Company lists · Data refreshed November 2026

Top 25 Software testing staffing agencies based in the United States

RevenueBase identified 736 company matches for software testing staffing agencies associated with the United States as of November 2026 and tracks 16,494 professional contacts across them, including 2,438 with verified work emails. New York is the largest hub.

This list covers company matches for software testing 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 November 5, 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 5, 2026 How this list was built
736Companies
16,494Contacts tracked
2,438Verified emails
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The 25 largest software testing staffing agencies based in the United States

Ranked by team size
Top 25 of 736 company matches for software testing staffing agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchFramingham, MA, United StatesHQ recorded Nov 5, 2026201-5001,463 contacts →

Exact match

“Applause is the global leader in managed software testing services and digital quality.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchPleasanton, CA, United StatesHQ recorded Nov 5, 20261,001-5,000885 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 · Nov 5, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500592 contacts →

Exact match

“Consultadd is a leading IT staffing and workforce solutions partner, helping U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchBurlington, MA, United StatesHQ recorded Nov 5, 2026201-500487 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSan Mateo, CA, United StatesHQ recorded Nov 5, 2026501-1,000437 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 · Nov 5, 2026 · View company records in RevenueBase
6Exact matchFalls Church, VA, United StatesHQ recorded Nov 5, 202651-200419 contacts →

Exact match

“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAldie, VA, United StatesHQ recorded Nov 5, 202651-200349 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchFarmington, CT, United StatesHQ recorded Nov 5, 202651-200322 contacts →

Exact match

“iTech is a national IT staffing and recruiting firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLos Angeles, MI, United StatesHQ recorded Nov 5, 2026501-1,000287 contacts →

Exact match

“Kett Engineering Corporation has been operating for over 60 years and has spent the past 28 years dedicating its services to supporting the automotive testing and staffing needs…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 5, 2026201-500242 contacts →

Exact match

“Welcome to Dataquad Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchEagan, MN, United StatesHQ recorded Nov 5, 2026501-1,000240 contacts →

Exact match

“C4 Technical Services knows the right people in IT and Telecom C4 Technical Services earns the trust of our clients and candidates by understanding the needs of both, matching…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchWyoming, WY, United StatesHQ recorded Nov 5, 202651-200223 contacts →

Exact match

“As recruiting and staffing industry experts, we're passionate about our mission to fill the greatest tech jobs with the most talented people.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNY, United StatesHQ recorded Nov 5, 2026201-500199 contacts →

Exact match

“Kualitatem empowers businesses to deliver quality software.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBellevue, OR, United StatesHQ recorded Nov 5, 2026201-500183 contacts →

Exact match

“Protingent is a specialized technical staffing firm connecting top IT and engineering professionals with leading technology companies across the U.S.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchRedmond, TX, United StatesHQ recorded Nov 5, 2026501-1,000126 contacts →

Exact match

“Lenora Systems brand represents a dedication to providing high-quality IT professionals who can get job done.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchCampbell, CA, United StatesHQ recorded Nov 5, 202651-200125 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchPlano, TX, United StatesHQ recorded Nov 5, 2026201-500123 contacts →

Exact match

“Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchNY, United StatesHQ recorded Nov 5, 202651-200121 contacts →

Exact match

“RTTS is the premier pure-play QA & Testing organization that specializes in Test Automation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchWest Boylston, MA, United StatesHQ recorded Nov 5, 202651-200121 contacts →

Exact match

“The Holistic Partners is the premier technical staffing firm head quartered in the MA.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchLeawood, KS, United StatesHQ recorded Nov 5, 202651-200121 contacts →

Exact match

“We are living in the digital golden age of Information Technology!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 202651-200115 contacts →

Exact match

“Since 1996, Econosoft, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchScottsdale, AZ, United StatesHQ recorded Nov 5, 202611-50113 contacts →

Exact match

“Tech One IT (Tech One) finds precisely the right IT talent for your needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 202611-50103 contacts →

Exact match

“WHO WE ARE?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchAurora, CO, United StatesHQ recorded Nov 5, 202651-20097 contacts →

Exact match

“Founded in and located in metro Denver, Colorado, iBeta Quality Assurance specializes in “QA on Demand” for software: functionality, compatibility, security, load/performance…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchRochester Hills, MA, United StatesHQ recorded Nov 5, 2026201-50096 contacts →

Exact match

“Since 1984, Trillium Technical and its affiliates have been staffing professional IT and Engineering candidates in positions around the country.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 736 software testing staffing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 2,438 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Software testing staffing agencies based in the United States at a glance

As of Nov 5, 2026
14.8%Verified-email coverage
22.4Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
275
11-50
251
51-200
159
201-500
33
501-1,000
8
1,001-5,000
5
5,001-10,000
1
10001+
1

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 736 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 “software testing 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 2,438 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 5, 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 “software testing staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 736 company matches for software testing staffing 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?

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

Which city has the most software testing staffing agencies?

New York leads with 33 company records, followed by San Francisco (18) and Dallas (15).

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 2,438 professional contacts with verified work emails tracked across these 736 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 736 software testing staffing agencies based in the United States. Start with a free account, no credit card.

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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.