Company lists · Data refreshed November 2026
Top 25 Quality engineering services based in the United States
RevenueBase identified 1,008 company matches for quality engineering services associated with the United States as of November 2026 and tracks 33,122 professional contacts across them, including 9,212 with verified work emails. New York is the largest hub.
This list covers company matches for quality engineering services 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 6, 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 services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,749 contacts → | ||||
Exact match “Cigniti Technologies Limited is the world’s leading AI & IP-led Digital Assurance and Digital Engineering services company that helps global companies across industries…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,463 contacts → | ||||
Exact match “Applause is the global leader in managed software testing services and digital quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,125 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 885 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 6, 2026 · View company records in RevenueBase | |||||
| 5 | 840 contacts → | ||||
Exact match “Tam Consulting Services LLC (TCS) provides engineering and quality services which includes construction engineering and inspection (CE & I), materials testing, program management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 803 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 795 contacts → | ||||
Exact match “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 722 contacts → | ||||
Exact match “BJIT is a global leader in offshore software development and IT outsourcing services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 514 contacts → | ||||
Exact match “With an enduring commitment to Engineering Power-ful Solutions, Ampirical offers services with a focus on outstanding quality, value added engineering and successful project…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 437 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 6, 2026 · View company records in RevenueBase | |||||
| 11 | 426 contacts → | ||||
Exact match “Information Technology & Services” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 419 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 6, 2026 · View company records in RevenueBase | |||||
| 13 | 371 contacts → | ||||
Exact match “Auriga is a software R&D and IT outsourcing services provider incorporated in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 337 contacts → | ||||
Exact match “At Kairos, we specialize in Digital Quality Engineering and Digital Transformation, helping our clients navigate the modern technology landscape.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 324 contacts → | ||||
Exact match “Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 252 contacts → | ||||
Exact match “Quality in An AI Driven World.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 220 contacts → | ||||
Exact match “For over a half century our professional staff - in meeting technical, schedule, budget, and regulatory requirements - has successfully completed projects in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 219 contacts → | ||||
Exact match “Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 208 contacts → | ||||
Exact match “At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 201 contacts → | ||||
Exact match “Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 199 contacts → | ||||
Exact match “Kualitatem empowers businesses to deliver quality software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 192 contacts → | ||||
Exact match “Thielsch, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 189 contacts → | ||||
Exact match “Experience Assurance in a complex, interconnected and fast-growing digital space.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 182 contacts → | ||||
Exact match “We're glad you're here!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 173 contacts → | ||||
Exact match “AI writes code faster than your team can review it.” Recorded in the RevenueBase company graph · Nov 6, 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 services”. 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 1,008 quality engineering services based in the United States
See the full list, filter by size, metro and specialty, and access 9,212 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Quality engineering services based in the United States at a glance
As of Nov 6, 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 1,008 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 services” 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 9,212 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 6, 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 services 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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many quality engineering services are there based in the United States?
RevenueBase identified 1,008 company matches for quality engineering services 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?
Cigniti Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most quality engineering services?
New York leads with 36 company records, followed by Houston (21) and San Francisco (21).
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 9,212 professional contacts with verified work emails tracked across these 1,008 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,008 quality engineering services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Quality engineering services by geography
- Quality engineering services based in Melbourne, Australia
- Quality engineering services based in Curitiba, Brazil
- Quality engineering services based in Sao Paulo, Brazil
- Quality engineering services based in Paris, France
- Quality engineering services based in Ahmedabad, India
- Quality engineering services based in Bangalore, India
- Quality engineering services based in Chennai, India
- Quality engineering services based in Hyderabad, India
- Quality engineering services based in Noida, India
- Quality engineering services based in Pune, India
- Quality engineering services based in Riyadh, Saudi Arabia
- Quality engineering services based in Stockholm, Sweden
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 services based in Melbourne, Australia
- Quality engineering services based in Curitiba, Brazil
- Quality engineering services based in Sao Paulo, Brazil
- Quality engineering services based in Paris, France
- Quality engineering services based in Ahmedabad, India
- Quality engineering services based in Bangalore, India
Company intelligence · public preview
