Company lists · Data refreshed September 2026
Top 25 Staff augmentation firms based in the United States
RevenueBase identified 7,903 staff augmentation firms headquartered in the United States as of September 2026 and tracks 331,434 professional contacts across them, including 47,139 with verified work emails. New York is the largest hub.
This list covers staff augmentation firms 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 22, 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.
The 25 largest staff augmentation firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,938 contacts → | ||||
Indirect evidence “Medical Solutions is an industry frontrunner, the third largest for healthcare staffing in the country (second largest in travel nursing and fourth largest in allied health).” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 5,482 contacts → | ||||
Indirect evidence “Want to be part of an award-winning team that is reimagining the way people connect with work?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,627 contacts → | ||||
Indirect evidence “AppleOne Employment Services is a full-service employment company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,263 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3,934 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3,674 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3,481 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 3,238 contacts → | ||||
Indirect evidence “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2,680 contacts → | ||||
Partial evidence “Founded in 1988, Staff Management is a recognized leader of comprehensive workforce solutions that deliver best talent, drive compliance, yield tangible savings and build…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2,148 contacts → | ||||
Indirect evidence “TrueBlue (NYSE: TBI) is a leading provider of specialized workforce solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2,061 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2,012 contacts → | ||||
Indirect evidence “CompHealth is one of the largest healthcare staffing companies in the United States offering permanent, locum tenens, travel and other placements for healthcare providers.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,948 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,840 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,755 contacts → | ||||
Indirect evidence “LaborMAX Staffing is your reliable provider of quality pre-screened contingent workers.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,751 contacts → | ||||
Indirect evidence “We are here to solve your existing problems and prevent new ones.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,661 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,639 contacts → | ||||
Indirect evidence “ResourceMFG places temporary and direct hire employees within the total spectrum of manufacturing jobs including production, quality, maintenance, supervision, and all levels of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,622 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,614 contacts → | ||||
Indirect evidence “Ōnin Staffing, a company of The Ōnin Group, is a national light industrial and clerical staffing agency.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,599 contacts → | ||||
Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,581 contacts → | ||||
Indirect evidence “Opportunity is everything.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 22, 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: staff augmentation firms. 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 staff augmentation firms.
- Partial evidence
- Its own public description names part of staff augmentation firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name staff augmentation firms. 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 7,903 staff augmentation firms based in the United States
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Staff augmentation firms based in the United States at a glance
As of Sep 22, 2026Companies by employee count
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 7,903 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 staff augmentation firms, 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 “staff augmentation firms”. 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 staff augmentation firms), 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 staff augmentation firms, 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, 47,139 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 22, 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.
Staff augmentation firms by metro
- Staff augmentation firms in New York246
- Staff augmentation firms in Houston224
- Staff augmentation firms in Atlanta154
- Staff augmentation firms in Dallas148
- Staff augmentation firms in Chicago113
- Staff augmentation firms in Austin105
- Staff augmentation firms in Los Angeles86
- Staff augmentation firms in Sheridan73
- Staff augmentation firms in Miami72
- Staff augmentation firms in Irving68
- Staff augmentation firms in Orlando62
- Staff augmentation firms in Charlotte60
- Staff augmentation firms in San Diego60
- Staff augmentation firms in Denver59
- Staff augmentation firms in Wilmington57
- Staff augmentation firms in Boston56
- Staff augmentation firms in Phoenix56
- Staff augmentation firms in Tampa52
- Staff augmentation firms in Indianapolis50
- Staff augmentation firms in San Antonio50
- Staff augmentation firms in Philadelphia44
- Staff augmentation firms in Plano42
- Staff augmentation firms in San Francisco42
- Staff augmentation firms in Columbus40
- Staff augmentation firms in Las Vegas37
- Staff augmentation firms in Oklahoma City37
- Staff augmentation firms in Dover36
- Staff augmentation firms in Washington36
- Staff augmentation firms in Irvine35
- Staff augmentation firms in Jacksonville35
- Staff augmentation firms in Raleigh35
- Staff augmentation firms in Alpharetta34
- Staff augmentation firms in Nashville34
- Staff augmentation firms in Pittsburgh34
- Staff augmentation firms in Cincinnati33
- Staff augmentation firms in Portland33
- Staff augmentation firms in Minneapolis32
- Staff augmentation firms in Greenville31
- Staff augmentation firms in Omaha31
- Staff augmentation firms in Fort Lauderdale30
- Staff augmentation firms in San Jose30
- Staff augmentation firms in Memphis29
- Staff augmentation firms in Baltimore28
- Staff augmentation firms in Edison27
- Staff augmentation firms in Scottsdale27
- Staff augmentation firms in Louisville26
- Staff augmentation firms in Newark26
- Staff augmentation firms in Richmond26
- Staff augmentation firms in Boca Raton25
- Staff augmentation firms in Seattle25
- Staff augmentation firms in Tulsa25
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 staff augmentation firms, 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 staff augmentation firms are there based in the United States?
RevenueBase identified 7,903 staff augmentation firms 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 staff augmentation firms?
New York leads with 246 headquartered companies, followed by Houston (224) and Atlanta (154).
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 47,139 verified decision-maker contacts tracked across these 7,903 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 7,903 staff augmentation firms based in the United States. Start with a free account, no credit card.
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Staff augmentation firms by geography
- Staff augmentation firms based in Brampton, Canada
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- Staff augmentation firms based in Ahmedabad, India
- Staff augmentation firms based in Bangalore, India
- Staff augmentation firms based in Bengaluru, India
- Staff augmentation firms based in Chennai, India
- Staff augmentation firms based in Hyderabad, India
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.
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