Company lists · Data refreshed September 2026

Top 25 Intelligence gathering services worldwide

Name: Intelligence gathering services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 3,647 companies tracked

RevenueBase identified 3,647 intelligence gathering services worldwide as of September 2026 and tracks 55,671 professional contacts across them, including 14,288 with verified work emails. The United States is the largest market and London the largest hub.

This list covers intelligence gathering services 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 intelligence gathering services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

3,647Companies

55,671Contacts tracked

14,288Verified emails

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The 25 largest intelligence gathering services worldwide

Ranked by team size

Top 25 of 3,647 intelligence gathering services worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to intelligence gathering services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Globaldata PLC	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,779 contacts →
	Indirect evidence “In a world drowning in data, we deliver clarity.” Source: RevenueBase Database · checked Sep 21, 2026
2	Systems Planning & Analysis	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,092 contacts →
	Indirect evidence “Systems Planning & Analysis (SPA) is a leading global provider of data-driven analytical insights for critical national security programs.” Source: RevenueBase Database · checked Sep 21, 2026
3	Cognyte	Partial evidence	Herzliya, IsraelHQ checked Sep 21, 2026	1,001-5,000	1,425 contacts →
	Partial evidence “Cognyte is a leading software-driven technology company focused on solutions for investigative analytics that enable customers to generate Actionable Intelligence for a Safer…” Source: RevenueBase Database · checked Sep 21, 2026
4	Cellebrite	Partial evidence	Vienna, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,230 contacts →
	Partial evidence “Cellebrite is the leader in digital intelligence and investigative analytics, partnering with public and private organizations to transform how they manage data in investigations…” Source: RevenueBase Database · checked Sep 21, 2026
5	Andrews International	Indirect evidence	Burbank, CA, United StatesHQ checked Sep 21, 2026	10001+	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 21, 2026
6	Nightwing	Partial evidence	United StatesHQ checked Sep 21, 2026	1,001-5,000	916 contacts →
	Partial 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 21, 2026
7	L-3 National Security Solutions	Indirect evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	814 contacts →
	Indirect evidence “L-3 National Security Solutions was acquired by CACI International Inc on February 1, 2016.” Source: RevenueBase Database · checked Sep 21, 2026
8	Accuris	Partial evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	1,001-5,000	704 contacts →
	Partial evidence “Mission-critical intelligence for modern engineering and supply chain organizations.” Source: RevenueBase Database · checked Sep 21, 2026
9	STG INC	Partial evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	700 contacts →
	Partial evidence “SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.” Source: RevenueBase Database · checked Sep 21, 2026
10	Omniplex World Services Corporation	Partial evidence	Herndon, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	677 contacts →
	Partial 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 21, 2026
11	JANES	Indirect evidence	Croydon, United KingdomHQ checked Sep 21, 2026	501-1,000	608 contacts →
	Indirect evidence “In a complex global landscape, leaders need accurate information and full context quickly.” Source: RevenueBase Database · checked Sep 21, 2026
12	TEGUS	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	529 contacts →
	Partial evidence “Tegus, by AlphaSense is the leading company intelligence platform for key decision makers.” Source: RevenueBase Database · checked Sep 21, 2026
13	Cleartrail Technologies	Partial evidence	Indore, IndiaHQ checked Sep 21, 2026	501-1,000	468 contacts →
	Partial evidence “For over two decades, ClearTrail Technologies has been serving federal and law enforcement agencies with powerful intelligence and investigation technologies.” Source: RevenueBase Database · checked Sep 21, 2026
14	JSI	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	201-500	410 contacts →
	Partial evidence “When data is complex and the mission is critical, law enforcement, intelligence agencies, and security organizations trust JSI.” Source: RevenueBase Database · checked Sep 21, 2026
15	Macaulay-Brown, Inc. Macb , An Alion Company	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	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 21, 2026
16	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 21, 2026	201-500	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 21, 2026
17	Penlink	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 21, 2026	201-500	342 contacts →
	Partial evidence “Trusted Innovation for Intelligent Decisions” Source: RevenueBase Database · checked Sep 21, 2026
18	Norred & Associates, INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	501-1,000	340 contacts →
	Indirect evidence “A full-service firm with the proven capabilities to manage all facets of your company’s security requirements, Norred & Associates, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
19	Sentar INC	Partial evidence	Huntsville, AL, United StatesHQ checked Sep 21, 2026	201-500	338 contacts →
	Partial evidence “Sentar, an employee-owned company, is a leading cyber-intelligence solutions provider focused on the National Security sector.” Source: RevenueBase Database · checked Sep 21, 2026
20	MAX Security	Partial evidence	West Coast, IsraelHQ checked Sep 21, 2026	201-500	337 contacts →
	Partial evidence “MAX Security provides intelligence, protection, and operational support for organizations operating in complex and high-risk environments.” Source: RevenueBase Database · checked Sep 21, 2026
21	Vcheck	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	336 contacts →
	Partial 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 21, 2026
22	Digistream Investigations	Indirect evidence	Davis, CA, United StatesHQ checked Sep 21, 2026	201-500	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 21, 2026
23	Fgs, LLC	Indirect evidence	La Plata, MD, United StatesHQ checked Sep 21, 2026	201-500	312 contacts →
	Indirect evidence “Where Mission Meets Technology.” Source: RevenueBase Database · checked Sep 21, 2026
24	NSO Group	Indirect evidence	Herzelia, IsraelHQ checked Sep 21, 2026	501-1,000	297 contacts →
	Indirect evidence “At this challenging age, when criminals and terrorists are abusing innovative technologies to “go dark”, NSO Group - a global leading Israeli technology company - sheds light on…” Source: RevenueBase Database · checked Sep 21, 2026
25	Sibylline	Partial evidence	Global, United KingdomHQ checked Sep 21, 2026	201-500	289 contacts →
	Partial 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 21, 2026

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: intelligence gathering services. 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 intelligence gathering services.
Partial evidence: Its own public description names part of intelligence gathering services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name intelligence gathering services. 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 3,647 intelligence gathering services worldwide

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Intelligence gathering services worldwide at a glance

As of Sep 21, 2026

25.7%Verified-email coverage

15.3Average contacts per company

1-10Median size (employees)

5.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,042

11-50

1,055

51-200

338

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among intelligence gathering services, 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 intelligence gathering services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “intelligence gathering services”. 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 intelligence gathering services), 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 intelligence gathering services, 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, 14,288 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.

Intelligence gathering services by location

18 lists · largest first

Every Intelligence gathering services 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 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 intelligence gathering services, 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 intelligence gathering services are there worldwide?

RevenueBase identified 3,647 intelligence gathering services 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?

Globaldata PLC, headquartered in London, tops this list with the largest team on record.

Which country has the most intelligence gathering services?

The United States leads with 1,043 companies, followed by the United Kingdom (354) and Brazil (143). Every intelligence gathering services list by country and city is linked on this page.

Which city has the most intelligence gathering services?

London leads with 213 headquartered companies, followed by Paris (62) and New York (56).

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 14,288 verified decision-maker contacts tracked across these 3,647 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.