Company lists · Data refreshed September 2026
Top 25 Counterintelligence consulting firms worldwide
RevenueBase identified 4,391 counterintelligence consulting firms worldwide as of September 2026 and tracks 40,785 professional contacts across them, including 8,689 with verified work emails. The United States is the largest market and London the largest hub.
This list covers counterintelligence consulting 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 27, 2026. Country and city lists for counterintelligence consulting 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.
The 25 largest counterintelligence consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,081 contacts → | ||||
Indirect evidence “Twenty-five years ago Andrews International (AI) began forming a network of the world’s foremost security authorities and connecting with strategic partners for operations…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 916 contacts → | ||||
Indirect evidence “We are the intelligence services company that continually redefines the edge of the possible to keep advancing our national security interests.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 781 contacts → | ||||
Indirect evidence “AEGIS is a London based, privately owned, British security and risk management company with overseas offices in Afghanistan, Bahrain, Iraq and the USA.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 771 contacts → | ||||
Indirect evidence “Since 2006, PSU has been the leading Scandinavian risk and security consultancy in China.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 677 contacts → | ||||
Indirect evidence “OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 571 contacts → | ||||
Indirect evidence “Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 553 contacts → | ||||
Indirect evidence “Security Alliance is a highly experienced provider of security solutions for private and business environments.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 381 contacts → | ||||
Indirect evidence “For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 351 contacts → | ||||
Indirect evidence “S-RM is a global intelligence and cyber security consultancy.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 350 contacts → | ||||
Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 338 contacts → | ||||
Indirect evidence “Sentar, an employee-owned company, is a leading cyber-intelligence solutions provider focused on the National Security sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 337 contacts → | ||||
Indirect evidence “MAX Security provides intelligence, protection, and operational support for organizations operating in complex and high-risk environments.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 336 contacts → | ||||
Indirect evidence “Vcheck is a global investigations firm that helps institutions protect their investments by providing intelligence on individuals and entities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 327 contacts → | ||||
Indirect evidence “DigiStream Investigations is a full-service private investigation firm specializing in insurance defense and legal support services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 312 contacts → | ||||
Indirect evidence “Where Mission Meets Technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 289 contacts → | ||||
Indirect evidence “Sibylline is the world’s leading private consultancy for geopolitical risk, intelligence, and strategic insight, dedicated to helping leaders and organisations anticipate change…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 280 contacts → | ||||
Indirect evidence “Strider is the leading strategic intelligence company empowering organizations to secure and advance their technology and innovation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 273 contacts → | ||||
Indirect evidence “Babel Street delivers mission-grade risk intelligence for organizations across government, defense, and the private sector to expose hidden identities, secure vendor networks, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 268 contacts → | ||||
Indirect evidence “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 233 contacts → | ||||
Indirect evidence “Fox-IT prevents, solves and mitigates the most serious cyber threats with innovative solutions for government, defense, law enforcement, critical infrastructure, banking, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 218 contacts → | ||||
Indirect evidence “IIRIS operating under its distinct business offerings "IntelliRisk"(IR),"IntelliSense"(IS),"Security Design" and "Brand Protection" seeks to provide comprehensive intelligence…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 216 contacts → | ||||
Partial evidence “T&M USA provides seamlessly integrated executive protection, investigative and consulting services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 207 contacts → | ||||
Indirect evidence “With unrivaled expertise and experience, we focus on threat actors and provide clients actionable intelligence to quickly combat and reduce the impact of adversaries.” Source: RevenueBase Database · checked Sep 27, 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: counterintelligence consulting 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 counterintelligence consulting firms.
- Partial evidence
- Its own public description names part of counterintelligence consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name counterintelligence consulting 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 4,391 counterintelligence consulting firms worldwide
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Counterintelligence consulting firms worldwide at a glance
As of Sep 27, 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 counterintelligence consulting 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
- Every country. Country and city lists for counterintelligence consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “counterintelligence consulting 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 counterintelligence consulting 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 counterintelligence consulting 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, 8,689 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 27, 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.
Counterintelligence consulting firms by location
24 lists · largest firstEvery Counterintelligence consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Counterintelligence consulting firms based in the United States1,460
- Counterintelligence consulting firms based in the United Kingdom327
- Counterintelligence consulting firms based in France159
- Counterintelligence consulting firms based in Brazil133
- Counterintelligence consulting firms based in Australia114
- Counterintelligence consulting firms based in Canada110
- Counterintelligence consulting firms based in India97
- Counterintelligence consulting firms based in Spain92
- Counterintelligence consulting firms based in Italy91
- Counterintelligence consulting firms based in Germany80
- Counterintelligence consulting firms based in Israel69
- Counterintelligence consulting firms based in Mexico68
- Counterintelligence consulting firms based in the Netherlands39
- Counterintelligence consulting firms based in Sweden38
- Counterintelligence consulting firms based in the United Arab Emirates38
- Counterintelligence consulting firms based in Türkiye31
Cities
- Counterintelligence consulting firms based in London, United Kingdom162
- Counterintelligence consulting firms based in Paris, France74
- Counterintelligence consulting firms based in Washington, United States70
- Counterintelligence consulting firms based in New York, United States56
- Counterintelligence consulting firms based in Sao Paulo, Brazil45
- Counterintelligence consulting firms based in Madrid, Spain39
- Counterintelligence consulting firms based in Arlington, United States31
- Counterintelligence consulting firms based in Houston, United States27
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 counterintelligence consulting 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 counterintelligence consulting firms are there worldwide?
RevenueBase identified 4,391 counterintelligence consulting 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?
Site سايت, headquartered in Riyadh, tops this list with the largest team on record.
Which country has the most counterintelligence consulting firms?
The United States leads with 1,460 companies, followed by the United Kingdom (327) and France (159). Every counterintelligence consulting firms list by country and city is linked on this page.
Which city has the most counterintelligence consulting firms?
London leads with 163 headquartered companies, followed by Paris (74) and Washington (70).
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 8,689 verified decision-maker contacts tracked across these 4,391 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 27, 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.