Company lists · Data refreshed September 2026

Top 25 IT contracting companies based in the United States

Name: IT contracting 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 21, 2026 4,261 companies tracked

RevenueBase identified 4,261 IT contracting companies headquartered in the United States as of September 2026 and tracks 121,255 professional contacts across them, including 20,463 with verified work emails. New York is the largest hub.

This list covers IT contracting companies 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 21, 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 21, 2026 86% judged on-target in blind review

4,261Companies

121,255Contacts tracked

20,463Verified emails

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The 25 largest IT contracting companies based in the United States

Ranked by team size

Top 25 of 4,261 IT contracting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to IT contracting companies: 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	Kforce INC	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	6,147 contacts →
	Indirect evidence “Kforce is a solutions firm specializing in technology, finance and accounting, and professional staffing services.” Source: RevenueBase Database · checked Sep 21, 2026
2	Artech L.L.C	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 21, 2026	5,001-10,000	3,674 contacts →
	Partial 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 21, 2026
3	Oxford Global Resources	Indirect evidence	Beverly, MA, United StatesHQ checked Sep 21, 2026	501-1,000	2,564 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 21, 2026
4	Airswift	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	2,128 contacts →
	Indirect evidence “We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.” Source: RevenueBase Database · checked Sep 21, 2026
5	Infotree Global Solutions	Indirect evidence	Plymouth, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	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 21, 2026
6	Brooksource	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,480 contacts →
	Indirect evidence “At Brooksource, relationships are at the center of everything we do.” Source: RevenueBase Database · checked Sep 21, 2026
7	System ONE	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,386 contacts →
	Indirect evidence “System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…” Source: RevenueBase Database · checked Sep 21, 2026
8	V Group INC	Indirect evidence	Cranbury, NJ, United StatesHQ checked Sep 21, 2026	n/a	1,347 contacts →
	Indirect evidence “Since V Group Inc.” Source: RevenueBase Database · checked Sep 21, 2026
9	Motion Recruitment	Partial evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	501-1,000	1,150 contacts →
	Partial evidence “Motion Recruitment, a Kelly® Company, delivers IT Talent Solutions for Contract, Direct Hire, Managed Solutions and Statement of Work to all of North America from our 21 delivery…” Source: RevenueBase Database · checked Sep 21, 2026
10	Pinnacle Group, INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,141 contacts →
	Indirect evidence “Pinnacle Group is a leading provider of information technology and workforce solutions.” Source: RevenueBase Database · checked Sep 21, 2026
11	DISYS	Partial evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,108 contacts →
	Partial evidence “Digital Intelligence Systems, LLC (DISYS) is a global technology and consulting firm specializing in Managed Services, Business, Consulting, and IT/Non-IT Staffing Services.” Source: RevenueBase Database · checked Sep 21, 2026
12	Remx The Workforce Experts	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	901 contacts →
	Indirect evidence “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
13	Imcs Group	Partial evidence	Irving, TX, United StatesHQ checked Sep 21, 2026	201-500	881 contacts →
	Partial evidence “IMCS Group is an IT, Healthcare, and Professional Staffing Company that helps Enterprises optimize the business value of their Staffing investments and enables them to achieve…” Source: RevenueBase Database · checked Sep 21, 2026
14	Signature Consultants	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 21, 2026	1,001-5,000	783 contacts →
	Indirect evidence “We’re stronger together.” Source: RevenueBase Database · checked Sep 21, 2026
15	Integrated Resources, INC IRI	Indirect evidence	Edison, NJ, United StatesHQ checked Sep 21, 2026	501-1,000	762 contacts →
	Indirect evidence “Integrated Resources Inc.(IRI) is a professional staffing firm specializing in contract, consulting & full time positions in the area of Information Technology, Life Science and…” Source: RevenueBase Database · checked Sep 21, 2026
16	JSG Johnson Service Group, INC	Indirect evidence	Westmont, IL, United StatesHQ checked Sep 21, 2026	5,001-10,000	757 contacts →
	Indirect evidence “Johnson Service Group, Inc.(JSG) is a leader in the staffing and consulting services industry, with 40 years of experience investing in people and companies.” Source: RevenueBase Database · checked Sep 21, 2026
17	Varite INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	711 contacts →
	Indirect evidence “VARITE has a definite spirit.” Source: RevenueBase Database · checked Sep 21, 2026
18	Envision	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 21, 2026	201-500	694 contacts →
	Indirect evidence “View our jobs at Submit resumes to: askus@envision.com.” Source: RevenueBase Database · checked Sep 21, 2026
19	Consultadd INC	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	685 contacts →
	Partial evidence “Consultadd is a leading IT staffing and workforce solutions partner, helping U.S.” Source: RevenueBase Database · checked Sep 21, 2026
20	Acro Service Corp	Indirect evidence	Livonia, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	636 contacts →
	Indirect evidence “With singular global reach and agility, Acro Service Corporation offers you a unique integrated approach to staffing and consulting solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	Abacus Technology Corporation	Indirect evidence	Chevy Chase, MD, United StatesHQ checked Sep 21, 2026	501-1,000	627 contacts →
	Indirect evidence “Abacus Technology Corporation delivers leading edge, high quality assistance in response to complex technology challenges.” Source: RevenueBase Database · checked Sep 21, 2026
22	Inspyr Solutions	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 21, 2026	501-1,000	624 contacts →
	Indirect evidence “At INSPYR Solutions®, technology is our focus and quality is our commitment.” Source: RevenueBase Database · checked Sep 21, 2026
23	Mitchell Martin INC	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	614 contacts →
	Partial evidence “Mitchell Martin Inc.(MMI) is one of the largest employee-owned staffing firms in the U.S, specializing in IT, healthcare, healthcare IT, accounting and finance, and professional…” Source: RevenueBase Database · checked Sep 21, 2026
24	Codeforce 360	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 21, 2026	501-1,000	591 contacts →
	Partial evidence “CodeForce 360 is a growing IT staffing company which thrives on a seasoned team of IT experts, a palpable international presence, and the ability to leverage the best of…” Source: RevenueBase Database · checked Sep 21, 2026
25	QSI	Indirect evidence	Golden Valley, MN, United StatesHQ checked Sep 21, 2026	51-200	578 contacts →
	Indirect evidence “Information Technology takes talented people.” Source: RevenueBase Database · checked Sep 21, 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 contracting companies. 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 contracting companies.
Partial evidence: Its own public description names part of IT contracting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT contracting companies. 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 4,261 IT contracting companies based in the United States

