Company lists · Data refreshed September 2026

Top 25 IT staffing firms based in the United States

Name: IT staffing firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 21,563 companies tracked

RevenueBase identified 21,563 IT staffing firms headquartered in the United States as of September 2026 and tracks 683,789 professional contacts across them, including 105,023 with verified work emails and 166,553 with mobile numbers. New York is the largest hub.

This list covers IT staffing 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

21,563Companies

683,789Contacts tracked

105,023Verified emails

166,553Mobile numbers

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The 25 largest IT staffing firms based in the United States

Ranked by team size

Top 25 of 21,563 IT staffing firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT staffing firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	KELLYIndirect evidence	Troy, TN, United StatesHQ checked Sep 4, 2026	10001+	30,343
	“We’ve been helping organizations find the people they need longer than any other company in the world.” Source: company website · checked Sep 4, 2026
2	ManpowerIndirect evidence	Milwaukee, PA, United StatesHQ checked Sep 4, 2026	10001+	22,476
	“Manpower is the global leader in contingent and permanent recruitment workforce solutions.” Source: company website · checked Sep 4, 2026
3	Insight GlobalIndirect evidence	Atlanta, CT, United StatesHQ checked Sep 4, 2026	n/a	15,381
	“Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Source: company website · checked Sep 4, 2026
4	Express Employment InternationalIndirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 4, 2026	10001+	12,667
	“Founded in 1983 and corporately headquartered in Oklahoma City, Express Employment International supports the Express Employment Professionals franchise and related brands.” Source: company website · checked Sep 4, 2026
5	Randstad USAIndirect evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	1,001-5,000	8,538
	“Randstad North America, Inc.” Source: company website · checked Sep 4, 2026
6	ExperisIndirect evidence	Milwaukee, GA, United StatesHQ checked Sep 4, 2026	10001+	7,981
	“Experis® is a global leader in technology services, helping organizations shorten the distance between innovation and business impact in a digital world.” Source: company website · checked Sep 4, 2026
7	Kforce INCPartial evidence	Tampa, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	6,171
	“Kforce is a solutions firm specializing in technology, finance and accounting, and professional staffing services.” Source: company website · checked Sep 4, 2026
8	PeoplereadyIndirect evidence	Tacoma, WA, United StatesHQ checked Sep 4, 2026	10001+	5,500
	“Want to be part of an award-winning team that is reimagining the way people connect with work?” Source: company website · checked Sep 4, 2026
9	Tradesmen InternationalIndirect evidence	Macedonia, OH, United StatesHQ checked Sep 4, 2026	10001+	5,034
	“Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Source: company website · checked Sep 4, 2026
10	VOLTIndirect evidence	Atlanta, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,821
	“Volt (an Innova Solutions affiliate) is a multi-award winning global workforce solutions provider that propels businesses and careers forward with expert momentum.” Source: company website · checked Sep 4, 2026
11	Appleone Employment ServicesIndirect evidence	Glendale, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,615
	“AppleOne Employment Services is a full-service employment company.” Source: company website · checked Sep 4, 2026
12	SpherionPartial evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	4,265
	“We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Source: company website · checked Sep 4, 2026
13	Select StaffingPartial evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	3,928
	“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: company website · checked Sep 4, 2026
14	Artech L.L.CStrong evidence	Morristown, CA, United StatesHQ checked Sep 4, 2026	5,001-10,000	3,642
	“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: company website · checked Sep 4, 2026
15	Elwood Staffing Services, INCIndirect evidence	Columbus, UT, United StatesHQ checked Sep 4, 2026	n/a	3,486
	“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: company website · checked Sep 4, 2026
16	Beacon HillPartial evidence	Boston, ID, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,195
	“Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Source: company website · checked Sep 4, 2026
17	Randstad Digital AmericasIndirect evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	2,766
	“Randstad Digital is a trusted digital enablement partner that facilitates accelerated transformation for businesses by providing global talent, capacity, and solutions across…” Source: company website · checked Sep 4, 2026
18	Compunnel INCIndirect evidence	Princeton, United StatesHQ checked Sep 4, 2026	5,001-10,000	2,568
	“Compunnel serves as a global partner for talent, digital, and cybersecurity solutions, designed to help enterprises staff critical roles, modernize technology, and strengthen…” Source: company website · checked Sep 4, 2026
19	Oxford Global ResourcesIndirect evidence	Beverly, VA, United StatesHQ checked Sep 4, 2026	501-1,000	2,561
	“Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach.” Source: company website · checked Sep 4, 2026
20	24 Seven TalentIndirect evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	n/a	2,539
	“24 Seven partners with companies to get marketing, creative, and digital work done by providing the right talent, innovation, and insights.” Source: company website · checked Sep 4, 2026
21	The Judge GroupIndirect evidence	Wayne, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,196
	“The Judge Group is an international leader in business technology consulting, talent solutions, and learning and development.” Source: company website · checked Sep 4, 2026
22	Trueblue INCIndirect evidence	Tacoma, WA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,153
	“TrueBlue (NYSE: TBI) is a leading provider of specialized workforce solutions.” Source: company website · checked Sep 4, 2026
23	MindlanceIndirect evidence	Union, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,110
	“Mindlance is a global Talent, Teams, Projects, and Workforce Solutions partner, serving leading enterprises across industries since With a strong footprint across multiple…” Source: company website · checked Sep 4, 2026
24	CSI CompaniesIndirect evidence	Jacksonville, TN, United StatesHQ checked Sep 4, 2026	n/a	2,102
	“Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Source: company website · checked Sep 4, 2026
25	Rose InternationalPartial evidence	Chesterfield, MO, United StatesHQ checked Sep 4, 2026	5,001-10,000	2,077
	“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: company website · checked Sep 4, 2026

Showing 25 of 21,563 IT staffing firms based in the United States

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IT staffing firms based in the United States at a glance

As of Sep 4, 2026

11-50Median size (employees)

New YorkLargest hub · 879 HQs

166,553Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

9,304

11-50

6,670

51-200

3,669

201-500

1,079

501-1,000

389

1,001-5,000

285

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

8,688

61–90

56,217

90–180

38,825

180+

1,293

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 IT staffing firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “IT staffing firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT staffing 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 an evidence 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, 105,023 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 4, 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.

IT staffing firms by metro

Frequently asked

How many IT staffing firms are there based in the United States?

RevenueBase identified 21,563 IT staffing 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?

KELLY, headquartered in Memphis, tops this list with the largest team on record.

Which city has the most IT staffing firms?

New York leads with 879 headquartered companies, followed by Houston (588) and Dallas (450).

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 105,023 verified decision-maker contacts tracked across these 21,563 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 4, 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.