Top 25 quality engineering services 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 1,008 matching company records for quality engineering services based in the United States, with 33,122 tracked contacts and 9,212 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: November 6, 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 services 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 | Cigniti Technologiescigniti.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 1,749 contacts → |
“Cigniti Technologies Limited is the world’s leading AI & IP-led Digital Assurance and Digital Engineering services company that helps global companies across industries…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Applauseapplause.comHQ: Framingham, MA, United StatesReported employees: 201-500 | Framingham, MA, United States | 201-500 | Exact match | 1,463 contacts → |
“Applause is the global leader in managed software testing services and digital quality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  RGBSIrgbsi.comHQ: Troy, MI, United StatesReported employees: 1,001-5,000 | Troy, MI, United States | 1,001-5,000 | Exact match | 1,125 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Qasourceqasource.comHQ: Pleasanton, CA, United StatesReported employees: 1,001-5,000 | Pleasanton, CA, United States | 1,001-5,000 | Exact match | 885 contacts → |
“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  TCStcsengineering.comHQ: Plano, TX, United StatesReported employees: Not recorded | Plano, TX, United States | Not recorded | Exact match | 840 contacts → |
“Tam Consulting Services LLC (TCS) provides engineering and quality services which includes construction engineering and inspection (CE & I), materials testing, program management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Qualizealqualizeal.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 803 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Professional Service Industries, Inc. PSIintertek.comHQ: Arlington Heights, NY, United StatesReported employees: 1,001-5,000 | Arlington Heights, NY, United States | 1,001-5,000 | Exact match | 795 contacts → |
“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  BJITbjitgroup.comHQ: Dhaka, CA, United StatesReported employees: 501-1,000 | Dhaka, CA, United States | 501-1,000 | Exact match | 722 contacts → |
“BJIT is a global leader in offshore software development and IT outsourcing services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ampiricalampirical.comHQ: Covington, CA, United StatesReported employees: 501-1,000 | Covington, CA, United States | 501-1,000 | Exact match | 514 contacts → |
“With an enduring commitment to Engineering Power-ful Solutions, Ampirical offers services with a focus on outstanding quality, value added engineering and successful project…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Logigear Corporationlogigear.comHQ: San Mateo, CA, United StatesReported employees: 501-1,000 | San Mateo, CA, United States | 501-1,000 | Exact match | 437 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ZENQqualitestgroup.comHQ: Dallas, TX, United StatesReported employees: 501-1,000 | Dallas, TX, United States | 501-1,000 | Exact match | 426 contacts → |
“Information Technology & Services” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Astegicastegic.comHQ: Falls Church, VA, United StatesReported employees: 51-200 | Falls Church, VA, United States | 51-200 | Exact match | 419 contacts → |
“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Aurigaauriga.comHQ: Woburn, MA, United StatesReported employees: 501-1,000 | Woburn, MA, United States | 501-1,000 | Exact match | 371 contacts → |
“Auriga is a software R&D and IT outsourcing services provider incorporated in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Kairos Technologieskairostech.comHQ: Irving, MI, United StatesReported employees: 501-1,000 | Irving, MI, United States | 501-1,000 | Exact match | 337 contacts → |
“At Kairos, we specialize in Digital Quality Engineering and Digital Transformation, helping our clients navigate the modern technology landscape.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  M&s Engineeringmsengr.comHQ: Spring Branch, TX, United StatesReported employees: 201-500 | Spring Branch, TX, United States | 201-500 | Exact match | 324 contacts → |
“Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Q Analystsqanalysts.comHQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 252 contacts → |
“Quality in An AI Driven World.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Waldemar S. Nelson & Co., INCwsnelson.comHQ: New Orleans, TX, United StatesReported employees: 201-500 | New Orleans, TX, United States | 201-500 | Exact match | 220 contacts → |
“For over a half century our professional staff - in meeting technical, schedule, budget, and regulatory requirements - has successfully completed projects in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  PRO QC Internationalproqc.comHQ: Mchenry, IL, United StatesReported employees: 501-1,000 | Mchenry, IL, United States | 501-1,000 | Exact match | 219 contacts → |
“Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Consolidated Engineering Laboratoriesce-labs.comHQ: San Ramon, HI, United StatesReported employees: 201-500 | San Ramon, HI, United States | 201-500 | Exact match | 208 contacts → |
“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  HVJ Associateshvj.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 201 contacts → |
“Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Kualitatem INCkualitatem.comHQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Thielsch Engineeringthielsch.comHQ: Cranston, OH, United StatesReported employees: 501-1,000 | Cranston, OH, United States | 501-1,000 | Exact match | 192 contacts → |
“Thielsch, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Charles Hudson Technology Solutions INCchtsinc.comHQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 189 contacts → |
“Experience Assurance in a complex, interconnected and fast-growing digital space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Narrasoftnarrasoft.comHQ: Cary, NC, United StatesReported employees: 201-500 | Cary, NC, United States | 201-500 | Exact match | 182 contacts → |
“We're glad you're here!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Qualitylogicqualitylogic.comHQ: Boise, ID, United StatesReported employees: 51-200 | Boise, ID, United States | 51-200 | Exact match | 173 contacts → |
“AI writes code faster than your team can review it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,008 company matches
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Quality engineering services: dataset insights
November 6, 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
1,004 records in the displayed employee bands.
4 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 1,008 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: November 6, 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 services by metro
Questions about this company list
What does Exact match mean for quality engineering services?
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 services did RevenueBase find based in the United States?
