Company lists · Data refreshed September 2026
Top 25 Clearance recruiting agencies worldwide
RevenueBase identified 3,234 clearance recruiting agencies worldwide as of September 2026 and tracks 73,489 professional contacts across them, including 11,223 with verified work emails. The United States is the largest market and London the largest hub.
This list covers clearance recruiting agencies 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 clearance recruiting agencies 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 clearance recruiting agencies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 10,793 contacts → | ||||
Indirect evidence “At Peraton, we're at the forefront of delivering the next big thing every day.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9,697 contacts → | ||||
Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,948 contacts → | ||||
Partial evidence “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,853 contacts → | ||||
Indirect evidence “As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,386 contacts → | ||||
Partial evidence “System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 732 contacts → | ||||
Indirect evidence “Headquartered in Washington DC Metro Area, Cynet Systems is a top talent supplier for companies across North America.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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. | |||||
| 8 | 597 contacts → | ||||
Indirect evidence “Started in 2012, ARS is a growing business serving the Department of Defense and Intelligence Community.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 543 contacts → | ||||
Indirect evidence “STS Technical Services is a Top 100 Staffing Firm that’s partnered with some of the largest names in the aerospace, manufacturing, defense and industrial industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 541 contacts → | ||||
Partial evidence “A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 433 contacts → | ||||
Partial evidence “ClearanceJobs.com the largest security-cleared career network, specializes in defense jobs for professionals with security clearances.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 410 contacts → | ||||
Indirect evidence “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 410 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 389 contacts → | ||||
Indirect evidence “Softworld has developed expertise across five distinct staffing and consulting practices over the past 25 years.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 388 contacts → | ||||
Indirect evidence “Simply put, MCG is a full service IT staffing firm…locally owned and operated with offices in Overland Park, KS and Dallas, TX.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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. | |||||
| 17 | 372 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 369 contacts → | ||||
Indirect evidence “Vivid Resourcing, a leading international talent solutions partner, connects you with in-demand technical professionals you need to flourish in the Tech, Engineering, Life…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 338 contacts → | ||||
Indirect evidence “For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 337 contacts → | ||||
Partial evidence “CTR Group provides staffing and recruiting services across the United States.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 327 contacts → | ||||
Indirect evidence “Founded in 1989, The Midtown Group pioneers 360-degree staffing services and solutions for organizations across both public and private sectors.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 326 contacts → | ||||
Indirect evidence “Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 319 contacts → | ||||
Partial evidence “For over 50 years, TBG has stood as a leader in the staffing and recruiting industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 316 contacts → | ||||
Indirect evidence “Public Sector People (PSP) as part of Search4, is a leading Australian recruitment agency specialising in delivering permanent and temporary solutions across the Public Sector…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 313 contacts → | ||||
Indirect evidence 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: clearance recruiting agencies. 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 clearance recruiting agencies.
- Partial evidence
- Its own public description names part of clearance recruiting agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clearance recruiting agencies. 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 3,234 clearance recruiting agencies worldwide
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Clearance recruiting agencies 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 clearance recruiting agencies, 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 clearance recruiting agencies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “clearance recruiting agencies”. 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 clearance recruiting agencies), 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 clearance recruiting agencies, 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, 11,223 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.
Clearance recruiting agencies by location
13 lists · largest firstEvery Clearance recruiting agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Clearance recruiting agencies based in the United States1,726
- Clearance recruiting agencies based in the United Kingdom212
- Clearance recruiting agencies based in India158
- Clearance recruiting agencies based in Australia94
- Clearance recruiting agencies based in Canada93
- Clearance recruiting agencies based in the Netherlands79
- Clearance recruiting agencies based in Germany58
Cities
- Clearance recruiting agencies based in New York, United States54
- Clearance recruiting agencies based in Washington, United States47
- Clearance recruiting agencies based in Atlanta, United States41
- Clearance recruiting agencies based in Houston, United States35
- Clearance recruiting agencies based in Austin, United States30
- Clearance recruiting agencies based in Dallas, United States25
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 clearance recruiting agencies, 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 clearance recruiting agencies are there worldwide?
RevenueBase identified 3,234 clearance recruiting agencies 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?
Peraton, headquartered in Reston, tops this list with the largest team on record.
Which country has the most clearance recruiting agencies?
The United States leads with 1,726 companies, followed by the United Kingdom (212) and India (158). Every clearance recruiting agencies list by country and city is linked on this page.
Which city has the most clearance recruiting agencies?
London leads with 66 headquartered companies, followed by New York (54) and Washington (48).
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 11,223 verified decision-maker contacts tracked across these 3,234 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.