Company lists · Data refreshed September 2026

Top 25 Staff augmentation companies based in the United States

Name: Staff augmentation 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 22, 2026 8,644 companies tracked

RevenueBase identified 8,644 company matches for staff augmentation companies associated with the United States as of September 2026 and tracks 393,264 professional contacts across them, including 53,042 with verified work emails. New York is the largest hub.

This list covers company matches for staff augmentation 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 22, 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 22, 2026 How this list was built

8,644Companies

393,264Contacts tracked

53,042Verified emails

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The 25 largest staff augmentation companies based in the United States

Ranked by team size

Top 25 of 8,644 company matches for staff augmentation companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	KELLY	Exact match	Troy, MI, United StatesHQ recorded Sep 22, 2026	10001+	30,378 contacts →
	Exact match “We’ve been helping organizations find the people they need longer than any other company in the world.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	Manpower	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 22, 2026	10001+	22,508 contacts →
	Exact match “Manpower is the global leader in contingent and permanent recruitment workforce solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	Express Employment International	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 22, 2026	10001+	12,647 contacts →
	Exact match “Founded in 1983 and corporately headquartered in Oklahoma City, Express Employment International supports the Express Employment Professionals franchise and related brands.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	8,522 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	Tradesmen International	Exact match	Macedonia, OH, United StatesHQ recorded Sep 22, 2026	10001+	4,999 contacts →
	Exact match “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	Appleone Employment Services	Exact match	Glendale, CA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	4,627 contacts →
	Exact match “AppleOne Employment Services is a full-service employment company.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7	Spherion	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	10001+	4,263 contacts →
	Exact match “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	Select Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	10001+	3,934 contacts →
	Exact match “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9	Artech L.L.C	Exact match	Morristown, NJ, United StatesHQ recorded Sep 22, 2026	5,001-10,000	3,674 contacts →
	Exact match “Artech is the largest Women-Owned IT Staffing Firm in the U.S, with 34+ years of experience powering workforce transformation for Fortune 500 companies and public-sector…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	Elwood Staffing Services, INC	Exact match	Columbus, IN, United StatesHQ recorded Sep 22, 2026	n/a	3,481 contacts →
	Exact match “Whether you're looking to find your next great employee, make your next career move, or help a friend find a new job, you can trust that Elwood puts its passion and expertise into…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	Beacon Hill	Exact match	Boston, MA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	3,238 contacts →
	Exact match “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12	Dexian	Exact match	Mclean, VA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,852 contacts →
	Exact match “Dexian is a leading provider of staffing, IT, and workforce solutions with nearly employees and 70 locations worldwide.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	Staff Management SMX	Exact match	Chicago, IL, United StatesHQ recorded Sep 22, 2026	501-1,000	2,680 contacts →
	Exact match “Founded in 1988, Staff Management is a recognized leader of comprehensive workforce solutions that deliver best talent, drive compliance, yield tangible savings and build…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Oxford Global Resources	Exact match	Beverly, MA, United StatesHQ recorded Sep 22, 2026	501-1,000	2,564 contacts →
	Exact match “Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Trueblue INC	Exact match	Tacoma, WA, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,148 contacts →
	Exact match “TrueBlue (NYSE: TBI) is a leading provider of specialized workforce solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16	CSI Companies	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 22, 2026	n/a	2,120 contacts →
	Exact match “Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	Mindlance	Exact match	Union, NJ, United StatesHQ recorded Sep 22, 2026	1,001-5,000	2,096 contacts →
	Exact match “Mindlance is a global Talent, Teams, Projects, and Workforce Solutions partner, serving leading enterprises across industries since With a strong footprint across multiple…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	Rose International	Exact match	Chesterfield, MO, United StatesHQ recorded Sep 22, 2026	5,001-10,000	2,061 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19	Remedy Intelligent Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 22, 2026	10001+	1,948 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	Spectraforce	Exact match	Raleigh, NC, United StatesHQ recorded Sep 22, 2026	1,001-5,000	1,845 contacts →
	Exact match “Founded in 2004, SPECTRAFORCE® is a global staffing and workforce solutions company that helps organizations build high-performing teams across healthcare, technology, financial…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Addison Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 22, 2026	1,001-5,000	1,840 contacts →
	Exact match “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Labormax Staffing	Exact match	Kearney, MO, United StatesHQ recorded Sep 22, 2026	n/a	1,755 contacts →
	Exact match “LaborMAX Staffing is your reliable provider of quality pre-screened contingent workers.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23	MEDIX	Exact match	Chicago, IL, United StatesHQ recorded Sep 22, 2026	501-1,000	1,753 contacts →
	Exact match “Medix provides workforce solutions to clients and creates opportunity for talent in the Healthcare, Life Sciences, Engineering and Technology fields.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24	Prolink	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 22, 2026	501-1,000	1,751 contacts →
	Exact match “We are here to solve your existing problems and prevent new ones.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25	Elite Staffing INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 22, 2026	10001+	1,661 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “staff augmentation companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,644 staff augmentation companies based in the United States

See the full list, filter by size, metro and specialty, and access 53,042 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Staff augmentation companies based in the United States at a glance

As of Sep 22, 2026

13.5%Verified-email coverage

45.5Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,927

11-50

2,685

51-200

1,835

201-500

620

501-1,000

271

1,001-5,000

212

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 8,644 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 “staff augmentation 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 53,042 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 22, 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.

Staff augmentation companies by metro

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 “staff augmentation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many staff augmentation companies are there based in the United States?

RevenueBase identified 8,644 company matches for staff augmentation 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?

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

Which city has the most staff augmentation companies?

New York leads with 285 company records, followed by Houston (265) and Dallas (161).

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 53,042 professional contacts with verified work emails tracked across these 8,644 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 22, 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.