Company lists · Data refreshed September 2026

Top 25 Federal contractor staffing companies based in the United States

Name: Federal contractor staffing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,858 companies tracked

RevenueBase identified 1,858 federal contractor staffing companies headquartered in the United States as of September 2026 and tracks 88,206 professional contacts across them, including 14,401 with verified work emails. New York is the largest hub.

This list covers federal contractor staffing companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

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 28, 2026 86% judged on-target in blind review

1,858Companies

88,206Contacts tracked

14,401Verified emails

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The 25 largest federal contractor staffing companies based in the United States

Ranked by team size

Top 25 of 1,858 federal contractor staffing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to federal contractor staffing companies: 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	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 28, 2026
2	Appleone Employment Services	Indirect evidence	Glendale, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,627 contacts →
	Indirect evidence “AppleOne Employment Services is a full-service employment company.” Source: RevenueBase Database · checked Sep 28, 2026
3	Select Staffing	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	10001+	3,934 contacts →
	Partial evidence “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Source: RevenueBase Database · checked Sep 28, 2026
4	Rose International	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,061 contacts →
	Partial evidence “Rose International is a leading provider of Staffing and Total Talent Solutions to corporations and government agencies, employing thousands of people across the U.S, Canada and…” Source: RevenueBase Database · checked Sep 28, 2026
5	Chenega Corporation	Partial evidence	Anchorage, AK, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,853 contacts →
	Partial 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 28, 2026
6	Loyal Source Government Services	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,759 contacts →
	Indirect evidence “Loyal Source is an Orlando-based workforce solutions provider dedicated to delivering elite services worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
7	Infotree Global Solutions	Indirect evidence	Plymouth, MI, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,545 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	ALKU	Indirect evidence	Andover, MA, United StatesHQ checked Sep 28, 2026	201-500	1,480 contacts →
	Indirect evidence “ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…” Source: RevenueBase Database · checked Sep 28, 2026
9	System ONE	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	5,001-10,000	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 28, 2026
10	Construction Labor Contractors	Partial evidence	Round Rock, TX, United StatesHQ checked Sep 28, 2026	501-1,000	1,234 contacts →
	Partial evidence “Let us make construction staffing work for you.” Source: RevenueBase Database · checked Sep 28, 2026
11	TRS Staffing Solutions	Partial evidence	Greenville, United StatesHQ checked Sep 28, 2026	201-500	1,187 contacts →
	Partial evidence “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Source: RevenueBase Database · checked Sep 28, 2026
12	QPS Employment Group	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 28, 2026	201-500	1,019 contacts →
	Partial evidence “Founded in 1985, QPS Employment Group has grown from a two-person operation to one of the nation's leading staffing and recruiting firms, with more than 300 internal employees…” Source: RevenueBase Database · checked Sep 28, 2026
13	Remx The Workforce Experts	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	901 contacts →
	Partial evidence “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
14	Trojan Labor	Partial evidence	Goose Creek, SC, United StatesHQ checked Sep 28, 2026	n/a	732 contacts →
	Partial evidence “Trojan Labor Specializes in matching Customers who have industrial and Light Industrial staffing needs while never forgetting who the CUSTOMER is.” Source: RevenueBase Database · checked Sep 28, 2026
15	Varite INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	711 contacts →
	Indirect evidence “VARITE has a definite spirit.” Source: RevenueBase Database · checked Sep 28, 2026
16	Hirequest INC	Partial evidence	Goose Creek, SC, United StatesHQ checked Sep 28, 2026	n/a	683 contacts →
	Partial evidence “HireQuest is a leading franchisor of staffing and workforce solutions, serving communities across the United States and international markets.” Source: RevenueBase Database · checked Sep 28, 2026
17	Hx5, LLC	Partial evidence	Fort Walton Beach, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	673 contacts →
	Partial evidence “HX5, LLC has specialized in providing professional support services to meet the needs of Federal Government organizations since its incorporation in 2004.” Source: RevenueBase Database · checked Sep 28, 2026
18	Populus Group	Indirect evidence	Troy, MI, United StatesHQ checked Sep 28, 2026	n/a	636 contacts →
	Indirect evidence “Populus Group makes managing contingent workforces easier.” Source: RevenueBase Database · checked Sep 28, 2026
19	Automation Personnel Services, INC	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 28, 2026	10001+	624 contacts →
	Indirect evidence “Automation Personnel Services was founded in Birmingham, AL almost 30 years ago and has expanded coast to coast with 40 Branch offices in eleven states.” Source: RevenueBase Database · checked Sep 28, 2026
20	Hirequest Direct	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	n/a	618 contacts →
	Indirect evidence “HireQuest Direct specializes in day labor, general labor, disaster recovery, skilled labor, janitorial, site clean-up, composite crew, demolition, administrative, hospitality…” Source: RevenueBase Database · checked Sep 28, 2026
21	Link Staffing	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	579 contacts →
	Partial evidence “LINK Staffing has been placing competent, dependable talent with Texas employers since 1980.” Source: RevenueBase Database · checked Sep 28, 2026
22	Confident Staffing INC	Partial evidence	Medford, OR, United StatesHQ checked Sep 28, 2026	201-500	555 contacts →
	Partial evidence “We provide staffing services in Oregon and Washington and Direct Hire services nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
23	Tech USA	Partial evidence	Millersville, MD, United StatesHQ checked Sep 28, 2026	501-1,000	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 28, 2026
24	Labor Works	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 28, 2026	51-200	533 contacts →
	Indirect evidence “Labor Works is a leading, light industrial temporary labor company dedicated to: eliminating "No-Shows", recruiting quality industrial temporary workers and providing customer…” Source: RevenueBase Database · checked Sep 28, 2026
25	Exact Staff	Partial evidence	Calabasas, CA, United StatesHQ checked Sep 28, 2026	51-200	528 contacts →
	Partial evidence “Exact Staff, founded in 1996, has evolved into a national staffing leader, celebrated for winning the HIREVets Gold Award from the U.S.” Source: RevenueBase Database · checked Sep 28, 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: federal contractor staffing companies. 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 federal contractor staffing companies.
Partial evidence: Its own public description names part of federal contractor staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal contractor staffing companies. 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 1,858 federal contractor staffing companies based in the United States

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Federal contractor staffing companies based in the United States at a glance

As of Sep 28, 2026

16.3%Verified-email coverage

47.5Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

600

11-50

559

51-200

396

201-500

170

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,858 companies.

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 federal contractor staffing companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “federal contractor staffing companies”. 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 federal contractor staffing companies), 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 federal contractor staffing companies, 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 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, 14,401 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 28, 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.

Federal contractor staffing companies by metro

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 federal contractor staffing companies, 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 federal contractor staffing companies are there based in the United States?

RevenueBase identified 1,858 federal contractor staffing companies 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?

Mantech, headquartered in Herndon, tops this list with the largest team on record.

Which city has the most federal contractor staffing companies?

New York leads with 47 headquartered companies, followed by Washington (44) and Houston (42).

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 14,401 verified decision-maker contacts tracked across these 1,858 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 28, 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.