Company lists · Data refreshed September 2026
Top 25 Security breach investigation companies worldwide
RevenueBase identified 8,566 security breach investigation companies worldwide as of September 2026 and tracks 114,653 professional contacts across them, including 32,123 with verified work emails. The United States is the largest market and London the largest hub.
This list covers security breach investigation companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for security breach investigation companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 breach investigation companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,222 contacts → | ||||
Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,378 contacts → | ||||
Indirect evidence “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,232 contacts → | ||||
Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 874 contacts → | ||||
Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 844 contacts → | ||||
Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 743 contacts → | ||||
Partial evidence “SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 641 contacts → | ||||
Partial evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 639 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 528 contacts → | ||||
Indirect evidence “Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 525 contacts → | ||||
Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 523 contacts → | ||||
Partial evidence “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 506 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 502 contacts → | ||||
Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 484 contacts → | ||||
Indirect evidence “At ProTechmanize, we’re committed to making cybersecurity simpler, stronger, and more future ready for the organizations we serve.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 473 contacts → | ||||
Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 462 contacts → | ||||
Indirect evidence “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 441 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 426 contacts → | ||||
Indirect evidence “Somos Secure Soft, el Centro de Excelencia en Ciberseguridad de la empresa Gtd, con más de 20 años de experiencia y presencia en Perú, Chile, Colombia, Ecuador y México.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 399 contacts → | ||||
Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 398 contacts → | ||||
Partial evidence “ACPL Systems is a pure-play cybersecurity services company focused on helping organisations translate security investments into measurable outcomes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 386 contacts → | ||||
Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 382 contacts → | ||||
Indirect evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 375 contacts → | ||||
Indirect evidence “We protect the world’s critical infrastructure from cyber threats.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 363 contacts → | ||||
Partial evidence “eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security breach investigation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security breach investigation companies.
- Partial evidence
- Its own public description names part of security breach investigation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security breach investigation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 8,566 security breach investigation companies worldwide
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Security breach investigation companies worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security breach investigation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for security breach investigation companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “security breach investigation companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security breach investigation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security breach investigation companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 32,123 across the full list. 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 September 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security breach investigation companies by location
65 lists · largest firstEvery Security breach investigation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security breach investigation companies based in the United States2,058
- Security breach investigation companies based in India784
- Security breach investigation companies based in the United Kingdom484
- Security breach investigation companies based in France306
- Security breach investigation companies based in Canada275
- Security breach investigation companies based in Australia263
- Security breach investigation companies based in Brazil256
- Security breach investigation companies based in Germany179
- Security breach investigation companies based in the Netherlands150
- Security breach investigation companies based in Spain148
- Security breach investigation companies based in the United Arab Emirates132
- Security breach investigation companies based in Italy130
- Security breach investigation companies based in Israel106
- Security breach investigation companies based in Mexico102
- Security breach investigation companies based in Türkiye93
- Security breach investigation companies based in South Africa88
- Security breach investigation companies based in Switzerland80
- Security breach investigation companies based in Colombia70
- Security breach investigation companies based in Belgium64
- Security breach investigation companies based in Chile63
- Security breach investigation companies based in Poland63
- Security breach investigation companies based in Singapore63
- Security breach investigation companies based in Saudi Arabia55
- Security breach investigation companies based in Indonesia52
- Security breach investigation companies based in Sweden51
- Security breach investigation companies based in Argentina40
- Security breach investigation companies based in Austria37
- Security breach investigation companies based in Romania36
- Security breach investigation companies based in Malaysia32
- Security breach investigation companies based in New Zealand31
- Security breach investigation companies based in Denmark26
- Security breach investigation companies based in Ireland26
- Security breach investigation companies based in Peru26
- Security breach investigation companies based in Ukraine26
- Security breach investigation companies based in Ecuador25
Cities
- Security breach investigation companies based in London, United Kingdom199
- Security breach investigation companies based in Paris, France99
- Security breach investigation companies based in Sao Paulo, Brazil97
- Security breach investigation companies based in Bangalore, India91
- Security breach investigation companies based in Dubai, United Arab Emirates78
- Security breach investigation companies based in Toronto, Canada67
- Security breach investigation companies based in Sydney, Australia64
- Security breach investigation companies based in Pune, India62
- Security breach investigation companies based in Hyderabad, India60
- Security breach investigation companies based in New York, United States59
- Security breach investigation companies based in Melbourne, Australia56
- Security breach investigation companies based in Mumbai, India56
- Security breach investigation companies based in Singapore, Singapore56
- Security breach investigation companies based in Madrid, Spain48
- Security breach investigation companies based in Atlanta, United States47
- Security breach investigation companies based in New Delhi, India44
- Security breach investigation companies based in Washington, United States43
- Security breach investigation companies based in Chennai, India42
- Security breach investigation companies based in Ahmedabad, India39
- Security breach investigation companies based in Riyadh, Saudi Arabia39
- Security breach investigation companies based in Austin, United States38
- Security breach investigation companies based in Miami, United States37
- Security breach investigation companies based in Houston, United States35
- Security breach investigation companies based in Dallas, United States34
- Security breach investigation companies based in Tampa, United States34
- Security breach investigation companies based in Tel Aviv, Israel32
- Security breach investigation companies based in Chicago, United States31
- Security breach investigation companies based in Barcelona, Spain27
- Security breach investigation companies based in Los Angeles, United States26
- Security breach investigation companies based in Columbia, United States25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security breach investigation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security breach investigation companies are there worldwide?
RevenueBase identified 8,566 security breach investigation companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Private Sector, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most security breach investigation companies?
The United States leads with 2,058 companies, followed by India (784) and the United Kingdom (484). Every security breach investigation companies list by country and city is linked on this page.
Which city has the most security breach investigation companies?
London leads with 200 headquartered companies, followed by Paris (99) and Sao Paulo (97).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 32,123 verified decision-maker contacts tracked across these 8,566 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.