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IT contracting companies based in the United States at a glance

As of Sep 21, 2026

16.9%Verified-email coverage

28.5Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,200

11-50

1,610

51-200

1,047

201-500

255

501-1,000

1,001-5,000

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 4,261 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 IT contracting companies, 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 contracting companies”. 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 contracting companies), 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 contracting companies, 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, 20,463 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 21, 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 contracting companies by metro

IT contracting companies in New York128
IT contracting companies in Dallas110
IT contracting companies in Houston106
IT contracting companies in Atlanta86
IT contracting companies in Austin80
IT contracting companies in Irving76
IT contracting companies in Chicago63
IT contracting companies in Sheridan61
IT contracting companies in Plano55
IT contracting companies in Charlotte51
IT contracting companies in Frisco51
IT contracting companies in Wilmington50
IT contracting companies in Alpharetta44
IT contracting companies in Tampa39
IT contracting companies in Fremont36
IT contracting companies in San Francisco35
IT contracting companies in Denver34
IT contracting companies in Edison33
IT contracting companies in Boston32
IT contracting companies in Herndon29
IT contracting companies in Phoenix29
IT contracting companies in San Diego27
IT contracting companies in Washington27
IT contracting companies in Dover26
IT contracting companies in Reston26
IT contracting companies in Ashburn25

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 contracting companies, 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 contracting companies are there based in the United States?

RevenueBase identified 4,261 IT contracting companies 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?

Kforce INC, headquartered in Tampa, tops this list with the largest team on record.

Which city has the most IT contracting companies?

New York leads with 128 headquartered companies, followed by Dallas (110) and Houston (106).

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 20,463 verified decision-maker contacts tracked across these 4,261 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 21, 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.