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Company lists · Data refreshed September 2026

Top 25 Intelligence and security services based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 5,306 companies tracked

RevenueBase identified 5,306 intelligence and security services headquartered in the United States as of September 2026 and tracks 168,245 professional contacts across them, including 37,018 with verified work emails and 70,675 with mobile numbers. Washington is the largest hub.

This list covers intelligence and security services headquartered in the United States, 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
5,306Companies
168,245Contacts tracked
37,018Verified emails
70,675Mobile numbers
Unlock all 5,306 companies Free signup · no credit card · 500 free credits

The 25 largest intelligence and security services based in the United States

Ranked by team size
Top 25 of 5,306 intelligence and security services based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names intelligence and security services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
General Dynamics Information TechnologyIndirect evidence
Falls Church, VA, United StatesHQ checked Sep 4, 202610001+24,019

“GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.”

Source: company website · checked Sep 4, 2026
2
PeratonIndirect evidence
Reston, CA, United StatesHQ checked Sep 4, 202610001+10,741

“At Peraton, we're at the forefront of delivering the next big thing every day.”

Source: company website · checked Sep 4, 2026
3
MantechIndirect evidence
Herndon, VA, United StatesHQ checked Sep 4, 20265,001-10,0009,756

“MANTECH is more than a technology company.”

Source: company website · checked Sep 4, 2026
4
U.S. Security Associates, INCIndirect evidence
Roswell, UT, United StatesHQ checked Sep 4, 202610001+3,600

“U.S.”

Source: company website · checked Sep 4, 2026
5
TrellixStrong evidence
Plano, TX, United StatesHQ checked Sep 4, 20261,001-5,0003,490

“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.”

Source: company website · checked Sep 4, 2026
6
OPTIVIndirect evidence
Leawood, VA, United StatesHQ checked Sep 4, 20261,001-5,0002,206

“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.”

Source: company website · checked Sep 4, 2026
7
Systems Planning & AnalysisPartial evidence
Alexandria, VA, United StatesHQ checked Sep 4, 20261,001-5,0002,082

“Systems Planning & Analysis (SPA) is a leading global provider of data-driven analytical insights for critical national security programs.”

Source: company website · checked Sep 4, 2026
8
Paragon Systems INCPartial evidence
Herndon, VA, United StatesHQ checked Sep 4, 202610001+1,946

“Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…”

Source: company website · checked Sep 4, 2026
9
Government AcquisitionsPartial evidence
Cincinnati, OH, United StatesHQ checked Sep 4, 2026n/a1,439

“Government Acquisitions, LLC (GAI) stands at the forefront of a transformative era, where artificial intelligence is reshaping our world and the stakes have never been higher.”

Source: company website · checked Sep 4, 2026
10
Guidepoint SecurityPartial evidence
Reston, FL, United StatesHQ checked Sep 4, 20261,001-5,0001,234

“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.”

Source: company website · checked Sep 4, 2026
11
IEMIndirect evidence
Morrisville, LA, United StatesHQ checked Sep 4, 2026501-1,0001,173

“IEM is a professional services firm dedicated to building a safe, secure, and resilient world.”

Source: company website · checked Sep 4, 2026
12
SOS Security LLCPartial evidence
Parsippany, CA, United StatesHQ checked Sep 4, 202610001+1,148

“SOS Security is a known innovator and leader in the security and protective services industry.”

Source: company website · checked Sep 4, 2026
13
Andrews InternationalPartial evidence
Burbank, CA, United StatesHQ checked Sep 4, 202610001+1,084

“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: company website · checked Sep 4, 2026
14
Agile DefensePartial evidence
Mclean, AL, United StatesHQ checked Sep 4, 20261,001-5,0001,080

“Agile Defense: Always Evolving Agile Defense stands at the forefront of innovation, driving advanced capabilities and solutions tailored to the most critical national security and…”

Source: company website · checked Sep 4, 2026
15
Brosnan Risk ConsultantsPartial evidence
Pearl River, CA, United StatesHQ checked Sep 4, 20265,001-10,0001,047

“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…”

Source: company website · checked Sep 4, 2026
16
PPCIndirect evidence
Trevose, PA, United StatesHQ checked Sep 4, 2026201-500981

“PPC is now part of DSA”

Source: company website · checked Sep 4, 2026
17
The MIL CorporationIndirect evidence
Bowie, MD, United StatesHQ checked Sep 4, 2026501-1,000942

“Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.”

Source: company website · checked Sep 4, 2026
18
Tyto Athene, LLCIndirect evidence
Reston, VA, United StatesHQ checked Sep 4, 20261,001-5,000858

“At Tyto Athene, we help turn Data to Dominance.”

Source: company website · checked Sep 4, 2026
19
L-3 National Security SolutionsPartial evidence
Reston, VA, United StatesHQ checked Sep 4, 20261,001-5,000815

“L-3 National Security Solutions was acquired by CACI International Inc on February 1, 2016.”

Source: company website · checked Sep 4, 2026
20
BitsightPartial evidence
Boston, NC, United StatesHQ checked Sep 4, 2026501-1,000753

“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…”

Source: company website · checked Sep 4, 2026
21
Northeast Security INCPartial evidence
Westwood, MA, United StatesHQ checked Sep 4, 20261,001-5,000744

“Improving Security.”

Source: company website · checked Sep 4, 2026
22
RED RiverIndirect evidence
Chantilly, VA, United StatesHQ checked Sep 4, 2026501-1,000735

“Red River brings together the ideal combination of talent, partners and products to disrupt the status quo in technology and drive success for business and government in ways…”

Source: company website · checked Sep 4, 2026
23
STG INCPartial evidence
Reston, VA, United StatesHQ checked Sep 4, 20261,001-5,000699

“SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.”

Source: company website · checked Sep 4, 2026
24
Omniplex World Services CorporationStrong evidence
Herndon, VA, United StatesHQ checked Sep 4, 20261,001-5,000682

“OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…”

Source: company website · checked Sep 4, 2026
25
Telos CorporationPartial evidence
Ashburn, NV, United StatesHQ checked Sep 4, 2026501-1,000636

“Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.”

Source: company website · checked Sep 4, 2026

Showing 25 of 5,306 intelligence and security services based in the United States

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Intelligence and security services based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
WashingtonLargest hub · 199 HQs
70,675Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
2,667
11-50
1,646
51-200
673
201-500
173
501-1,000
59
1,001-5,000
56
5,001-10,000
8
10001+
10

Verified emails by last verification

0–30
0
31–60
3,115
61–90
19,153
90–180
13,127
180+
1,623

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 and security services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “intelligence and security services”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among intelligence and security services, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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 an evidence 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, 37,018 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 4, 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 and security services by metro

Frequently asked

How many intelligence and security services are there based in the United States?

RevenueBase identified 5,306 intelligence and security services headquartered in the United States 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?

General Dynamics Information Technology, headquartered in Falls Church, tops this list with the largest team on record.

Which city has the most intelligence and security services?

Washington leads with 199 headquartered companies, followed by New York (159) and Houston (95).

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 37,018 verified decision-maker contacts tracked across these 5,306 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 4, 2026.

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Related lists

Browse: Companies home · All United States lists · All Intelligence and security services lists · New lists

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 SmartSearch, 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.

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