Company lists · Data refreshed September 2026

Top 25 Breach investigation companies worldwide

Name: Breach investigation companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 5,686 companies tracked

RevenueBase identified 5,686 breach investigation companies worldwide as of September 2026 and tracks 85,658 professional contacts across them, including 23,717 with verified work emails. The United States is the largest market and London the largest hub.

This list covers 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 19, 2026. Country and city lists for 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

5,686Companies

85,658Contacts tracked

23,717Verified emails

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The 25 largest breach investigation companies worldwide

Ranked by team size

Top 25 of 5,686 breach investigation companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to breach investigation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Private Sector	Indirect evidence	United StatesHQ checked Sep 19, 2026	n/a	12,771 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
2	Bitdefender	Indirect evidence	Bucuresti, RomaniaHQ checked Sep 19, 2026	1,001-5,000	2,172 contacts →
	Indirect evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
3	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 19, 2026
4	Cellebrite	Partial evidence	Vienna, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,230 contacts →
	Partial evidence “Cellebrite is the leader in digital intelligence and investigative analytics, partnering with public and private organizations to transform how they manage data in investigations…” Source: RevenueBase Database · checked Sep 19, 2026
5	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	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 19, 2026
6	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 19, 2026
7	SISA	Indirect evidence	Bengaluru, IndiaHQ checked Sep 19, 2026	201-500	743 contacts →
	Indirect 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 19, 2026
8	Network Intelligence	Indirect evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	501-1,000	641 contacts →
	Indirect evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 19, 2026
9	I-Tracing	Indirect evidence	Courbevoie, FranceHQ checked Sep 19, 2026	1,001-5,000	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 19, 2026
10	Advens	Indirect evidence	Paris, ItalyHQ checked Sep 19, 2026	501-1,000	586 contacts →
	Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 19, 2026
11	Group-Ib	Indirect evidence	SingaporeHQ checked Sep 19, 2026	501-1,000	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 19, 2026
12	own.security	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	51-200	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 19, 2026
13	Securityhq	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	502 contacts →
	Indirect evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 19, 2026
14	Protechmanize	Indirect evidence	Thane, IndiaHQ checked Sep 19, 2026	501-1,000	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 19, 2026
15	Aujas Cybersecurity	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	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 19, 2026
16	ARETE	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 19, 2026	201-500	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 19, 2026
17	Palo Alto Networks Unit 42	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	441 contacts →
	Indirect 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 19, 2026
18	Safeway	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	201-500	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 19, 2026
19	Neverhack	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	1,001-5,000	382 contacts →
	Indirect evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 19, 2026
20	Esec Forte Technologies	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	201-500	363 contacts →
	Indirect 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 19, 2026
21	S-Rm	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	351 contacts →
	Indirect evidence “S-RM is a global intelligence and cyber security consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
22	SK Shieldus	Indirect evidence	경기도, South KoreaHQ checked Sep 19, 2026	5,001-10,000	348 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	Techdefence	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 19, 2026	201-500	340 contacts →
	Indirect evidence “TechDefence Labs (TechD Cybersecurity Limited) Award-winning \| Innovative \| Visionary We empower organizations across the globe to secure their applications, networks, and digital…” Source: RevenueBase Database · checked Sep 19, 2026
24	Talakunchi Networks PVT LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	335 contacts →
	Indirect evidence “T A L A K U N C H I Networks Pvt.” Source: RevenueBase Database · checked Sep 19, 2026
25	Truesec	Partial evidence	SwedenHQ checked Sep 19, 2026	201-500	332 contacts →
	Partial evidence “Prevent Breach & Minimize Impact” Source: RevenueBase Database · checked Sep 19, 2026

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: 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 breach investigation companies.
Partial evidence: Its own public description names part of 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 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 5,686 breach investigation companies worldwide

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Breach investigation companies worldwide at a glance

As of Sep 19, 2026

27.7%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

3,078

11-50

1,952

51-200

472

201-500

117

501-1,000

1,001-5,000

5,001-10,000

10001+

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 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 breach investigation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “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 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 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, 23,717 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 19, 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.

Breach investigation companies by location

32 lists · largest first

Every Breach investigation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 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 breach investigation companies are there worldwide?

RevenueBase identified 5,686 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 breach investigation companies?

The United States leads with 1,248 companies, followed by India (594) and the United Kingdom (322). Every breach investigation companies list by country and city is linked on this page.

Which city has the most breach investigation companies?

London leads with 134 headquartered companies, followed by Sao Paulo (71) and Paris (69).

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 23,717 verified decision-maker contacts tracked across these 5,686 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 19, 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.