Company lists · Data refreshed September 2026

Top 25 Federal human resources staffing companies based in the United States

Name: Federal human resources 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 7,380 companies tracked

RevenueBase identified 7,380 federal human resources staffing companies headquartered in the United States as of September 2026 and tracks 248,315 professional contacts across them, including 37,963 with verified work emails. New York is the largest hub.

This list covers federal human resources 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

7,380Companies

248,315Contacts tracked

37,963Verified emails

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The 25 largest federal human resources staffing companies based in the United States

Ranked by team size

Top 25 of 7,380 federal human resources 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 human resources 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	Express Employment International	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 28, 2026	10001+	12,647 contacts →
	Indirect evidence “Founded in 1983 and corporately headquartered in Oklahoma City, Express Employment International supports the Express Employment Professionals franchise and related brands.” Source: RevenueBase Database · checked Sep 28, 2026
2	Randstad USA	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	8,522 contacts →
	Indirect evidence “Randstad North America, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
3	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
4	Spherion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	10001+	4,263 contacts →
	Partial evidence “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Source: RevenueBase Database · checked Sep 28, 2026
5	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
6	Beacon Hill	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,238 contacts →
	Partial evidence “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Source: RevenueBase Database · checked Sep 28, 2026
7	CSI Companies	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	n/a	2,120 contacts →
	Indirect evidence “Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Source: RevenueBase Database · checked Sep 28, 2026
8	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
9	Remedy Intelligent Staffing	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	10001+	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 28, 2026
10	Chenega Corporation	Indirect evidence	Anchorage, AK, United StatesHQ checked Sep 28, 2026	5,001-10,000	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 28, 2026
11	Addison Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,840 contacts →
	Partial evidence “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: RevenueBase Database · checked Sep 28, 2026
12	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
13	Labormax Staffing	Partial evidence	Kearney, MO, United StatesHQ checked Sep 28, 2026	n/a	1,755 contacts →
	Partial evidence “LaborMAX Staffing is your reliable provider of quality pre-screened contingent workers.” Source: RevenueBase Database · checked Sep 28, 2026
14	Surge Staffing	Partial evidence	Columbus, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,622 contacts →
	Partial evidence “For over 57 years, Surge has been a national leader in staffing solutions, workforce management and workforce program solutions.” Source: RevenueBase Database · checked Sep 28, 2026
15	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 28, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 28, 2026
16	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
17	ALKU	Partial evidence	Andover, MA, United StatesHQ checked Sep 28, 2026	201-500	1,480 contacts →
	Partial 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
18	SELF	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	n/a	1,431 contacts →
	Indirect evidence “We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…” Source: RevenueBase Database · checked Sep 28, 2026
19	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
20	Coworx Staffing Services	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 28, 2026	201-500	1,286 contacts →
	Partial evidence “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
21	Ultimate Staffing	Partial evidence	Orange, CA, United StatesHQ checked Sep 28, 2026	501-1,000	1,196 contacts →
	Partial evidence “Meet Ultimate Staffing: Ultimate Staffing Services, a business line of Roth Staffing Companies, specializes in delivering temporary, temporary-to-hire, and direct hire services…” Source: RevenueBase Database · checked Sep 28, 2026
22	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
23	247hire	Indirect evidence	Oak Brook, IL, United StatesHQ checked Sep 28, 2026	201-500	1,059 contacts →
	Indirect evidence “At 247Hire, our mission is simple: to empower yours.” Source: RevenueBase Database · checked Sep 28, 2026
24	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
25	Hire Dynamics	Indirect evidence	Duluth, GA, United StatesHQ checked Sep 28, 2026	201-500	1,002 contacts →
	Indirect evidence “Opportunities.” 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 human resources 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 human resources staffing companies.
Partial evidence: Its own public description names part of federal human resources 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 human resources 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 7,380 federal human resources staffing companies based in the United States

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Federal human resources staffing companies based in the United States at a glance

As of Sep 28, 2026

15.3%Verified-email coverage

33.6Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,082

11-50

2,121

51-200

1,282

201-500

490

501-1,000

171

1,001-5,000

162

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 7,380 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 human resources 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 human resources 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 human resources 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 human resources 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, 37,963 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 human resources 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 human resources 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 human resources staffing companies are there based in the United States?

RevenueBase identified 7,380 federal human resources 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?

Express Employment International, headquartered in Oklahoma City, tops this list with the largest team on record.

Which city has the most federal human resources staffing companies?

New York leads with 221 headquartered companies, followed by Houston (220) and Atlanta (162).

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 37,963 verified decision-maker contacts tracked across these 7,380 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.