Company lists · Data refreshed September 2026

Top 25 Data breach response consultants worldwide

Name: Data breach response consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 10,964 companies tracked

RevenueBase identified 10,964 data breach response consultants worldwide as of September 2026 and tracks 126,491 professional contacts across them, including 38,016 with verified work emails. The United States is the largest market and London the largest hub.

This list covers data breach response consultants 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 data breach response consultants 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

10,964Companies

126,491Contacts tracked

38,016Verified emails

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The 25 largest data breach response consultants worldwide

Ranked by team size

Top 25 of 10,964 data breach response consultants worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to data breach response consultants: 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	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 19, 2026	1,001-5,000	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 19, 2026
3	Site سايت	Indirect evidence	Al Nakheel, Saudi ArabiaHQ checked Sep 19, 2026	501-1,000	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 19, 2026
4	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
5	Coalfire	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	947 contacts →
	Indirect evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 19, 2026
6	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
7	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
8	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
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	Vikingcloud	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	628 contacts →
	Indirect evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” 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	Paramount Computer Systems	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 19, 2026	201-500	525 contacts →
	Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 19, 2026
13	Ultraviolet Cyber	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 19, 2026	501-1,000	523 contacts →
	Indirect 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 19, 2026
14	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
15	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
16	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
17	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
18	ARETE	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 19, 2026	201-500	462 contacts →
	Partial 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
19	Palo Alto Networks Unit 42	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	441 contacts →
	Strong 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
20	Secure Soft S.A.C	Indirect evidence	Santiago De Surco, PeruHQ checked Sep 19, 2026	51-200	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 19, 2026
21	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
22	Acpl Systems	Indirect evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	201-500	398 contacts →
	Indirect 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 19, 2026
23	Kudelski Security	Indirect evidence	Cheseaux, United StatesHQ checked Sep 19, 2026	201-500	392 contacts →
	Indirect evidence “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Source: RevenueBase Database · checked Sep 19, 2026
24	PT Itsec Asia TBK	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 19, 2026	201-500	388 contacts →
	Indirect evidence “ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Source: RevenueBase Database · checked Sep 19, 2026
25	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

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: data breach response consultants. 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 data breach response consultants.
Partial evidence: Its own public description names part of data breach response consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data breach response consultants. 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 10,964 data breach response consultants worldwide

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Data breach response consultants worldwide at a glance

As of Sep 19, 2026

30.1%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

6,642

11-50

3,337

51-200

753

201-500

155

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 data breach response consultants, 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 data breach response consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “data breach response consultants”. 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 data breach response consultants), 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 data breach response consultants, 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, 38,016 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.

Data breach response consultants by location

69 lists · largest first

Every Data breach response consultants 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 data breach response consultants, 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 data breach response consultants are there worldwide?

RevenueBase identified 10,964 data breach response consultants 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 data breach response consultants?

The United States leads with 2,808 companies, followed by India (793) and the United Kingdom (717). Every data breach response consultants list by country and city is linked on this page.

Which city has the most data breach response consultants?

London leads with 280 headquartered companies, followed by Paris (132) and Sao Paulo (106).

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 38,016 verified decision-maker contacts tracked across these 10,964 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.