Company lists · Data refreshed September 2026

Top 25 Cybersecurity law firms worldwide

Name: Cybersecurity law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 6,335 companies tracked

RevenueBase identified 6,335 cybersecurity law firms worldwide as of September 2026 and tracks 64,863 professional contacts across them, including 22,372 with verified work emails and 10,851 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers cybersecurity law firms 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 1, 2026. Country and city lists for cybersecurity law firms 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

6,335Companies

64,863Contacts tracked

22,372Verified emails

10,851Mobile numbers

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The 25 largest cybersecurity law firms worldwide

Ranked by team size

Top 25 of 6,335 cybersecurity law firms worldwide, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity law firms: 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	OPTIV	Indirect evidence	Chantilly, VA, US	1,001-5,000	2,206 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 1, 2026
2	Guidepoint Security	Partial evidence	Tampa, FL, US	1,001-5,000	1,234 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 1, 2026
3	Coalfire	Partial evidence	Chicago, IL, US	1,001-5,000	960 contacts →
	Partial 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 1, 2026
4	SISA	Partial evidence	Bengaluru, IndiaHQ checked Sep 1, 2026	201-500	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 1, 2026
5	I-Tracing	Partial evidence	Courbevoie, FR	1,001-5,000	643 contacts →
	Partial 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 1, 2026
6	Knobbe Martens	Indirect evidence	San Francisco, CA, US	501-1,000	618 contacts →
	Indirect evidence “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Source: RevenueBase Database · checked Sep 1, 2026
7	Advens	Partial evidence	Barcelona, ES	501-1,000	588 contacts →
	Partial evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 1, 2026
8	Group-Ib	Partial evidence	SingaporeHQ checked Sep 1, 2026	501-1,000	528 contacts →
	Partial 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 1, 2026
9	own.security	Partial evidence	Rennes, FR	51-200	506 contacts →
	Partial 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 1, 2026
10	Securityhq	Partial evidence	New York, NY, US	501-1,000	492 contacts →
	Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 1, 2026
11	Protechmanize	Partial evidence	Thane, IndiaHQ checked Sep 1, 2026	501-1,000	484 contacts →
	Partial 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 1, 2026
12	ARETE	Indirect evidence	New York, NY, US	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 1, 2026
13	Neosecure By SEK	Indirect evidence	Sao Paulo, BR	501-1,000	416 contacts →
	Indirect evidence “Con más de 20 años de experiencia, 750 colaboradores y una base de más de 650 clientes en la región, operamos en los mercados de Brasil, Chile, Argentina, Colombia y Perú, donde…” Source: RevenueBase Database · checked Sep 1, 2026
14	Safeway	Indirect evidence	Rio De Janeiro, BR	201-500	397 contacts →
	Indirect evidence “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Source: RevenueBase Database · checked Sep 1, 2026
15	Neverhack	Partial evidence	Rende, IT	1,001-5,000	394 contacts →
	Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 1, 2026
16	Esec Forte Technologies	Indirect evidence	Gurugram, IndiaHQ checked Sep 1, 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 1, 2026
17	Licks Attorneys	Partial evidence	Curitiba, BR	201-500	341 contacts →
	Partial evidence “Licks Attorneys is a top-tier Brazilian law firm widely recognized for successfully handling large and strategic Intellectual Property, Life Sciences, Food & Drug, Regulatory…” Source: RevenueBase Database · checked Sep 1, 2026
18	Truesec	Indirect evidence	Malmo, SE	201-500	338 contacts →
	Indirect evidence “Prevent Breach & Minimize Impact” Source: RevenueBase Database · checked Sep 1, 2026
19	Total Cyber-Sec	Indirect evidence	Parques Del Pedregal Cdmx, MX	51-200	328 contacts →
	Indirect evidence “Somos una empresa de Grupo Salinas con un equipo de profesionales en Seguridad de la Información con más de 20 años de experiencia que nos respalda en los sectores: financieros…” Source: RevenueBase Database · checked Sep 1, 2026
20	Secureyes	Partial evidence	Bangalore, IndiaHQ checked Sep 1, 2026	201-500	270 contacts →
	Partial evidence “SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…” Source: RevenueBase Database · checked Sep 1, 2026
21	Prescient Security	Partial evidence	Nashville, TN, US	201-500	266 contacts →
	Partial evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 1, 2026
22	Baxter Clewis Cybersecurity	Partial evidence	Cedar Hill, TX, US	201-500	251 contacts →
	Partial evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 1, 2026
23	Sygnia	Indirect evidence	Tel Aviv, IL	201-500	249 contacts →
	Indirect evidence “Sygnia is a cyber technology and services company, providing high-end consulting and incident response support for organizations worldwide.” Source: RevenueBase Database · checked Sep 1, 2026
24	Lumifi	Indirect evidence	Scottsdale, AZ, US	51-200	247 contacts →
	Indirect evidence “Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Source: RevenueBase Database · checked Sep 1, 2026
25	Cyberani By Aramco Digital	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 1, 2026	201-500	241 contacts →
	Indirect evidence “Cyberani is an Aramco Digital company that is dedicated to safeguarding the digital frontiers of industry leaders and government agencies.” Source: RevenueBase Database · checked Sep 1, 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: cybersecurity law firms. 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 cybersecurity law firms.
Partial evidence: Its own public description names part of cybersecurity law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity law firms. 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 6,335 cybersecurity law firms worldwide

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Cybersecurity law firms worldwide at a glance

As of Sep 1, 2026

34.5%Verified-email coverage

16.7%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

3,984

11-50

1,811

51-200

417

201-500

501-1,000

1,001-5,000

10001+

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 cybersecurity law firms, 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: 32 countries, largest first: the United States, India, Brazil, the United Kingdom, France, Canada, Spain, Australia, Germany, Italy and 22 more. Country and city lists for cybersecurity law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cybersecurity law firms”. 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 cybersecurity law firms), 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 cybersecurity law firms, 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, 22,372 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 between September 1, 2026 and September 14, 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.

Cybersecurity law firms by location

62 lists · largest first

Every Cybersecurity law firms 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 cybersecurity law firms, 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 cybersecurity law firms are there worldwide?

RevenueBase identified 6,335 cybersecurity law firms 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?

OPTIV, headquartered in Chantilly, tops this list with the largest team on record.

Which country has the most cybersecurity law firms?

The United States leads with 2,006 companies, followed by India (625) and Brazil (426). Every cybersecurity law firms list by country and city is linked on this page.

Which city has the most cybersecurity law firms?

London leads with 190 headquartered companies, followed by Paris (146) and Sao Paulo (137).

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 22,372 verified decision-maker contacts tracked across these 6,335 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 1, 2026 and September 14, 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.