Company lists · Data refreshed September 2026

Top 25 Federal IT staffing agencies worldwide

RevenueBase identified 7,516 federal IT staffing agencies worldwide as of September 2026 and tracks 193,339 professional contacts across them, including 30,702 with verified work emails. The United States is the largest market and Hyderabad the largest hub.

This list covers federal IT staffing agencies worldwide, 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 28, 2026. Country and city lists for federal IT staffing agencies follow the table.

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 28, 2026 86% judged on-target in blind review
7,516Companies
193,339Contacts tracked
30,702Verified emails
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The 25 largest federal IT staffing agencies worldwide

Ranked by team size
Top 25 of 7,516 federal IT staffing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to federal IT staffing agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHerndon, VA, United StatesHQ checked Sep 28, 20265,001-10,0009,697 contacts →

Indirect evidence

“MANTECH is more than a technology company.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 202610001+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 28, 2026
3Strong evidenceMorristown, NJ, United StatesHQ checked Sep 28, 20265,001-10,0003,674 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 28, 2026
4Partial evidenceChesterfield, MO, United StatesHQ checked Sep 28, 20265,001-10,0002,061 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 28, 2026
5Indirect evidenceAnchorage, AK, United StatesHQ checked Sep 28, 20265,001-10,0001,853 contacts →

Indirect evidence

“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceOrlando, FL, United StatesHQ checked Sep 28, 20261,001-5,0001,759 contacts →

Indirect evidence

“Loyal Source is an Orlando-based workforce solutions provider dedicated to delivering elite services worldwide.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceBangalore, IndiaHQ checked Sep 28, 202610001+1,702 contacts →

Partial evidence

“We are the largest IT staff augmentation provider in India, with employees spread across 500+ skill sets.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidencePlymouth, MI, United StatesHQ checked Sep 28, 20261,001-5,0001,545 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 28, 2026
9Indirect evidenceAndover, MA, United StatesHQ checked Sep 28, 2026201-5001,480 contacts →

Indirect evidence

“ALKU® is a highly specialized consulting services firm focused on deploying highly skilled consulting resources in the areas of Technologies, HCIT, Life Sciences, and Government…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 28, 20261,001-5,0001,480 contacts →

Indirect evidence

“At Brooksource, relationships are at the center of everything we do.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidencePittsburgh, PA, United StatesHQ checked Sep 28, 20265,001-10,0001,386 contacts →

Partial 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 28, 2026
12Indirect evidenceCranbury, NJ, United StatesHQ checked Sep 28, 2026n/a1,347 contacts →

Indirect evidence

“Since V Group Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceAlpharetta, GA, United StatesHQ checked Sep 28, 2026501-1,0001,296 contacts →

Indirect evidence

“ASK Consulting is an award-winning technology and professional services recruiting firm servicing Fortune 500 organizations nationally.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceBangalore, IndiaHQ checked Sep 28, 202610001+1,232 contacts →

Strong evidence

“Quess IT Staffing is India’s largest IT staffing company with over 20 years of experience in placing IT professionals across 300+ companies, covering a wide range of levels and…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceGreenville, United StatesHQ checked Sep 28, 2026201-5001,187 contacts →

Partial 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 28, 2026
16Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 2026501-1,0001,150 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 28, 2026
17Indirect evidenceDallas, TX, United StatesHQ checked Sep 28, 20265,001-10,0001,141 contacts →

Indirect evidence

“Pinnacle Group is a leading provider of information technology and workforce solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceBrookfield, WI, United StatesHQ checked Sep 28, 2026201-5001,019 contacts →

Partial 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 28, 2026
19Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 28, 20261,001-5,000974 contacts →

Indirect evidence

“Software Galaxy Systems, LLC (SGS Consulting) is a Workforce Solutions organization providing a broad range of integrated suite of services through our global delivery platform.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceBowie, MD, United StatesHQ checked Sep 28, 2026501-1,000941 contacts →

Partial evidence

“Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,000901 contacts →

Partial 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 28, 2026
22Strong evidenceIrving, TX, United StatesHQ checked Sep 28, 2026201-500881 contacts →

Strong 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 28, 2026
23Indirect evidenceFort Lauderdale, FL, United StatesHQ checked Sep 28, 20261,001-5,000783 contacts →

Indirect evidence

“We’re stronger together.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026n/a766 contacts →

Indirect evidence

“Primary Services provides job opportunities for Accounting/Financial, Information Technology, HR, Recruiting, Marketing, Procurement, Call Center and Administrative professionals.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceEdison, NJ, United StatesHQ checked Sep 28, 2026501-1,000762 contacts →

Partial 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 28, 2026

Showing 25 of 7,516 federal IT staffing agencies worldwide

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Federal IT staffing agencies worldwide at a glance

As of Sep 28, 2026
15.9%Verified-email coverage
25.7Average contacts per company
11-50Median size (employees)
1.8%Largest-city concentration · Hyderabad
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,678
11-50
2,650
51-200
1,528
201-500
386
501-1,000
126
1,001-5,000
93
5,001-10,000
18
10001+
25

Email recency is reported on each country list linked below.

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 federal IT staffing agencies, 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.
Coverage
Every country. Country and city lists for federal IT staffing agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “federal IT staffing agencies”. 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 federal IT staffing agencies), 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 federal IT staffing agencies, and records with no verified work email.
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, 30,702 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 28, 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.

Federal IT staffing agencies by location

43 lists · largest first

Every Federal IT staffing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 federal IT staffing agencies, 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 federal IT staffing agencies are there worldwide?

RevenueBase identified 7,516 federal IT staffing agencies worldwide 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?

Mantech, headquartered in Herndon, tops this list with the largest team on record.

Which country has the most federal IT staffing agencies?

The United States leads with 4,333 companies, followed by India (679) and Canada (241). Every federal IT staffing agencies list by country and city is linked on this page.

Which city has the most federal IT staffing agencies?

Hyderabad leads with 134 headquartered companies, followed by New York (118) and Houston (99).

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 30,702 verified decision-maker contacts tracked across these 7,516 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 28, 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.