Company lists · Data refreshed September 2026

Top 25 Qa engineer staffing agencies based in the United States

Name: Qa engineer staffing agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,631 companies tracked

RevenueBase identified 3,631 qa engineer staffing agencies headquartered in the United States as of September 2026 and tracks 61,926 professional contacts across them, including 9,921 with verified work emails. New York is the largest hub.

This list covers qa engineer staffing agencies 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 29, 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 29, 2026 86% judged on-target in blind review

3,631Companies

61,926Contacts tracked

9,921Verified emails

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The 25 largest qa engineer staffing agencies based in the United States

Ranked by team size

Top 25 of 3,631 qa engineer staffing agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to qa engineer 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 29, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 29, 2026
2	ASK Consulting	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	501-1,000	1,296 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 29, 2026
3	TRS Staffing Solutions	Strong evidence	Greenville, United StatesHQ checked Sep 29, 2026	201-500	1,187 contacts →
	Strong 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 29, 2026
4	A1qa	Partial evidence	Decatur, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	980 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026
5	Qasource	Strong evidence	Pleasanton, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	906 contacts →
	Strong evidence “QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
6	Remx The Workforce Experts	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	901 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 29, 2026
7	Integrated Resources, INC IRI	Partial evidence	Edison, NJ, United StatesHQ checked Sep 29, 2026	501-1,000	762 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 29, 2026
8	Consultadd INC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 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 29, 2026
9	Codeforce 360	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 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 29, 2026
10	Volt Technical Resources	Indirect evidence	Orange, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	584 contacts →
	Indirect evidence “A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…” Source: RevenueBase Database · checked Sep 29, 2026
11	QSI	Indirect evidence	Golden Valley, MN, United StatesHQ checked Sep 29, 2026	51-200	578 contacts →
	Indirect evidence “Information Technology takes talented people.” Source: RevenueBase Database · checked Sep 29, 2026
12	MONDO	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	484 contacts →
	Partial evidence “As the largest, national staffing agency specializing exclusively in high-end, niche IT, Tech, and Digital Marketing talent, staffing is more than just our job.” Source: RevenueBase Database · checked Sep 29, 2026
13	Entegee	Partial evidence	Burlington, MA, United StatesHQ checked Sep 29, 2026	201-500	468 contacts →
	Partial evidence “For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.” Source: RevenueBase Database · checked Sep 29, 2026
14	Bartech Staffing	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 29, 2026	1,001-5,000	447 contacts →
	Indirect evidence “Trusted for Talent.” Source: RevenueBase Database · checked Sep 29, 2026
15	ILAB	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 29, 2026	501-1,000	417 contacts →
	Indirect evidence “iLAB specializes in Software Quality Assurance services, providing global solutions to our customers.” Source: RevenueBase Database · checked Sep 29, 2026
16	Astegic	Partial evidence	Falls Church, VA, United StatesHQ checked Sep 29, 2026	51-200	415 contacts →
	Partial evidence “For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Source: RevenueBase Database · checked Sep 29, 2026
17	Cps, INC	Indirect evidence	Westchester, IL, United StatesHQ checked Sep 29, 2026	51-200	410 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
18	Logigear Corporation	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 29, 2026	501-1,000	403 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
19	Stevendouglas	Indirect evidence	Sunrise, FL, United StatesHQ checked Sep 29, 2026	201-500	372 contacts →
	Indirect evidence “Since 1983, StevenDouglas has established itself as a recognized leader in providing access to top talent, driven by highly tenured and experienced professionals committed to…” Source: RevenueBase Database · checked Sep 29, 2026
20	Vyze INC	Partial evidence	Aldie, VA, United StatesHQ checked Sep 29, 2026	51-200	356 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
21	Quality Professionals Q-Pros	Indirect evidence	TX, United StatesHQ checked Sep 29, 2026	501-1,000	347 contacts →
	Indirect evidence “Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.” Source: RevenueBase Database · checked Sep 29, 2026
22	Ktek Resourcing	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	312 contacts →
	Strong evidence “Ktek Resourcing is a global staffing and recruitment firm specializing in IT, engineering, and professional services.” Source: RevenueBase Database · checked Sep 29, 2026
23	Connect Search, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	310 contacts →
	Partial evidence “Connect Search, LLC is a boutique staffing firm founded by a group of partners who share the same vision and are all recruiters at heart.” Source: RevenueBase Database · checked Sep 29, 2026
24	Itech Solutions	Partial evidence	Farmington, CT, United StatesHQ checked Sep 29, 2026	51-200	302 contacts →
	Partial evidence “iTech is a national IT staffing and recruiting firm.” Source: RevenueBase Database · checked Sep 29, 2026
25	Crystal Equation Corporation	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	262 contacts →
	Indirect evidence “Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Source: RevenueBase Database · checked Sep 29, 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: qa engineer staffing agencies. 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 qa engineer staffing agencies.
Partial evidence: Its own public description names part of qa engineer staffing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name qa engineer staffing agencies. 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 3,631 qa engineer staffing agencies based in the United States

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Qa engineer staffing agencies based in the United States at a glance

As of Sep 29, 2026

16.0%Verified-email coverage

17.1Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,713

11-50

1,117

51-200

578

201-500

136

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 3,631 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 qa engineer 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “qa engineer 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 qa engineer 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 qa engineer staffing agencies, 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, 9,921 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 29, 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.

Qa engineer staffing agencies by metro

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 qa engineer 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 qa engineer staffing agencies are there based in the United States?

RevenueBase identified 3,631 qa engineer staffing agencies 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?

Nesco Resource, headquartered in Mayfield Heights, tops this list with the largest team on record.

Which city has the most qa engineer staffing agencies?

New York leads with 156 headquartered companies, followed by Houston (91) and Austin (89).

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 9,921 verified decision-maker contacts tracked across these 3,631 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 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 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.