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, its RevenueBase Smart Search rating, 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 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 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. RevenueBase Smart Search rates how each company's information relates to IT staffing firms: 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	KELLY	Indirect evidence	Troy, TN, United StatesHQ checked Sep 4, 2026	10001+	30,343 contacts →
	Indirect evidence “We’ve been helping organizations find the people they need longer than any other company in the world.” Source: RevenueBase Database · checked Sep 4, 2026
2	Manpower	Indirect evidence	Milwaukee, PA, United StatesHQ checked Sep 4, 2026	10001+	22,476 contacts →
	Indirect evidence “Manpower is the global leader in contingent and permanent recruitment workforce solutions.” Source: RevenueBase Database · checked Sep 4, 2026
3	Insight Global	Indirect evidence	Atlanta, CT, United StatesHQ checked Sep 4, 2026	n/a	15,381 contacts →
	Indirect evidence “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Source: RevenueBase Database · checked Sep 4, 2026
4	Express Employment International	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 4, 2026	10001+	12,667 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 4, 2026
5	Randstad USA	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	1,001-5,000	8,538 contacts →
	Indirect evidence “Randstad North America, Inc.” Source: RevenueBase Database · checked Sep 4, 2026
6	Experis	Indirect evidence	Milwaukee, GA, United StatesHQ checked Sep 4, 2026	10001+	7,981 contacts →
	Indirect evidence “Experis® is a global leader in technology services, helping organizations shorten the distance between innovation and business impact in a digital world.” Source: RevenueBase Database · checked Sep 4, 2026
7	Kforce INC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	6,171 contacts →
	Partial evidence “Kforce is a solutions firm specializing in technology, finance and accounting, and professional staffing services.” Source: RevenueBase Database · checked Sep 4, 2026
8	Peopleready	Indirect evidence	Tacoma, WA, United StatesHQ checked Sep 4, 2026	10001+	5,500 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 4, 2026
9	Tradesmen International	Indirect evidence	Macedonia, OH, United StatesHQ checked Sep 4, 2026	10001+	5,034 contacts →
	Indirect evidence “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Source: RevenueBase Database · checked Sep 4, 2026
10	VOLT	Indirect evidence	Atlanta, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,821 contacts →
	Indirect evidence “Volt (an Innova Solutions affiliate) is a multi-award winning global workforce solutions provider that propels businesses and careers forward with expert momentum.” Source: RevenueBase Database · checked Sep 4, 2026
11	Appleone Employment Services	Indirect evidence	Glendale, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,615 contacts →
	Indirect evidence “AppleOne Employment Services is a full-service employment company.” Source: RevenueBase Database · checked Sep 4, 2026
12	Spherion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	4,265 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 4, 2026
13	Select Staffing	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	3,928 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 4, 2026
14	Artech L.L.C	Strong evidence	Morristown, CA, United StatesHQ checked Sep 4, 2026	5,001-10,000	3,642 contacts →
	Strong 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 4, 2026
15	Elwood Staffing Services, INC	Indirect evidence	Columbus, UT, United StatesHQ checked Sep 4, 2026	n/a	3,486 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 4, 2026
16	Beacon Hill	Partial evidence	Boston, ID, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,195 contacts →
	Partial evidence “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Source: RevenueBase Database · checked Sep 4, 2026
17	Randstad Digital Americas	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 4, 2026	10001+	2,766 contacts →
	Indirect evidence “Randstad Digital is a trusted digital enablement partner that facilitates accelerated transformation for businesses by providing global talent, capacity, and solutions across…” Source: RevenueBase Database · checked Sep 4, 2026
18	Compunnel INC	Indirect evidence	Princeton, United StatesHQ checked Sep 4, 2026	5,001-10,000	2,568 contacts →
	Indirect evidence “Compunnel serves as a global partner for talent, digital, and cybersecurity solutions, designed to help enterprises staff critical roles, modernize technology, and strengthen…” Source: RevenueBase Database · checked Sep 4, 2026
19	Oxford Global Resources	Indirect evidence	Beverly, VA, United StatesHQ checked Sep 4, 2026	501-1,000	2,561 contacts →
	Indirect evidence “Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach.” Source: RevenueBase Database · checked Sep 4, 2026
20	24 Seven Talent	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	n/a	2,539 contacts →
	Indirect evidence “24 Seven partners with companies to get marketing, creative, and digital work done by providing the right talent, innovation, and insights.” Source: RevenueBase Database · checked Sep 4, 2026
21	The Judge Group	Indirect evidence	Wayne, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,196 contacts →
	Indirect evidence “The Judge Group is an international leader in business technology consulting, talent solutions, and learning and development.” Source: RevenueBase Database · checked Sep 4, 2026
22	Trueblue INC	Indirect evidence	Tacoma, WA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,153 contacts →
	Indirect evidence “TrueBlue (NYSE: TBI) is a leading provider of specialized workforce solutions.” Source: RevenueBase Database · checked Sep 4, 2026
23	Mindlance	Indirect evidence	Union, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,110 contacts →
	Indirect evidence “Mindlance is a global Talent, Teams, Projects, and Workforce Solutions partner, serving leading enterprises across industries since With a strong footprint across multiple…” Source: RevenueBase Database · checked Sep 4, 2026
24	CSI Companies	Indirect evidence	Jacksonville, TN, United StatesHQ checked Sep 4, 2026	n/a	2,102 contacts →
	Indirect evidence “Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Source: RevenueBase Database · checked Sep 4, 2026
25	Rose International	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 4, 2026	5,001-10,000	2,077 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 4, 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: IT staffing 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 IT staffing firms.
Partial evidence: Its own public description names part of IT staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT staffing 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 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

15.4%Verified-email coverage

24.4%Mobile-number coverage

31.7Average contacts per company

11-50Median size (employees)

4.1%Largest-city concentration · New York

Sep 4, 2026Page data 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+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

8,68831–60

56,21761–90

38,82590–180

1,293180+

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 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 “IT staffing 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 IT staffing 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 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 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, 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

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 IT staffing 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 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 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.