Company lists · Data refreshed September 2026

Top 25 Qa staffing agencies based in the United States

RevenueBase identified 2,147 company matches for qa staffing agencies associated with the United States as of September 2026 and tracks 55,826 professional contacts across them, including 9,251 with verified work emails. New York is the largest hub.

This list covers company matches for qa staffing 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 September 29, 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 Sep 29, 2026 How this list was built
2,147Companies
55,826Contacts tracked
9,251Verified emails
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The 25 largest qa staffing agencies based in the United States

Ranked by team size
Top 25 of 2,147 company matches for qa staffing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Sep 29, 20261,001-5,0001,840 contacts →

Exact match

“Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchGreenville, United StatesHQ recorded Sep 29, 2026201-5001,187 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 · Sep 29, 2026 · View company records in RevenueBase
3Exact matchBrookfield, WI, United StatesHQ recorded Sep 29, 2026201-5001,019 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 · Sep 29, 2026 · View company records in RevenueBase
4Exact matchDecatur, GA, United StatesHQ recorded Sep 29, 20261,001-5,000980 contacts →

Exact match

“a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchPleasanton, CA, United StatesHQ recorded Sep 29, 20261,001-5,000906 contacts →

Exact match

“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchAtlanta, GA, United StatesHQ recorded Sep 29, 20261,001-5,000901 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 · Sep 29, 2026 · View company records in RevenueBase
7Exact matchIrving, TX, United StatesHQ recorded Sep 29, 2026201-500881 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 29, 2026501-1,000855 contacts →

Exact match

“MedPro Healthcare Staffing is a Joint Commission certified, leading provider of temporary and contract staffing services to healthcare facilities throughout the United States.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchEdison, NJ, United StatesHQ recorded Sep 29, 2026501-1,000762 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 · Sep 29, 2026 · View company records in RevenueBase
10Exact matchKalamazoo, MI, United StatesHQ recorded Sep 29, 20261,001-5,000653 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 · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLivonia, MI, United StatesHQ recorded Sep 29, 20261,001-5,000636 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 · Sep 29, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,000614 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 · Sep 29, 2026 · View company records in RevenueBase
13Exact matchAlpharetta, GA, United StatesHQ recorded Sep 29, 2026501-1,000591 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchOrange, CA, United StatesHQ recorded Sep 29, 20265,001-10,000584 contacts →

Exact match

“A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 29, 20261,001-5,000579 contacts →

Exact match

“LINK Staffing has been placing competent, dependable talent with Texas employers since 1980.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchAtlanta, GA, United StatesHQ recorded Sep 29, 202651-200552 contacts →

Exact match

“Prestige Staffing is an award-winning, nationally recognized leader in professional staff augmentation serving local IT, Healthcare, and Accounting & Finance clients as well as…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchMillersville, MD, United StatesHQ recorded Sep 29, 2026501-1,000541 contacts →

Exact match

“A premier provider of staffing solutions, Tech USA is in the top 1% of the Recruiting Industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchBurlington, MA, United StatesHQ recorded Sep 29, 2026201-500468 contacts →

Exact match

“For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchSunnyvale, CA, United StatesHQ recorded Sep 29, 2026201-500461 contacts →

Exact match

“ThinkSys is a QA outsourcing and software testing company for SaaS, FinTech, and Healthcare engineering teams that need reliable quality at scale.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchSouthfield, MI, United StatesHQ recorded Sep 29, 20261,001-5,000447 contacts →

Exact match

“Trusted for Talent.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchIndianapolis, IN, United StatesHQ recorded Sep 29, 2026501-1,000417 contacts →

Exact match

“iLAB specializes in Software Quality Assurance services, providing global solutions to our customers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchSan Mateo, CA, United StatesHQ recorded Sep 29, 2026501-1,000403 contacts →

Exact match

“We are celebrating 30 years of testing excellence and innovation at LogiGear, we're proud to be a cornerstone in our clients' journeys, delivering confidence not just in our…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchAldie, VA, United StatesHQ recorded Sep 29, 202651-200356 contacts →

Exact match

“Vyze Inc is a leading IT staffing company that helps small and big organizations acquire, engage and retain the right talents, when and how you need them, such as contract-hire…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,000351 contacts →

Exact match

“ICS, a Korn Ferry Company, is one of the nation’s leading staffing and recruiting companies specializing in connecting talented people to the businesses who need them.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchTX, United StatesHQ recorded Sep 29, 2026501-1,000347 contacts →

Exact match

“Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 2,147 qa staffing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 9,251 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Qa staffing agencies based in the United States at a glance

As of Sep 29, 2026
16.6%Verified-email coverage
26.0Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
708
11-50
738
51-200
486
201-500
129
501-1,000
47
1,001-5,000
32
5,001-10,000
4
10001+
2

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 2,147 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 “qa staffing 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 9,251 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 September 29, 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.

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 “qa staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many qa staffing agencies are there based in the United States?

RevenueBase identified 2,147 company matches for qa staffing agencies associated with the United States as of September 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?

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

Which city has the most qa staffing agencies?

New York leads with 66 company records, followed by Houston (55) and Atlanta (42).

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 9,251 professional contacts with verified work emails tracked across these 2,147 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 September 29, 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.