Company lists · Data refreshed September 2026
Top 25 Quality engineering staffing companies based in the United States
RevenueBase identified 1,471 company matches for quality engineering staffing companies associated with the United States as of September 2026 and tracks 33,233 professional contacts across them, including 6,261 with verified work emails. New York is the largest hub.
This list covers company matches for quality engineering staffing companies 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.
The 25 largest quality engineering staffing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,599 contacts → | ||||
Exact match “Companies need talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 1,187 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 | |||||
| 3 | 1,040 contacts → | ||||
Exact match “At RGBSI, we deliver engineering and quality solutions that close the gap between strategy and execution for global organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 980 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 | |||||
| 5 | 906 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 | |||||
| 6 | 742 contacts → | ||||
Exact match “QualiZeal is the world’s fastest-growing independent, AI-native Digital Quality Engineering services provider, redefining how organizations achieve quality at scale through our…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 636 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 | |||||
| 8 | 584 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 | |||||
| 9 | 481 contacts → | ||||
Exact match “Delivering Contingent Staffing, Specialized Consulting, and Managed Project Services (MSP, FSP, FSO) for Engineering, IT, and Lifescience enterprises.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 468 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 | |||||
| 11 | 447 contacts → | ||||
Exact match “Trusted for Talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 417 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 | |||||
| 13 | 403 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 | |||||
| 14 | 402 contacts → | ||||
Exact match “Sterling is an award-winning professional engineering consulting and technical staffing company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 347 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 | |||||
| 16 | 322 contacts → | ||||
Exact match “Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 310 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 296 contacts → | ||||
Exact match “BEPC Incorporated provides Technical Engineering and Information Technology Project Management services to Fortune 500 companies in the industries: Life Science, Engineering…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 262 contacts → | ||||
Exact match “Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 225 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 201 contacts → | ||||
Exact match “At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 197 contacts → | ||||
Exact match “TechLink Systems is a national provider of staffing services with offices all over the USA as well as development and support centers globally.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 188 contacts → | ||||
Exact match “LER TechForce, previously LHP Engineering Resources, was founded in 2001 and has boasted year-over-year growth ever since.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 182 contacts → | ||||
Exact match “ITS has been a leader in the engineering, technical and professional recruiting field since 1984.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 181 contacts → | ||||
Exact match “Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting About Us ImpactQA is a premier Software Testing and QA consultancy delivering…” Recorded in the RevenueBase company graph · Sep 29, 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 “quality engineering staffing companies”. 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 1,471 quality engineering staffing companies based in the United States
See the full list, filter by size, metro and specialty, and access 6,261 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Quality engineering staffing companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
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 1,471 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 “quality engineering staffing companies” 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 6,261 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.
Quality engineering staffing companies 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 “quality engineering staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many quality engineering staffing companies are there based in the United States?
RevenueBase identified 1,471 company matches for quality engineering staffing companies 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?
Nesco Resource tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most quality engineering staffing companies?
New York leads with 43 company records, followed by Houston (38) and Austin (29).
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 6,261 professional contacts with verified work emails tracked across these 1,471 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.
Ready to reach these companies? Verified emails and direct dials for all 1,471 quality engineering staffing companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Quality engineering staffing companies by geography
- Quality engineering staffing companies based in Toronto, Canada
- Quality engineering staffing companies based in Bangalore, India
- Quality engineering staffing companies based in Pune, India
- Quality engineering staffing companies based in London, United Kingdom
- Quality engineering staffing companies based in Austin, United States
- Quality engineering staffing companies based in Chicago, United States
- Quality engineering staffing companies based in Houston, United States
- Quality engineering staffing companies based in New York, United States
- Quality engineering staffing companies based in Australia
- Quality engineering staffing companies based in Belgium
- Quality engineering staffing companies based in Brazil
- Quality engineering staffing companies based in Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Quality engineering staffing companies based in Toronto, Canada
- Quality engineering staffing companies based in Bangalore, India
- Quality engineering staffing companies based in Pune, India
- Quality engineering staffing companies based in London, United Kingdom
- Quality engineering staffing companies based in Austin, United States
- Quality engineering staffing companies based in Chicago, United States
Company intelligence · public preview
Top 25 quality engineering staffing companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,471 matching company records for quality engineering staffing companies based in the United States, with 33,233 tracked contacts and 6,261 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quality engineering staffing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Nesco Resourcenescoresource.comHQ: Mayfield Heights, OH, United StatesReported employees: 501-1,000 | Mayfield Heights, OH, United States | 501-1,000 | Exact match | 1,599 contacts → |
