Company lists · Data refreshed September 2026
Top 25 Contingent search firms based in the United States
RevenueBase identified 8,620 contingent search firms headquartered in the United States as of September 2026 and tracks 246,156 professional contacts across them, including 35,700 with verified work emails. New York is the largest hub.
This list covers contingent search 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 19, 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 contingent search firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 25,574 contacts → | ||||
Indirect evidence “At Robert Half, we prioritize your security-if you believe you've encountered a scam or fraudulent recruiter, please report it immediately to All Robert Half recruiters…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 22,508 contacts → | ||||
Partial evidence “Manpower is the global leader in contingent and permanent recruitment workforce solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,627 contacts → | ||||
Indirect evidence “AppleOne Employment Services is a full-service employment company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,755 contacts → | ||||
Partial evidence “LaborMAX Staffing is your reliable provider of quality pre-screened contingent workers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,683 contacts → | ||||
Indirect evidence “We make it all about you.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,661 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,599 contacts → | ||||
Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1,286 contacts → | ||||
Indirect evidence “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,226 contacts → | ||||
Indirect evidence “Since 1951, Snelling has helped businesses grow and people find meaningful work.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,196 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,187 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,059 contacts → | ||||
Indirect evidence “At 247Hire, our mission is simple: to empower yours.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,019 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,002 contacts → | ||||
Indirect evidence “Opportunities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 973 contacts → | ||||
Indirect evidence “With over a decade of experience, we specialize in Finance, Accounting, Administrative, and Executive staffing markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 969 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: contingent search 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 contingent search firms.
- Partial evidence
- Its own public description names part of contingent search firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name contingent search 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 8,620 contingent search firms based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 35,700 reachable decision-makers.
Free signup · no credit card
Contingent search firms based in the United States at a glance
As of Sep 19, 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 8,620 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 contingent search 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 “contingent search 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 contingent search 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 contingent search 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, 35,700 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 19, 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.
Contingent search firms by metro
- Contingent search firms in New York409
- Contingent search firms in Houston251
- Contingent search firms in Dallas183
- Contingent search firms in Atlanta181
- Contingent search firms in Chicago179
- Contingent search firms in Los Angeles165
- Contingent search firms in Austin130
- Contingent search firms in Miami107
- Contingent search firms in San Francisco92
- Contingent search firms in Boston88
- Contingent search firms in Denver86
- Contingent search firms in Phoenix85
- Contingent search firms in Sheridan78
- Contingent search firms in Charlotte74
- Contingent search firms in Tampa73
- Contingent search firms in Orlando67
- Contingent search firms in San Diego67
- Contingent search firms in Philadelphia65
- Contingent search firms in Washington56
- Contingent search firms in Wilmington53
- Contingent search firms in Cincinnati50
- Contingent search firms in Columbus48
- Contingent search firms in San Antonio47
- Contingent search firms in Fort Lauderdale42
- Contingent search firms in Minneapolis42
- Contingent search firms in Irvine40
- Contingent search firms in Portland40
- Contingent search firms in Plano38
- Contingent search firms in Indianapolis37
- Contingent search firms in Nashville37
- Contingent search firms in Raleigh37
- Contingent search firms in Las Vegas36
- Contingent search firms in Pittsburgh35
- Contingent search firms in Richmond35
- Contingent search firms in Greenville34
- Contingent search firms in Irving31
- Contingent search firms in Seattle31
- Contingent search firms in Tulsa31
- Contingent search firms in Jacksonville30
- Contingent search firms in San Jose30
- Contingent search firms in Cleveland29
- Contingent search firms in Memphis29
- Contingent search firms in Scottsdale29
- Contingent search firms in Alpharetta28
- Contingent search firms in Dover28
- Contingent search firms in Omaha27
- Contingent search firms in Baltimore26
- Contingent search firms in Kansas City26
- Contingent search firms in Oklahoma City26
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 contingent search 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 contingent search firms are there based in the United States?
RevenueBase identified 8,620 contingent search 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?
Robert Half, headquartered in Menlo Park, tops this list with the largest team on record.
Which city has the most contingent search firms?
New York leads with 409 headquartered companies, followed by Houston (251) and Dallas (183).
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 35,700 verified decision-maker contacts tracked across these 8,620 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 8,620 contingent search firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Contingent search firms by geography
- Contingent search firms based in Brisbane, Australia
- Contingent search firms based in Melbourne, Australia
- Contingent search firms based in Perth, Australia
- Contingent search firms based in Sydney, Australia
- Contingent search firms based in Brampton, Canada
- Contingent search firms based in Calgary, Canada
- Contingent search firms based in Mississauga, Canada
- Contingent search firms based in Montreal, Canada
- Contingent search firms based in Toronto, Canada
- Contingent search firms based in Vancouver, Canada
- Contingent search firms based in Berlin, Germany
- Contingent search firms based in Hamburg, Germany
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Contingent search firms based in Brisbane, Australia
- Contingent search firms based in Melbourne, Australia
- Contingent search firms based in Perth, Australia
- Contingent search firms based in Sydney, Australia
- Contingent search firms based in Brampton, Canada
- Contingent search firms based in Calgary, Canada