Company lists · Data refreshed November 2026

Top 25 Security clearance staffing agencies based in the United States

RevenueBase identified 1,564 company matches for security clearance staffing agencies associated with the United States as of November 2026 and tracks 37,511 professional contacts across them, including 5,122 with verified work emails. New York is the largest hub.

This list covers company matches for security clearance staffing agencies 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 November 5, 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 Nov 5, 2026 How this list was built
1,564Companies
37,511Contacts tracked
5,122Verified emails
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The 25 largest security clearance staffing agencies based in the United States

Ranked by team size
Top 25 of 1,564 company matches for security clearance staffing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchPlymouth, MI, United StatesHQ recorded Nov 5, 20261,001-5,0001,594 contacts →

Exact match

“Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchGreenville, United StatesHQ recorded Nov 5, 2026201-5001,274 contacts →

Exact match

“TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 5, 2026501-1,000973 contacts →

Exact match

“Max International is a trusted US staffing and recruitment firm committed to connecting top-tier talent with leading organizations across the United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNew York, VA, United StatesHQ recorded Nov 5, 20261,001-5,000813 contacts →

Exact match

“Genesis10 connects companies and professionals through every stage of the hiring journey.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSterling, GA, United StatesHQ recorded Nov 5, 20261,001-5,000787 contacts →

Exact match

“Headquartered in Washington DC Metro Area, Cynet Systems is a top talent supplier for companies across North America.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchHerndon, VA, United StatesHQ recorded Nov 5, 20261,001-5,000696 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchIrvine, CA, United StatesHQ recorded Nov 5, 2026201-500554 contacts →

Exact match

“CyberCoders, a division of ASGN Incorporated, is a leading permanent placement recruiting firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMillersville, MD, United StatesHQ recorded Nov 5, 2026501-1,000505 contacts →

Exact match

“A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchCentennial, CO, United StatesHQ recorded Nov 5, 202651-200498 contacts →

Exact match

“ClearanceJobs.com the largest security-cleared career network, specializes in defense jobs for professionals with security clearances.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchWestchester, IL, United StatesHQ recorded Nov 5, 202651-200447 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchOverland Park, KS, United StatesHQ recorded Nov 5, 202651-200402 contacts →

Exact match

“Simply put, MCG is a full service IT staffing firm…locally owned and operated with offices in Overland Park, KS and Dallas, TX.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSunrise, FL, United StatesHQ recorded Nov 5, 2026201-500377 contacts →

Exact match

“Since 1983, StevenDouglas has established itself as a recognized leader in providing access to top talent, driven by highly tenured and experienced professionals committed to…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Nov 5, 2026n/a366 contacts →

Exact match

“Founded in 1989, The Midtown Group pioneers 360-degree staffing services and solutions for organizations across both public and private sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNewport News, VA, United StatesHQ recorded Nov 5, 2026201-500359 contacts →

Exact match

“CTR Group provides staffing and recruiting services across the United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNew York, OH, United StatesHQ recorded Nov 5, 2026201-500335 contacts →

Exact match

“For over 50 years, TBG has stood as a leader in the staffing and recruiting industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchWeston, FL, United StatesHQ recorded Nov 5, 202651-200290 contacts →

Exact match

“LINKING TOP TALENT WITH BUSINESSES TO FUEL GROWTH AND SUCCESS For over 20 years, we’ve connected skilled professionals with organizations in Finance, Accounting, Real Estate…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchOverland Park, TN, United StatesHQ recorded Nov 5, 20261,001-5,000265 contacts →

Exact match

“Nextaff helps companies recruit, screen and hire quality employees using our proprietary X-FACTOR method.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchSterling, VA, United StatesHQ recorded Nov 5, 2026201-500265 contacts →

Exact match

“From defense to civilian agencies, we provide staffing solutions that meet the demands of federal, local and state agencies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchWest Conshohocken, PA, United StatesHQ recorded Nov 5, 202651-200263 contacts →

Exact match

“Liberty Personnel is widely recognized as the finest direct placement and contract recruiting firm in the region.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchAnnapolis, MD, United StatesHQ recorded Nov 5, 2026501-1,000251 contacts →

Exact match

“At Corporate Brokers, we love Monday mornings.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchOakland, CA, United StatesHQ recorded Nov 5, 2026n/a247 contacts →

Exact match

“Founded in 1996, SVS Group was recently ranked among the Bay area's fastest-growing companies by the San Francisco Business Times.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchEagan, MN, United StatesHQ recorded Nov 5, 2026501-1,000240 contacts →

Exact match

“C4 Technical Services knows the right people in IT and Telecom C4 Technical Services earns the trust of our clients and candidates by understanding the needs of both, matching…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchBradenton, CA, United StatesHQ recorded Nov 5, 202651-200220 contacts →

Exact match

“TAG PGS, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchRockledge, FL, United StatesHQ recorded Nov 5, 20261,001-5,000214 contacts →

Exact match

“Luke & Associates (Luke) is a trusted provider of healthcare and professional services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchDallas, TX, United StatesHQ recorded Nov 5, 20261,001-5,000211 contacts →

Exact match

“Paladin Consulting is a nationwide Talent Acquisition and Placement consulting firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,564 security clearance staffing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 5,122 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security clearance staffing agencies based in the United States at a glance

As of Nov 5, 2026
13.7%Verified-email coverage
24.0Average contacts per company
11-50Median size (employees)
3.6%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
710
11-50
492
51-200
226
201-500
83
501-1,000
27
1,001-5,000
22
5,001-10,000
2
10001+
2

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 1,564 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 “security clearance staffing agencies” 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 5,122 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 November 5, 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 “security clearance staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security clearance staffing agencies are there based in the United States?

RevenueBase identified 1,564 company matches for security clearance staffing agencies associated with the United States as of November 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?

Infotree Global Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most security clearance staffing agencies?

New York leads with 56 company records, followed by Houston (38) and Atlanta (31).

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 5,122 professional contacts with verified work emails tracked across these 1,564 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 November 5, 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.