“Companies need talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TRS Staffing Solutionstrsstaffing.comHQ: Greenville, United StatesReported employees: 201-500 | Greenville, United States | 201-500 | Exact match | 1,187 contacts → |
“TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | RGBSIrgbsi.com HQ: Troy, MI, United StatesReported employees: 1,001-5,000 | Troy, MI, United States | 1,001-5,000 | Exact match | 1,040 contacts → |
“At RGBSI, we deliver engineering and quality solutions that close the gap between strategy and execution for global organizations of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  A1qaa1qa.comHQ: Decatur, GA, United StatesReported employees: 1,001-5,000 | Decatur, GA, United States | 1,001-5,000 | Exact match | 980 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Qasourceqasource.comHQ: Pleasanton, CA, United StatesReported employees: 1,001-5,000 | Pleasanton, CA, United States | 1,001-5,000 | Exact match | 906 contacts → |
“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Qualizealqualizeal.comHQ: Irving, TX, United StatesReported employees: 501-1,000 | Irving, TX, United States | 501-1,000 | Exact match | 742 contacts → |
“QualiZeal is the world’s fastest-growing independent, AI-native Digital Quality Engineering services provider, redefining how organizations achieve quality at scale through our…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Acro Service Corpacrocorp.comHQ: Livonia, MI, United StatesReported employees: 1,001-5,000 | Livonia, MI, United States | 1,001-5,000 | Exact match | 636 contacts → |
“With singular global reach and agility, Acro Service Corporation offers you a unique integrated approach to staffing and consulting solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Volt Technical Resourcesvolt.comHQ: Orange, CA, United StatesReported employees: 5,001-10,000 | Orange, CA, United States | 5,001-10,000 | Exact match | 584 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Black Diamond Networksblackdiamondnet.comHQ: Andover, MA, United StatesReported employees: 51-200 | Andover, MA, United States | 51-200 | Exact match | 481 contacts → |
“Delivering Contingent Staffing, Specialized Consulting, and Managed Project Services (MSP, FSP, FSO) for Engineering, IT, and Lifescience enterprises.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Entegeeentegee.comHQ: Burlington, MA, United StatesReported employees: 201-500 | Burlington, MA, United States | 201-500 | Exact match | 468 contacts → |
“For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Bartech Staffingbartechstaffing.comHQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 447 contacts → |
“Trusted for Talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ILABilabquality.comHQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 417 contacts → |
“iLAB specializes in Software Quality Assurance services, providing global solutions to our customers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Logigear Corporationlogigear.comHQ: San Mateo, CA, United StatesReported employees: 501-1,000 | San Mateo, CA, United States | 501-1,000 | Exact match | 403 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Sterling Engineeringsterling-engineering.comHQ: Westchester, IL, United StatesReported employees: 501-1,000 | Westchester, IL, United States | 501-1,000 | Exact match | 402 contacts → |
“Sterling is an award-winning professional engineering consulting and technical staffing company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Quality Professionals Q-Prosq-pros.comHQ: TX, United StatesReported employees: 501-1,000 | TX, United States | 501-1,000 | Exact match | 347 contacts → |
“Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Triple Crowntripleco.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 322 contacts → |
“Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Connect Search, LLCconnectsearchllc.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 310 contacts → |
“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.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Bepc Inc.bepcinc.comHQ: San Angelo, TX, United StatesReported employees: 201-500 | San Angelo, TX, United States | 201-500 | Exact match | 296 contacts → |
“BEPC Incorporated provides Technical Engineering and Information Technology Project Management services to Fortune 500 companies in the industries: Life Science, Engineering…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Crystal Equation Corporationcrystalequation.comHQ: Chicago, IL, United StatesReported employees: 201-500 | Chicago, IL, United States | 201-500 | Exact match | 262 contacts → |
“Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  C4 Technical Servicesc4techservices.comHQ: Eagan, MN, United StatesReported employees: 501-1,000 | Eagan, MN, United States | 501-1,000 | Exact match | 225 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Consolidated Engineering Laboratoriesce-labs.com HQ: San Ramon, CA, United StatesReported employees: 201-500 | San Ramon, CA, United States | 201-500 | Exact match | 201 contacts → |
“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Techlink Systems, INCtechlinksystems.comHQ: San Francisco, United StatesReported employees: 201-500 | San Francisco, United States | 201-500 | Exact match | 197 contacts → |
“TechLink Systems is a national provider of staffing services with offices all over the USA as well as development and support centers globally.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  LER Techforcelertechforce.comHQ: Columbus, IN, United StatesReported employees: 201-500 | Columbus, IN, United States | 201-500 | Exact match | 188 contacts → |
“LER TechForce, previously LHP Engineering Resources, was founded in 2001 and has boasted year-over-year growth ever since.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Integrated Talent Strategies ITSwehirepeople.comHQ: Holland, OH, United StatesReported employees: 501-1,000 | Holland, OH, United States | 501-1,000 | Exact match | 182 contacts → |
“ITS has been a leader in the engineering, technical and professional recruiting field since 1984.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Impactqaimpactqa.comHQ: Plano, United StatesReported employees: 201-500 | Plano, United States | 201-500 | Exact match | 181 contacts → |
“Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting About Us ImpactQA is a premier Software Testing and QA consultancy delivering…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,471 company matches
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Quality engineering staffing companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,471 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,471 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quality engineering staffing companies by metro
Questions about this company list
What does Exact match mean for quality engineering staffing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quality engineering staffing companies did RevenueBase find based in the United States?
