Company lists · Data refreshed September 2026
Top 25 Data security consultants worldwide
RevenueBase identified 21,431 data security consultants worldwide as of September 2026 and tracks 219,622 professional contacts across them, including 59,485 with verified work emails. The United States is the largest market and London the largest hub.
This list covers data 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 data 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 data 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 | 3,387 contacts → | ||||
Partial evidence “Il Gruppo Sicuritalia, con oltre 18.500 dipendenti, è la più grande azienda italiana ed il secondo player privato europeo in ambito Security.” 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 | 1,431 contacts → | ||||
Indirect evidence “Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,374 contacts → | ||||
Partial evidence “First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,345 contacts → | ||||
Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 1,050 contacts → | ||||
Strong evidence “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,037 contacts → | ||||
Indirect evidence “Synoptek is a leading global managed services provider and technology consulting firm that delivers transformative business results.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,007 contacts → | ||||
Indirect evidence “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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. | |||||
| 14 | 844 contacts → | ||||
Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 771 contacts → | ||||
Strong evidence “Since 2006, PSU has been the leading Scandinavian risk and security consultancy in China.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 764 contacts → | ||||
Strong evidence “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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. | |||||
| 18 | 742 contacts → | ||||
Indirect evidence “A consulting firm providing technology solutions and advisory services to both private and public sector organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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. | |||||
| 20 | 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. | |||||
| 21 | 607 contacts → | ||||
Indirect evidence “S&L International, Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 557 contacts → | ||||
Indirect evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 525 contacts → | ||||
Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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. | |||||
| 25 | 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. | |||||
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 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 data security consultants.
- Partial evidence
- Its own public description names part of data security consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name data 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 21,431 data security consultants worldwide
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Data 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 data 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 data security consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “data 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 data 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 data 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, 59,485 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.
Data security consultants by location
120 lists · largest firstEvery Data security consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Data security consultants based in the United States5,121
- Data security consultants based in the United Kingdom1,224
- Data security consultants based in India1,171
- Data security consultants based in Germany941
- Data security consultants based in Brazil910
- Data security consultants based in France878
- Data security consultants based in Canada689
- Data security consultants based in Australia647
- Data security consultants based in the Netherlands448
- Data security consultants based in Spain402
- Data security consultants based in Italy393
- Data security consultants based in Mexico297
- Data security consultants based in the United Arab Emirates256
- Data security consultants based in Switzerland246
- Data security consultants based in South Africa205
- Data security consultants based in Sweden200
- Data security consultants based in Türkiye196
- Data security consultants based in Poland179
- Data security consultants based in Belgium175
- Data security consultants based in Israel173
- Data security consultants based in Colombia169
- Data security consultants based in Chile155
- Data security consultants based in Argentina152
- Data security consultants based in Nigeria108
- Data security consultants based in Austria102
- Data security consultants based in Indonesia101
- Data security consultants based in Singapore98
- Data security consultants based in Pakistan97
- Data security consultants based in Saudi Arabia93
- Data security consultants based in Denmark92
- Data security consultants based in Portugal87
- Data security consultants based in Romania79
- Data security consultants based in New Zealand78
- Data security consultants based in Peru77
- Data security consultants based in Ireland70
- Data security consultants based in Morocco67
- Data security consultants based in Kenya63
- Data security consultants based in Greece61
- Data security consultants based in Ecuador60
- Data security consultants based in Malaysia60
- Data security consultants based in Egypt56
- Data security consultants based in Hungary56
- Data security consultants based in Finland55
- Data security consultants based in Russia44
- Data security consultants based in Luxembourg43
- Data security consultants based in Norway43
- Data security consultants based in Thailand38
- Data security consultants based in the Philippines35
- Data security consultants based in Ukraine34
- Data security consultants based in Estonia33
- Data security consultants based in Bulgaria32
- Data security consultants based in Cyprus29
- Data security consultants based in Japan29
- Data security consultants based in Tunisia29
- Data security consultants based in Hong Kong28
- Data security consultants based in Jordan28
- Data security consultants based in Slovakia25
Cities
- Data security consultants based in Sao Paulo, Brazil290
- Data security consultants based in Toronto, Canada169
- Data security consultants based in New York, United States148
- Data security consultants based in Sydney, Australia145
- Data security consultants based in Melbourne, Australia129
- Data security consultants based in Washington, United States110
- Data security consultants based in Atlanta, United States103
- Data security consultants based in Houston, United States92
- Data security consultants based in Bangalore, India89
- Data security consultants based in Mumbai, India88
- Data security consultants based in Hyderabad, India85
- Data security consultants based in Pune, India81
- Data security consultants based in Dallas, United States80
- Data security consultants based in Austin, United States78
- Data security consultants based in Chicago, United States76
- Data security consultants based in Chennai, India69
- Data security consultants based in Berlin, Germany68
- Data security consultants based in San Francisco, United States67
- Data security consultants based in Miami, United States65
- Data security consultants based in New Delhi, India65
- Data security consultants based in Rio De Janeiro, Brazil65
- Data security consultants based in Bengaluru, India64
- Data security consultants based in Montreal, Canada64
- Data security consultants based in Tampa, United States63
- Data security consultants based in Noida, India62
- Data security consultants based in Calgary, Canada61
- Data security consultants based in Los Angeles, United States61
- Data security consultants based in Ottawa, Canada61
- Data security consultants based in Brisbane, Australia53
- Data security consultants based in San Diego, United States49
- Data security consultants based in Denver, United States46
- Data security consultants based in Arlington, United States45
- Data security consultants based in Charlotte, United States45
- Data security consultants based in Boston, United States44
- Data security consultants based in Vancouver, Canada44
- Data security consultants based in Ahmedabad, India40
- Data security consultants based in San Antonio, United States39
- Data security consultants based in Seattle, United States39
- Data security consultants based in Alexandria, United States38
- Data security consultants based in Hamburg, Germany38
- Data security consultants based in Roma, Italy38
- Data security consultants based in Belo Horizonte, Brazil37
- Data security consultants based in Canberra, Australia36
- Data security consultants based in Reston, United States36
- Data security consultants based in Brasilia, Brazil34
- Data security consultants based in Columbia, United States34
- Data security consultants based in Curitiba, Brazil34
- Data security consultants based in Phoenix, United States34
- Data security consultants based in Las Vegas, United States32
- Data security consultants based in Raleigh, United States32
- Data security consultants based in Gurgaon, India31
- Data security consultants based in Delhi, India29
- Data security consultants based in Gurugram, India29
- Data security consultants based in Minneapolis, United States29
- Data security consultants based in Orlando, United States29
- Data security consultants based in Rome, Italy29
- Data security consultants based in Porto Alegre, Brazil28
- Data security consultants based in Columbus, United States27
- Data security consultants based in Mclean, United States27
- Data security consultants based in Ashburn, United States26
- Data security consultants based in Milano, Italy26
- Data security consultants based in Portland, United States26
- Data security consultants based in Scottsdale, United States25
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 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 data security consultants are there worldwide?
RevenueBase identified 21,431 data 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 data security consultants?
The United States leads with 5,121 companies, followed by the United Kingdom (1,224) and India (1,171). Every data security consultants list by country and city is linked on this page.
Which city has the most data security consultants?
London leads with 459 headquartered companies, followed by Sao Paulo (290) and Paris (245).
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 59,485 verified decision-maker contacts tracked across these 21,431 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.