Bangalore, India55
- Security incident response firms based in Singapore, Singapore55
- Security incident response firms based in Chicago, United States48
- Security incident response firms based in Miami, United States48
- Security incident response firms based in Chennai, India47
- Security incident response firms based in Houston, United States46
- Security incident response firms based in Madrid, Spain46
- Security incident response firms based in Atlanta, United States45
- Security incident response firms based in Riyadh, Saudi Arabia40
- Security incident response firms based in Ahmedabad, India39
- Security incident response firms based in Dallas, United States39
- Security incident response firms based in Montreal, Canada39
- Security incident response firms based in Austin, United States38
- Security incident response firms based in Noida, India37
- Security incident response firms based in Paris, France36
- Security incident response firms based in Tel Aviv, Israel34
- Security incident response firms based in Barcelona, Spain32
- Security incident response firms based in Dubai, United Arab Emirates32
- Security incident response firms based in San Francisco, United States32
- Security incident response firms based in Calgary, Canada31
- Security incident response firms based in Los Angeles, United States30
- Security incident response firms based in Tampa, United States30
- Security incident response firms based in New York, United States26
- Security incident response firms based in San Diego, United States26
- Security incident response firms based in Johannesburg, South Africa25
- Security incident response firms based in Mumbai, India25
- Security incident response firms based in Santiago, Chile25
- Security incident response firms based in Washington, United States25
Questions about this company list
What does Exact match mean for security incident response 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 security incident response firms did RevenueBase find worldwide?
The saved snapshot records 3,147 matching company records, 61,802 tracked contacts and 16,464 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 incident response firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-incident-response-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 security incident response firms worldwide
RevenueBase records 3,147 matching company records for security incident response firms worldwide, with 61,802 tracked contacts and 16,464 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 incident response 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 | Arctic Wolfarcticwolf.com HQ: Eden Prairie, United StatesReported employees: 1,001-5,000 | Eden Prairie, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“Every year new technologies, vendors, and solutions emerge-yet despite this constant innovation, high-profile breaches are all over the headlines.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | Brosnan Risk Consultantsbrosnanrisk.com HQ: Pearl River, CA, United StatesReported employees: 5,001-10,000 | Pearl River, CA, United States | 5,001-10,000 | Exact match | 1,080 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cyderescyderes.com HQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 909 contacts → |
“Cyderes is a global managed cybersecurity services partner dedicated to defending against today’s relentless threatscape.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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. | |||||
| 7 | I-Tracingi-tracing.com HQ: Courbevoie, FranceReported employees: 1,001-5,000 | Courbevoie, France | 1,001-5,000 | Exact match | 687 contacts → |
“I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Group-Ibgroup-ib.com HQ: SingaporeReported employees: 501-1,000 | Singapore | 501-1,000 | Exact match | 624 contacts → |
“Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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. | |||||
| 10 | Aujas Cybersecurityaujas.com HQ: Cupertino, United StatesReported employees: 1,001-5,000 | Cupertino, United States | 1,001-5,000 | Exact match | 514 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Palo Alto Networks Unit 42paloaltonetworks.com HQ: Santa Clara, CA, United StatesReported employees: 5,001-10,000 | Santa Clara, CA, United States | 5,001-10,000 | Exact match | 510 contacts → |
“Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cybereason, A Levelblue Companycybereason.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 505 contacts → |
“Cybereason, a LevelBlue company, is a global cybersecurity leader delivering advanced endpoint detection and response (EDR) and industry recognized consulting services to support…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ARETEareteir.com HQ: Boca Raton, United StatesReported employees: 201-500 | Boca Raton, United States | 201-500 | Exact match | 496 contacts → |
“Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Afimac Globalafimacglobal.com HQ: Strongsville, ON, United StatesReported employees: 51-200 | Strongsville, ON, United States | 51-200 | Exact match | 481 contacts → |
“AFIMAC Global: Trusted Crisis Management & Business Continuity Partner.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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. | |||||
| 16 | Truesectruesec.com HQ: SwedenReported employees: 201-500 | Sweden | 201-500 | Exact match | 360 contacts → |
“Prevent Breach & Minimize Impact” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MAX Securitymax-security.com HQ: West Coast, IsraelReported employees: 201-500 | West Coast, Israel | 201-500 | Exact match | 359 contacts → |
“MAX Security provides intelligence, protection, and operational support for organizations operating in complex and high-risk environments.” 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 | 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. | |||||
| 20 | bi.zonebi.zone HQ: Moscow, RussiaReported employees: 1,001-5,000 | Moscow, Russia | 1,001-5,000 | Exact match | 338 contacts → |
“BI.ZONE is an expert in digital risks management that helps organizations develop their businesses safely in cyberspace.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Centegixcentegix.com HQ: Atlanta, GA, United StatesReported employees: 51-200 | Atlanta, GA, United States | 51-200 | Exact match | 298 contacts → |
“CENTEGIX is the leader in incident response solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cipher A Prosegur Companycipher.com HQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 263 contacts → |
“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | AKS Information Technology Servicesaksitservices.co.in HQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 258 contacts → |
“AKS IT Services (an ISO 9001:2015 and ISO 27001:2013 certified company) is a leading IT Security Services and Solutions provider with over 7500 clients.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Tricorpstricorps.com HQ: Oklahoma City, OK, United StatesReported employees: 501-1,000 | Oklahoma City, OK, United States | 501-1,000 | Exact match | 251 contacts → |
“TriCorps is an integrated security and technology firm that specializes in providing cost effective, world-class services tailored to meeting the needs of our clients.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sygniasygnia.co HQ: Tel Aviv, IsraelReported employees: 201-500 | Tel Aviv, Israel | 201-500 | Exact match | 247 contacts → |
“Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,147 company matches
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Security incident response 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
3,143 records in the displayed employee bands.
