Company lists · Data refreshed September 2026
Top 25 Network security advisors worldwide
RevenueBase identified 16,667 network security advisors worldwide as of September 2026 and tracks 181,940 professional contacts across them, including 48,882 with verified work emails. The United States is the largest market and London the largest hub.
This list covers network security advisors 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 29, 2026. Country and city lists for network security advisors 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 network security advisors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,222 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 764 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 641 contacts → | ||||
Strong evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 634 contacts → | ||||
Indirect evidence “Help AG, the cybersecurity arm of e & company, provides leading enterprise businesses and governments across the Middle East with strategic consultancy combined with tailored…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 586 contacts → | ||||
Indirect evidence “Advens is a European, independent and outstanding leader in cybersecurity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 525 contacts → | ||||
Indirect evidence “Protection is Paramount!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 502 contacts → | ||||
Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 477 contacts → | ||||
Indirect evidence “SURE Global Technology is considered as one of the leading Saudi IT companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 398 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 397 contacts → | ||||
Indirect evidence “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 392 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 386 contacts → | ||||
Indirect evidence “Progress is our motivation because we are convinced that it will lead us to a successful future – independent of industries, companies and social classes.” Source: RevenueBase Database · checked Sep 29, 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: network security advisors. 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 network security advisors.
- Partial evidence
- Its own public description names part of network security advisors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name network security advisors. 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 16,667 network security advisors worldwide
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Network security advisors worldwide at a glance
As of Sep 29, 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 network security advisors, 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 network security advisors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “network security advisors”. 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 network security advisors), 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 network security advisors, 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, 48,882 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 29, 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.
Network security advisors by location
124 lists · largest firstEvery Network security advisors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Network security advisors based in the United States3,873
- Network security advisors based in India1,284
- Network security advisors based in the United Kingdom862
- Network security advisors based in Brazil670
- Network security advisors based in France601
- Network security advisors based in Canada542
- Network security advisors based in Germany482
- Network security advisors based in Australia466
- Network security advisors based in the United Arab Emirates262
- Network security advisors based in the Netherlands260
- Network security advisors based in Italy251
- Network security advisors based in Spain247
- Network security advisors based in Mexico245
- Network security advisors based in Türkiye196
- Network security advisors based in South Africa158
- Network security advisors based in Israel150
- Network security advisors based in Belgium149
- Network security advisors based in Pakistan148
- Network security advisors based in Switzerland143
- Network security advisors based in Colombia129
- Network security advisors based in Sweden125
- Network security advisors based in Saudi Arabia116
- Network security advisors based in Poland115
- Network security advisors based in Argentina114
- Network security advisors based in Chile110
- Network security advisors based in Indonesia101
- Network security advisors based in Singapore80
- Network security advisors based in Egypt73
- Network security advisors based in Romania70
- Network security advisors based in Malaysia68
- Network security advisors based in Austria66
- Network security advisors based in Denmark63
- Network security advisors based in New Zealand61
- Network security advisors based in Morocco59
- Network security advisors based in Greece58
- Network security advisors based in Peru55
- Network security advisors based in Kenya53
- Network security advisors based in Ecuador52
- Network security advisors based in Portugal47
- Network security advisors based in the Philippines41
- Network security advisors based in Ireland40
- Network security advisors based in Hungary39
- Network security advisors based in Sri Lanka39
- Network security advisors based in Japan38
- Network security advisors based in Thailand38
- Network security advisors based in Finland35
- Network security advisors based in Qatar35
- Network security advisors based in Ukraine35
- Network security advisors based in Luxembourg29
- Network security advisors based in Bulgaria28
- Network security advisors based in Hong Kong26
- Network security advisors based in Cyprus25
- Network security advisors based in Jordan25
- Network security advisors based in Slovakia25
Cities
- Network security advisors based in London, United Kingdom307
- Network security advisors based in Sao Paulo, Brazil196
- Network security advisors based in Paris, France166
- Network security advisors based in Dubai, United Arab Emirates157
- Network security advisors based in Toronto, Canada126
- Network security advisors based in Hyderabad, India106
- Network security advisors based in Sydney, Australia103
- Network security advisors based in Melbourne, Australia98
- Network security advisors based in New York, United States98
- Network security advisors based in Pune, India96
- Network security advisors based in Bangalore, India91
- Network security advisors based in Istanbul, Türkiye80
- Network security advisors based in Riyadh, Saudi Arabia78
- Network security advisors based in Chennai, India76
- Network security advisors based in Mumbai, India76
- Network security advisors based in Atlanta, United States75
- Network security advisors based in New Delhi, India75
- Network security advisors based in Singapore, Singapore69
- Network security advisors based in Houston, United States68
- Network security advisors based in Dallas, United States65
- Network security advisors based in Austin, United States64
- Network security advisors based in Madrid, Spain61
- Network security advisors based in Noida, India61
- Network security advisors based in Miami, United States59
- Network security advisors based in Stockholm, Sweden59
- Network security advisors based in Bengaluru, India56
- Network security advisors based in Ahmedabad, India54
- Network security advisors based in Chicago, United States53
- Network security advisors based in Montreal, Canada50
- Network security advisors based in Ottawa, Canada49
- Network security advisors based in Rio De Janeiro, Brazil49
- Network security advisors based in Washington, United States49
- Network security advisors based in Nairobi, Kenya47
- Network security advisors based in Los Angeles, United States46
- Network security advisors based in San Francisco, United States46
- Network security advisors based in Calgary, Canada44
- Network security advisors based in Tampa, United States44
- Network security advisors based in Berlin, Germany42
- Network security advisors based in Bogota, Colombia41
- Network security advisors based in San Diego, United States40
- Network security advisors based in Barcelona, Spain39
- Network security advisors based in Johannesburg, South Africa39
- Network security advisors based in Cairo, Egypt37
- Network security advisors based in Denver, United States37
- Network security advisors based in Santiago, Chile37
- Network security advisors based in Vancouver, Canada37
- Network security advisors based in Tel Aviv, Israel34
- Network security advisors based in Warszawa, Poland34
- Network security advisors based in Charlotte, United States33
- Network security advisors based in Manchester, United Kingdom33
- Network security advisors based in Arlington, United States32
- Network security advisors based in Gurgaon, India32
- Network security advisors based in Lima, Peru32
- Network security advisors based in Phoenix, United States31
- Network security advisors based in Brisbane, Australia30
- Network security advisors based in Quito, Ecuador30
- Network security advisors based in San Antonio, United States30
- Network security advisors based in Alexandria, United States29
- Network security advisors based in Columbia, United States29
- Network security advisors based in Jakarta, Indonesia29
- Network security advisors based in Gurugram, India28
- Network security advisors based in Seattle, United States27
- Network security advisors based in Belo Horizonte, Brazil26
- Network security advisors based in Boston, United States26
- Network security advisors based in Las Vegas, United States26
- Network security advisors based in Amsterdam, Netherlands25
- Network security advisors based in Curitiba, Brazil25
- Network security advisors based in Kuala Lumpur, Malaysia25
- Network security advisors based in Mississauga, Canada25
- Network security advisors based in Reston, 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 network security advisors, 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 network security advisors are there worldwide?
RevenueBase identified 16,667 network security advisors 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 network security advisors?
The United States leads with 3,873 companies, followed by India (1,284) and the United Kingdom (862). Every network security advisors list by country and city is linked on this page.
Which city has the most network security advisors?
London leads with 311 headquartered companies, followed by Sao Paulo (196) and Paris (166).
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 48,882 verified decision-maker contacts tracked across these 16,667 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 29, 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.