Company lists · Data refreshed September 2026

Top 25 Cybersecurity lawyers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 7,360 companies tracked

RevenueBase identified 7,360 company matches for cybersecurity lawyers worldwide as of September 2026 and tracks 64,065 professional contacts across them, including 22,641 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for cybersecurity lawyers 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 September 21, 2026. Country and city lists for cybersecurity lawyers 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

7,360Companies

64,065Contacts tracked

22,641Verified emails

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The 25 largest cybersecurity lawyers worldwide

Ranked by team size

Top 25 of 7,360 company matches for cybersecurity lawyers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Guidepoint Security	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,232 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 · Sep 21, 2026 · View company records in RevenueBase
3	Irdeto	Exact match	Hoofddorp, NetherlandsHQ recorded Sep 21, 2026	1,001-5,000	1,026 contacts →
	Exact match “Irdeto, a CANAL+ company, is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Trustwave, A Levelblue Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	501-1,000	874 contacts →
	Exact match “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	I-Tracing	Exact match	Courbevoie, FranceHQ recorded Sep 21, 2026	1,001-5,000	639 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 · Sep 21, 2026 · View company records in RevenueBase
6	Knobbe Martens	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	606 contacts →
	Exact match “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Advens	Exact match	Paris, ItalyHQ recorded Sep 21, 2026	501-1,000	586 contacts →
	Exact match “Advens is a European, independent and outstanding leader in cybersecurity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Group-Ib	Exact match	SingaporeHQ recorded Sep 21, 2026	501-1,000	528 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 · Sep 21, 2026 · View company records in RevenueBase
9	own.security	Exact match	Paris, FranceHQ recorded Sep 21, 2026	51-200	506 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 · Sep 21, 2026 · View company records in RevenueBase
10	Securityhq	Exact match	London, United KingdomHQ recorded Sep 21, 2026	501-1,000	502 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	ARETE	Exact match	Boca Raton, FL, United StatesHQ recorded Sep 21, 2026	201-500	462 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 · Sep 21, 2026 · View company records in RevenueBase
12	Palo Alto Networks Unit 42	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	441 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 · Sep 21, 2026 · View company records in RevenueBase
13	Neverhack	Exact match	Paris, FranceHQ recorded Sep 21, 2026	1,001-5,000	382 contacts →
	Exact match “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Haystackid	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	201-500	368 contacts →
	Exact match “HaystackID solves complex data challenges related to legal, compliance, regulatory, and cyber events.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Licks Attorneys	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 21, 2026	201-500	335 contacts →
	Exact match “Licks Attorneys is a top-tier Brazilian law firm widely recognized for successfully handling large and strategic Intellectual Property, Life Sciences, Food & Drug, Regulatory…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	bi.zone	Exact match	Moscow, RussiaHQ recorded Sep 21, 2026	1,001-5,000	328 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 · Sep 21, 2026 · View company records in RevenueBase
17	Nviso Security	Exact match	Brussels, BelgiumHQ recorded Sep 21, 2026	201-500	315 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 · Sep 21, 2026 · View company records in RevenueBase
18	Bridewell	Exact match	Reading, United KingdomHQ recorded Sep 21, 2026	201-500	303 contacts →
	Exact match “Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Ebryx Pvt. LTD	Exact match	Lahore, PakistanHQ recorded Sep 21, 2026	201-500	300 contacts →
	Exact match “With over a decade of experience in providing cybersecurity consulting, Managed Security Service Provider (MSSP) operations, and custom engineering services, Ebryx serves multiple…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Secureyes	Exact match	Bangalore, IndiaHQ recorded Sep 21, 2026	201-500	270 contacts →
	Exact match “SecurEyes is a global cybersecurity specialist firm offering advisory plus consulting services and reg-tech products solving for cybersecurity challenges so that business leaders…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Baxter Clewis Cybersecurity	Exact match	Cedar Hill, TX, United StatesHQ recorded Sep 21, 2026	201-500	255 contacts →
	Exact match “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Lumifi	Exact match	Scottsdale, AZ, United StatesHQ recorded Sep 21, 2026	51-200	249 contacts →
	Exact match “Lumifi Cyber helps organizations illuminate their cyber defense with continuous protection across the full security lifecycle.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Sygnia	Exact match	Tel Aviv, IsraelHQ recorded Sep 21, 2026	201-500	249 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 · Sep 21, 2026 · View company records in RevenueBase
24	Trillium Information Security Systems	Exact match	Toronto, ON, CanadaHQ recorded Sep 21, 2026	51-200	239 contacts →
	Exact match “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Fox-It	Exact match	Rijswijk, NetherlandsHQ recorded Sep 21, 2026	201-500	233 contacts →
	Exact match “Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” Recorded in the RevenueBase company graph · Sep 21, 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 “cybersecurity lawyers”. 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 7,360 cybersecurity lawyers worldwide

See the full list, filter by size, metro and specialty, and access 22,641 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity lawyers worldwide at a glance

As of Sep 21, 2026

35.3%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

4,778

11-50

2,044

51-200

418

201-500

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

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 cybersecurity lawyers are linked below.
What qualifies: Company records worldwide whose business descriptions match “cybersecurity lawyers” 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 22,641 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 September 21, 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.

Cybersecurity lawyers by location

38 lists · largest first

Every Cybersecurity lawyers 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 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 “cybersecurity lawyers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity lawyers are there worldwide?

RevenueBase identified 7,360 company matches for cybersecurity lawyers worldwide as of September 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?

OPTIV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most cybersecurity lawyers?

The United States leads with 1,873 companies, followed by India (494) and the United Kingdom (409). Every cybersecurity lawyers list by country and city is linked on this page.

Which city has the most cybersecurity lawyers?

London leads with 189 company records, followed by Paris (119) and Sao Paulo (94).

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 22,641 professional contacts with verified work emails tracked across these 7,360 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 September 21, 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.