4 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 3,147 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 incident response firms by location
74 lists · largest firstEvery Security incident response firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security incident response firms based in the United States858
- Security incident response firms based in India244
- Security incident response firms based in the United Kingdom183
- Security incident response firms based in Mexico119
- Security incident response firms based in Canada102
- Security incident response firms based in France95
- Security incident response firms based in Australia82
- Security incident response firms based in Germany82
- Security incident response firms based in Chile76
- Security incident response firms based in Colombia75
- Security incident response firms based in Brazil73
- Security incident response firms based in Saudi Arabia62
- Security incident response firms based in Singapore62
- Security incident response firms based in Nigeria61
- Security incident response firms based in Israel58
- Security incident response firms based in Indonesia50
- Security incident response firms based in Sweden50
- Security incident response firms based in the United Arab Emirates47
- Security incident response firms based in Argentina46
- Security incident response firms based in Italy46
- Security incident response firms based in Spain42
- Security incident response firms based in the Netherlands42
- Security incident response firms based in Austria41
- Security incident response firms based in Romania39
- Security incident response firms based in New Zealand36
- Security incident response firms based in South Africa35
- Security incident response firms based in Czechia30
- Security incident response firms based in Ecuador30
- Security incident response firms based in Malaysia30
- Security incident response firms based in Türkiye30
- Security incident response firms based in Ireland28
- Security incident response firms based in the Philippines28
- Security incident response firms based in Denmark27
- Security incident response firms based in Switzerland27
- Security incident response firms based in Belgium26
- Security incident response firms based in Portugal26
- Security incident response firms based in Finland25
- Security incident response firms based in Poland25
Cities
- Security incident response firms based in Sao Paulo, Brazil88
- Security incident response firms based in London, United Kingdom86
- Security incident response firms based in Toronto, Canada80
- Security incident response firms based in Sydney, Australia69
- Security incident response firms based in Melbourne, Australia68
- Security incident response firms based in Pune, India66
- Security incident response firms based in Hyderabad, India65
- Security incident response firms based in New Delhi, India56
- Security incident response firms based in Bangalore, India55
- Security incident response firms based in Singapore, Singapore55
- Security incident response firms based in Chicago, United States48
- Security incident response firms based in Miami, United States48
- Security incident response firms based in Chennai, India47
- Security incident response firms based in Houston, United States46
- Security incident response firms based in Madrid, Spain46
- Security incident response firms based in Atlanta, United States45
- Security incident response firms based in Riyadh, Saudi Arabia40
- Security incident response firms based in Ahmedabad, India39
- Security incident response firms based in Dallas, United States39
- Security incident response firms based in Montreal, Canada39
- Security incident response firms based in Austin, United States38
- Security incident response firms based in Noida, India37
- Security incident response firms based in Paris, France36
- Security incident response firms based in Tel Aviv, Israel34
- Security incident response firms based in Barcelona, Spain32
- Security incident response firms based in Dubai, United Arab Emirates32
- Security incident response firms based in San Francisco, United States32
- Security incident response firms based in Calgary, Canada31
- Security incident response firms based in Los Angeles, United States30
- Security incident response firms based in Tampa, United States30
- Security incident response firms based in New York, United States26
- Security incident response firms based in San Diego, United States26
- Security incident response firms based in Johannesburg, South Africa25
- Security incident response firms based in Mumbai, India25
- Security incident response firms based in Santiago, Chile25
- Security incident response firms based in Washington, United States25
Questions about this company list
What does Exact match mean for security incident response 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 security incident response firms did RevenueBase find worldwide?
The saved snapshot records 3,147 matching company records, 61,802 tracked contacts and 16,464 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 incident response firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-incident-response-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