Company lists · Data refreshed November 2026

Top 25 IT contractor agencies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,002 companies tracked

RevenueBase identified 5,002 company matches for IT contractor agencies associated with the United States as of November 2026 and tracks 132,850 professional contacts across them, including 18,542 with verified work emails. New York is the largest hub.

This list covers company matches for IT contractor agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

5,002Companies

132,850Contacts tracked

18,542Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest IT contractor agencies based in the United States

Ranked by team size

Top 25 of 5,002 company matches for IT contractor agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Select Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	10001+	4,621 contacts →
	Exact match “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Elwood Staffing Services, INC	Exact match	Columbus, ND, United StatesHQ recorded Nov 6, 2026	n/a	3,786 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Labormax Staffing	Exact match	Kearney, KS, United StatesHQ recorded Nov 6, 2026	n/a	1,852 contacts →
	Exact match “When staffing is inconsistent across locations, the cost goes far beyond an open shift.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Nesco Resource	Exact match	Mayfield Heights, OH, United StatesHQ recorded Nov 6, 2026	501-1,000	1,723 contacts →
	Exact match “Companies need talent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	System ONE	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,625 contacts →
	Exact match “System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Infotree Global Solutions	Exact match	Plymouth, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,594 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	SELF	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,434 contacts →
	Exact match “We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	TRS Staffing Solutions	Exact match	Greenville, United StatesHQ recorded Nov 6, 2026	201-500	1,274 contacts →
	Exact match “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	DISYS	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,188 contacts →
	Exact match “Digital Intelligence Systems, LLC (DISYS) is a global technology and consulting firm specializing in Managed Services, Business, Consulting, and IT/Non-IT Staffing Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Motion Recruitment	Exact match	Boston, AZ, United StatesHQ recorded Nov 6, 2026	501-1,000	1,165 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	QPS Employment Group	Exact match	Brookfield, WI, United StatesHQ recorded Nov 6, 2026	201-500	1,116 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Remx The Workforce Experts	Exact match	Atlanta, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	985 contacts →
	Exact match “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Primary Services	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	n/a	848 contacts →
	Exact match “Primary Services provides job opportunities for Accounting/Financial, Information Technology, HR, Recruiting, Marketing, Procurement, Call Center and Administrative professionals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Integrated Resources, INC IRI	Exact match	Edison, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	818 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Genesis10	Exact match	New York, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	813 contacts →
	Exact match “Genesis10 connects companies and professionals through every stage of the hiring journey.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	JSG Johnson Service Group, INC	Exact match	Westmont, FL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	805 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Envision	Exact match	St. Louis, MO, United StatesHQ recorded Nov 6, 2026	201-500	737 contacts →
	Exact match “View our jobs at Submit resumes to: askus@envision.com.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Corestaff Services	Exact match	Atlanta, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	736 contacts →
	Exact match “Corestaff recruits and staffs essential operational support positions, from the production floor to the executive suite.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Trillium Staffing Solutions	Exact match	Kalamazoo, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	713 contacts →
	Exact match “Trillium Staffing Solutions is an employment service specializing in staffing, training, testing, on-site services, human resources and safety consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Inspyr Solutions	Exact match	Fort Lauderdale, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	686 contacts →
	Exact match “At INSPYR Solutions®, technology is our focus and quality is our commitment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Acro Service Corp	Exact match	Livonia, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	685 contacts →
	Exact match “With singular global reach and agility, Acro Service Corporation offers you a unique integrated approach to staffing and consulting solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Mitchell Martin INC	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	644 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	QSI	Exact match	Golden Valley, MN, United StatesHQ recorded Nov 6, 2026	n/a	622 contacts →
	Exact match “Information Technology takes talented people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Consultadd INC	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	201-500	592 contacts →
	Exact match “Consultadd is a leading IT staffing and workforce solutions partner, helping U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	AIC	Exact match	Minneapolis, MO, United StatesHQ recorded Nov 6, 2026	501-1,000	589 contacts →
	Exact match “AIC is a leading talent services firm that provides highly-skilled Information Technology (IT), Engineering, and Finance professionals to clients nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT contractor agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,002 IT contractor agencies based in the United States

See the full list, filter by size, metro and specialty, and access 18,542 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

IT contractor agencies based in the United States at a glance

As of Nov 6, 2026

14.0%Verified-email coverage

26.6Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

1,682

11-50

1,800

51-200

1,062

201-500

277

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 5,002 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “IT contractor agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 18,542 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT contractor agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT contractor agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT contractor agencies are there based in the United States?

RevenueBase identified 5,002 company matches for IT contractor agencies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Select Staffing tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT contractor agencies?

New York leads with 153 company records, followed by Houston (139) and Dallas (122).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 18,542 professional contacts with verified work emails tracked across these 5,002 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 5,002 IT contractor agencies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

IT contractor agencies by geography

Browse the directory

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.