The saved snapshot records 1,471 matching company records, 33,233 tracked contacts and 6,261 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Quality engineering staffing companies by geography
- Quality engineering staffing companies based in Toronto, Canada
- Quality engineering staffing companies based in Bangalore, India
- Quality engineering staffing companies based in Pune, India
- Quality engineering staffing companies based in London, United Kingdom
- Quality engineering staffing companies based in Austin, United States
- Quality engineering staffing companies based in Chicago, United States
- Quality engineering staffing companies based in Houston, United States
- Quality engineering staffing companies based in New York, United States
- Quality engineering staffing companies based in Australia
- Quality engineering staffing companies based in Belgium
- Quality engineering staffing companies based in Brazil
- Quality engineering staffing companies based in Canada
Cite this list
RevenueBase Data Team. Top 25 quality engineering staffing companies based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/quality-engineering-staffing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Quality engineering staffing companies based in Toronto, Canada
- Quality engineering staffing companies based in Bangalore, India
- Quality engineering staffing companies based in Pune, India
- Quality engineering staffing companies based in London, United Kingdom
- Quality engineering staffing companies based in Austin, United States
- Quality engineering staffing companies based in Chicago, United States
Company intelligence · public preview
Top 25 quality engineering staffing companies based in the United States
RevenueBase records 1,471 matching company records for quality engineering staffing companies based in the United States, with 33,233 tracked contacts and 6,261 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quality engineering staffing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Nesco Resourcenescoresource.com HQ: Mayfield Heights, OH, United StatesReported employees: 501-1,000 | Mayfield Heights, OH, United States | 501-1,000 | Exact match | 1,599 contacts → |
“Companies need talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TRS Staffing Solutionstrsstaffing.com HQ: Greenville, United StatesReported employees: 201-500 | Greenville, United States | 201-500 | Exact match | 1,187 contacts → |
“TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | RGBSIrgbsi.com HQ: Troy, MI, United StatesReported employees: 1,001-5,000 | Troy, MI, United States | 1,001-5,000 | Exact match | 1,040 contacts → |
“At RGBSI, we deliver engineering and quality solutions that close the gap between strategy and execution for global organizations of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | A1qaa1qa.com HQ: Decatur, GA, United StatesReported employees: 1,001-5,000 | Decatur, GA, United States | 1,001-5,000 | Exact match | 980 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Qasourceqasource.com HQ: Pleasanton, CA, United StatesReported employees: 1,001-5,000 | Pleasanton, CA, United States | 1,001-5,000 | Exact match | 906 contacts → |
“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Qualizealqualizeal.com HQ: Irving, TX, United StatesReported employees: 501-1,000 | Irving, TX, United States | 501-1,000 | Exact match | 742 contacts → |
“QualiZeal is the world’s fastest-growing independent, AI-native Digital Quality Engineering services provider, redefining how organizations achieve quality at scale through our…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Acro Service Corpacrocorp.com HQ: Livonia, MI, United StatesReported employees: 1,001-5,000 | Livonia, MI, United States | 1,001-5,000 | Exact match | 636 contacts → |
“With singular global reach and agility, Acro Service Corporation offers you a unique integrated approach to staffing and consulting solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Volt Technical Resourcesvolt.com HQ: Orange, CA, United StatesReported employees: 5,001-10,000 | Orange, CA, United States | 5,001-10,000 | Exact match | 584 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Black Diamond Networksblackdiamondnet.com HQ: Andover, MA, United StatesReported employees: 51-200 | Andover, MA, United States | 51-200 | Exact match | 481 contacts → |
“Delivering Contingent Staffing, Specialized Consulting, and Managed Project Services (MSP, FSP, FSO) for Engineering, IT, and Lifescience enterprises.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Entegeeentegee.com HQ: Burlington, MA, United StatesReported employees: 201-500 | Burlington, MA, United States | 201-500 | Exact match | 468 contacts → |
“For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Bartech Staffingbartechstaffing.com HQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 447 contacts → |
“Trusted for Talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ILABilabquality.com HQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 417 contacts → |
