Company lists · Data refreshed September 2026

Top 25 Private intelligence companies based in the United States

RevenueBase identified 1,013 company matches for private intelligence companies associated with the United States as of September 2026 and tracks 21,296 professional contacts across them, including 3,723 with verified work emails. New York is the largest hub.

This list covers company matches for private intelligence companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
1,013Companies
21,296Contacts tracked
3,723Verified emails
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The 25 largest private intelligence companies based in the United States

Ranked by team size
Top 25 of 1,013 company matches for private intelligence companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAlexandria, VA, United StatesHQ recorded Sep 21, 20261,001-5,0002,092 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchHerndon, VA, United StatesHQ recorded Sep 21, 202610001+1,949 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchBurbank, CA, United StatesHQ recorded Sep 21, 202610001+1,081 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchPearl River, NY, United StatesHQ recorded Sep 21, 20265,001-10,0001,050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchHerndon, VA, United StatesHQ recorded Sep 21, 20261,001-5,000677 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchGrand Rapids, MI, United StatesHQ recorded Sep 21, 20261,001-5,000572 contacts →

Exact match

“DK Security is unique in that it offers a single company for a wide ranging availability of security and investigative services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202610001+571 contacts →

Exact match

“Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchMiami, FL, United StatesHQ recorded Sep 21, 20261,001-5,000553 contacts →

Exact match

“Security Alliance is a highly experienced provider of security solutions for private and business environments.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchRed Bank, NJ, United StatesHQ recorded Sep 21, 20261,001-5,000416 contacts →

Exact match

“United Security Inc.(USI) provides personalized security solutions enhanced by advanced technology and cyber services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchAnnapolis, MD, United StatesHQ recorded Sep 21, 2026201-500350 contacts →

Exact match

“Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchHunt Valley, MD, United StatesHQ recorded Sep 21, 2026201-500338 contacts →

Exact match

“For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchHuntsville, AL, United StatesHQ recorded Sep 21, 2026201-500338 contacts →

Exact match

“Sentar, an employee-owned company, is a leading cyber-intelligence solutions provider focused on the National Security sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchArlington, VA, United StatesHQ recorded Sep 21, 202651-200303 contacts →

Exact match

“Dexis is a mission-driven security analytics company that helps U.S.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 21, 2026201-500273 contacts →

Exact match

“Babel Street delivers mission-grade risk intelligence for organizations across government, defense, and the private sector to expose hidden identities, secure vendor networks, and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchKirkland, WA, United StatesHQ recorded Sep 21, 2026201-500271 contacts →

Exact match

“We are experts in protecting what matters most.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026201-500265 contacts →

Exact match

“Flashpoint is the leader in threat data and intelligence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSan Antonio, TX, United StatesHQ recorded Sep 21, 20265,001-10,000231 contacts →

Exact match

“Full Service Security and Investigative company serving the government sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026201-500216 contacts →

Exact match

“T&M USA provides seamlessly integrated executive protection, investigative and consulting services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchReston, VA, United StatesHQ recorded Sep 21, 20261,001-5,000172 contacts →

Exact match

“ASP is a premium contract security services company based in Northern Virginia and a wholly owned subsidiary of SecurAmerica.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 21, 202651-200162 contacts →

Exact match

“TDI is a leading global advisory and risk intelligence firm delivering strategic insight, due diligence & investigations, and SaaS solutions across industries and geographies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchDaniel Island, SC, United StatesHQ recorded Sep 21, 2026501-1,000160 contacts →

Exact match

“In a eld that is highly competitive, Diversified Protection Corporation (DPC) is a spirited company effectively providing superior security services to federal and commercial…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026501-1,000159 contacts →

Exact match

“Silverseal is a comprehensive security solutions firm with worldwide affiliations that can provide global security services in a highly professional manner.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchEspanola, NM, United StatesHQ recorded Sep 21, 2026201-500151 contacts →

Exact match

“Coastal International Security provides strategic planning and security services to high-impact government agencies such as the Department of State, Homeland Security and Defense…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchReston, VA, United StatesHQ recorded Sep 21, 202651-200139 contacts →

Exact match

“Our goal is to create and maintain safe environments by providing threat analysis, protection, investigations, consulting, intelligence and security training services everywhere…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSterling, VA, United StatesHQ recorded Sep 21, 2026201-500126 contacts →

Exact match

“Our mission is to be at the forefront of devising analytical, operational and technical solutions to the most complex national security challenges by delivering superior advice…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 1,013 private intelligence companies based in the United States

See the full list, filter by size, metro and specialty, and access 3,723 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Private intelligence companies based in the United States at a glance

As of Sep 21, 2026
17.5%Verified-email coverage
21.0Average contacts per company
11-50Median size (employees)
6.4%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
497
11-50
320
51-200
131
201-500
35
501-1,000
8
1,001-5,000
12
5,001-10,000
4
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,013 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “private intelligence companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,723 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “private intelligence companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many private intelligence companies are there based in the United States?

RevenueBase identified 1,013 company matches for private intelligence companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Systems Planning & Analysis tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most private intelligence companies?

New York leads with 65 company records, followed by Washington (52) and Miami (24).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,723 professional contacts with verified work emails tracked across these 1,013 companies; direct dials are available where recorded.

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 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.