Company lists · Data refreshed September 2026
Top 25 Computer security consultants worldwide
RevenueBase identified 17,901 computer security consultants worldwide as of September 2026 and tracks 190,853 professional contacts across them, including 54,111 with verified work emails. The United States is the largest market and London the largest hub.
This list covers computer security 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 21, 2026. Country and city lists for computer security 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.
The 25 largest computer security consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,673 contacts → | ||||
Indirect evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,452 contacts → | ||||
Indirect evidence “Atuamos no core de empresas líderes em seus segmentos, onde tecnologia, estratégia e operação se encontram.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,378 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,252 contacts → | ||||
Indirect evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 925 contacts → | ||||
Indirect evidence “At BCG Platinion, we leverage our expertise alongside the unique experiences of our teams to accelerate digital transformations for our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 888 contacts → | ||||
Indirect evidence “Ensign InfoSecurity is the largest pure-play end-to-end cybersecurity service provider in Asia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 844 contacts → | ||||
Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 763 contacts → | ||||
Partial evidence “With 35 years of experience, Softcell Technologies Global is a trusted IT services provider specialising in (i) IT security and cybersecurity solutions,(ii) cloud / on-premise…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 636 contacts → | ||||
Indirect evidence “Everfox delivers trusted connectivity to protect the world's most critical environments, safeguarding the sensitive information behind decision advantage.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 629 contacts → | ||||
Partial evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 619 contacts → | ||||
Indirect evidence “Omegapoint hjälper dig att utveckla och cybersäkra din digitala verksamhet.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 525 contacts → | ||||
Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 502 contacts → | ||||
Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 442 contacts → | ||||
Indirect evidence “MNEMO: We are #DigitalChallengers.” Source: RevenueBase Database · checked Sep 21, 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: computer security 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 computer security consultants.
- Partial evidence
- Its own public description names part of computer security consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name computer security 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 17,901 computer security consultants worldwide
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Computer security consultants worldwide at a glance
As of Sep 21, 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 computer security 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 computer security consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “computer security 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 computer security 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 computer security 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, 54,111 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 21, 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.
Computer security consultants by location
105 lists · largest firstEvery Computer security consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Computer security consultants based in the United States4,407
- Computer security consultants based in India1,321
- Computer security consultants based in the United Kingdom1,131
- Computer security consultants based in France618
- Computer security consultants based in Australia605
- Computer security consultants based in Canada602
- Computer security consultants based in Germany484
- Computer security consultants based in Brazil477
- Computer security consultants based in the Netherlands289
- Computer security consultants based in the United Arab Emirates279
- Computer security consultants based in Spain276
- Computer security consultants based in Italy268
- Computer security consultants based in Mexico239
- Computer security consultants based in South Africa181
- Computer security consultants based in Türkiye177
- Computer security consultants based in Switzerland168
- Computer security consultants based in Belgium159
- Computer security consultants based in Israel154
- Computer security consultants based in Sweden146
- Computer security consultants based in Pakistan136
- Computer security consultants based in Poland123
- Computer security consultants based in Chile121
- Computer security consultants based in Colombia119
- Computer security consultants based in Saudi Arabia117
- Computer security consultants based in Argentina103
- Computer security consultants based in Indonesia101
- Computer security consultants based in Nigeria100
- Computer security consultants based in Singapore95
- Computer security consultants based in Austria70
- Computer security consultants based in Denmark67
- Computer security consultants based in New Zealand67
- Computer security consultants based in Romania66
- Computer security consultants based in Malaysia64
- Computer security consultants based in Kenya61
- Computer security consultants based in Egypt58
- Computer security consultants based in Morocco56
- Computer security consultants based in Ireland51
- Computer security consultants based in Portugal51
- Computer security consultants based in Finland48
- Computer security consultants based in Peru48
- Computer security consultants based in Greece46
- Computer security consultants based in Ecuador44
- Computer security consultants based in Hungary42
- Computer security consultants based in the Philippines38
- Computer security consultants based in Thailand37
- Computer security consultants based in Norway35
- Computer security consultants based in Ukraine35
- Computer security consultants based in Bulgaria32
- Computer security consultants based in Qatar31
- Computer security consultants based in Japan30
- Computer security consultants based in Luxembourg28
- Computer security consultants based in Tunisia27
- Computer security consultants based in Cyprus26
- Computer security consultants based in Jordan26
Cities
- Computer security consultants based in Sao Paulo, Brazil173
- Computer security consultants based in Toronto, Canada137
- Computer security consultants based in Sydney, Australia128
- Computer security consultants based in Melbourne, Australia124
- Computer security consultants based in New York, United States117
- Computer security consultants based in Hyderabad, India97
- Computer security consultants based in Pune, India96
- Computer security consultants based in Bangalore, India91
- Computer security consultants based in Atlanta, United States88
- Computer security consultants based in Washington, United States84
- Computer security consultants based in New Delhi, India82
- Computer security consultants based in Houston, United States81
- Computer security consultants based in Mumbai, India79
- Computer security consultants based in Austin, United States78
- Computer security consultants based in Dallas, United States76
- Computer security consultants based in Chennai, India73
- Computer security consultants based in Chicago, United States70
- Computer security consultants based in Bengaluru, India67
- Computer security consultants based in Miami, United States67
- Computer security consultants based in Montreal, Canada61
- Computer security consultants based in Ahmedabad, India59
- Computer security consultants based in Noida, India59
- Computer security consultants based in Ottawa, Canada57
- Computer security consultants based in Tampa, United States53
- Computer security consultants based in Calgary, Canada51
- Computer security consultants based in Brisbane, Australia49
- Computer security consultants based in San Francisco, United States47
- Computer security consultants based in Los Angeles, United States46
- Computer security consultants based in Arlington, United States42
- Computer security consultants based in Denver, United States42
- Computer security consultants based in Vancouver, Canada40
- Computer security consultants based in San Diego, United States39
- Computer security consultants based in Boston, United States38
- Computer security consultants based in Columbia, United States37
- Computer security consultants based in Canberra, Australia36
- Computer security consultants based in Charlotte, United States36
- Computer security consultants based in Mclean, United States34
- Computer security consultants based in Gurgaon, India32
- Computer security consultants based in Rio De Janeiro, Brazil32
- Computer security consultants based in San Antonio, United States31
- Computer security consultants based in Alexandria, United States30
- Computer security consultants based in Orlando, United States30
- Computer security consultants based in Baltimore, United States29
- Computer security consultants based in Gurugram, India29
- Computer security consultants based in Las Vegas, United States29
- Computer security consultants based in Seattle, United States29
- Computer security consultants based in Raleigh, United States28
- Computer security consultants based in Ashburn, United States27
- Computer security consultants based in Phoenix, United States27
- Computer security consultants based in Reston, United States27
- Computer security consultants based in Belo Horizonte, Brazil25
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 computer security 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 computer security consultants are there worldwide?
RevenueBase identified 17,901 computer security 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 computer security consultants?
The United States leads with 4,407 companies, followed by India (1,321) and the United Kingdom (1,131). Every computer security consultants list by country and city is linked on this page.
Which city has the most computer security consultants?
London leads with 447 headquartered companies, followed by Paris (182) and Sao Paulo (173).
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 54,111 verified decision-maker contacts tracked across these 17,901 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 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 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.