“iLAB specializes in Software Quality Assurance services, providing global solutions to our customers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Logigear Corporationlogigear.com HQ: San Mateo, CA, United StatesReported employees: 501-1,000 | San Mateo, CA, United States | 501-1,000 | Exact match | 403 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Sterling Engineeringsterling-engineering.com HQ: Westchester, IL, United StatesReported employees: 501-1,000 | Westchester, IL, United States | 501-1,000 | Exact match | 402 contacts → |
“Sterling is an award-winning professional engineering consulting and technical staffing company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Quality Professionals Q-Prosq-pros.com HQ: TX, United StatesReported employees: 501-1,000 | TX, United States | 501-1,000 | Exact match | 347 contacts → |
“Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Triple Crowntripleco.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 322 contacts → |
“Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Connect Search, LLCconnectsearchllc.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 310 contacts → |
“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.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Bepc Inc.bepcinc.com HQ: San Angelo, TX, United StatesReported employees: 201-500 | San Angelo, TX, United States | 201-500 | Exact match | 296 contacts → |
“BEPC Incorporated provides Technical Engineering and Information Technology Project Management services to Fortune 500 companies in the industries: Life Science, Engineering…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Crystal Equation Corporationcrystalequation.com HQ: Chicago, IL, United StatesReported employees: 201-500 | Chicago, IL, United States | 201-500 | Exact match | 262 contacts → |
“Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | C4 Technical Servicesc4techservices.com HQ: Eagan, MN, United StatesReported employees: 501-1,000 | Eagan, MN, United States | 501-1,000 | Exact match | 225 contacts → |
“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 description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Consolidated Engineering Laboratoriesce-labs.com HQ: San Ramon, CA, United StatesReported employees: 201-500 | San Ramon, CA, United States | 201-500 | Exact match | 201 contacts → |
“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Techlink Systems, INCtechlinksystems.com HQ: San Francisco, United StatesReported employees: 201-500 | San Francisco, United States | 201-500 | Exact match | 197 contacts → |
“TechLink Systems is a national provider of staffing services with offices all over the USA as well as development and support centers globally.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | LER Techforcelertechforce.com HQ: Columbus, IN, United StatesReported employees: 201-500 | Columbus, IN, United States | 201-500 | Exact match | 188 contacts → |
“LER TechForce, previously LHP Engineering Resources, was founded in 2001 and has boasted year-over-year growth ever since.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Integrated Talent Strategies ITSwehirepeople.com HQ: Holland, OH, United StatesReported employees: 501-1,000 | Holland, OH, United States | 501-1,000 | Exact match | 182 contacts → |
“ITS has been a leader in the engineering, technical and professional recruiting field since 1984.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Impactqaimpactqa.com HQ: Plano, United StatesReported employees: 201-500 | Plano, United States | 201-500 | Exact match | 181 contacts → |
“Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting About Us ImpactQA is a premier Software Testing and QA consultancy delivering…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Quality engineering staffing companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,471 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 1,471 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quality engineering staffing companies by metro
Questions about this company list
What does Exact match mean for quality engineering staffing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quality engineering staffing companies did RevenueBase find based in the United States?
The saved snapshot records 1,471 matching company records, 33,233 tracked contacts and 6,261 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Quality engineering staffing companies by geography
- Quality engineering staffing companies based in Toronto, Canada
- Quality engineering staffing companies based in Bangalore, India
- Quality engineering staffing companies based in Pune, India
- Quality engineering staffing companies based in London, United Kingdom
- Quality engineering staffing companies based in Austin, United States
- Quality engineering staffing companies based in Chicago, United States
- Quality engineering staffing companies based in Houston, United States
- Quality engineering staffing companies based in New York, United States
- Quality engineering staffing companies based in Australia
- Quality engineering staffing companies based in Belgium
- Quality engineering staffing companies based in Brazil
- Quality engineering staffing companies based in Canada
Cite this list
RevenueBase Data Team. Top 25 quality engineering staffing companies based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/quality-engineering-staffing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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