The saved snapshot records 1,008 matching company records, 33,122 tracked contacts and 9,212 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: November 6, 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 services by geography
- Quality engineering services based in Melbourne, Australia
- Quality engineering services based in Curitiba, Brazil
- Quality engineering services based in Sao Paulo, Brazil
- Quality engineering services based in Paris, France
- Quality engineering services based in Ahmedabad, India
- Quality engineering services based in Bangalore, India
- Quality engineering services based in Chennai, India
- Quality engineering services based in Hyderabad, India
- Quality engineering services based in Noida, India
- Quality engineering services based in Pune, India
- Quality engineering services based in Riyadh, Saudi Arabia
- Quality engineering services based in Stockholm, Sweden
Cite this list
RevenueBase Data Team. Top 25 quality engineering services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/quality-engineering-services/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 services based in Melbourne, Australia
- Quality engineering services based in Curitiba, Brazil
- Quality engineering services based in Sao Paulo, Brazil
- Quality engineering services based in Paris, France
- Quality engineering services based in Ahmedabad, India
- Quality engineering services based in Bangalore, India
Company intelligence · public preview
Top 25 quality engineering services based in the United States
RevenueBase records 1,008 matching company records for quality engineering services based in the United States, with 33,122 tracked contacts and 9,212 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: November 6, 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 services 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 | Cigniti Technologiescigniti.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 1,749 contacts → |
“Cigniti Technologies Limited is the world’s leading AI & IP-led Digital Assurance and Digital Engineering services company that helps global companies across industries…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Applauseapplause.com HQ: Framingham, MA, United StatesReported employees: 201-500 | Framingham, MA, United States | 201-500 | Exact match | 1,463 contacts → |
“Applause is the global leader in managed software testing services and digital quality.” Recorded description excerpt · November 6, 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 | 1,125 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Qasourceqasource.com HQ: Pleasanton, CA, United StatesReported employees: 1,001-5,000 | Pleasanton, CA, United States | 1,001-5,000 | Exact match | 885 contacts → |
“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | TCStcsengineering.com HQ: Plano, TX, United StatesReported employees: Not recorded | Plano, TX, United States | Not recorded | Exact match | 840 contacts → |
“Tam Consulting Services LLC (TCS) provides engineering and quality services which includes construction engineering and inspection (CE & I), materials testing, program management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Qualizealqualizeal.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 803 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Professional Service Industries, Inc. PSIintertek.com HQ: Arlington Heights, NY, United StatesReported employees: 1,001-5,000 | Arlington Heights, NY, United States | 1,001-5,000 | Exact match | 795 contacts → |
“Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | BJITbjitgroup.com HQ: Dhaka, CA, United StatesReported employees: 501-1,000 | Dhaka, CA, United States | 501-1,000 | Exact match | 722 contacts → |
“BJIT is a global leader in offshore software development and IT outsourcing services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ampiricalampirical.com HQ: Covington, CA, United StatesReported employees: 501-1,000 | Covington, CA, United States | 501-1,000 | Exact match | 514 contacts → |
“With an enduring commitment to Engineering Power-ful Solutions, Ampirical offers services with a focus on outstanding quality, value added engineering and successful project…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Logigear Corporationlogigear.com HQ: San Mateo, CA, United StatesReported employees: 501-1,000 | San Mateo, CA, United States | 501-1,000 | Exact match | 437 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ZENQqualitestgroup.com HQ: Dallas, TX, United StatesReported employees: 501-1,000 | Dallas, TX, United States | 501-1,000 | Exact match | 426 contacts → |
“Information Technology & Services” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Astegicastegic.com HQ: Falls Church, VA, United StatesReported employees: 51-200 | Falls Church, VA, United States | 51-200 | Exact match | 419 contacts → |
“For 15 years, Astegic has been helping Fortune 500 through startup companies with their Testing & QA needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aurigaauriga.com HQ: Woburn, MA, United StatesReported employees: 501-1,000 | Woburn, MA, United States | 501-1,000 | Exact match | 371 contacts → |
“Auriga is a software R&D and IT outsourcing services provider incorporated in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Kairos Technologieskairostech.com HQ: Irving, MI, United StatesReported employees: 501-1,000 | Irving, MI, United States | 501-1,000 | Exact match | 337 contacts → |
“At Kairos, we specialize in Digital Quality Engineering and Digital Transformation, helping our clients navigate the modern technology landscape.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | M&s Engineeringmsengr.com HQ: Spring Branch, TX, United StatesReported employees: 201-500 | Spring Branch, TX, United States | 201-500 | Exact match | 324 contacts → |
“Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Q Analystsqanalysts.com HQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 252 contacts → |
“Quality in An AI Driven World.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Waldemar S. Nelson & Co., INCwsnelson.com HQ: New Orleans, TX, United StatesReported employees: 201-500 | New Orleans, TX, United States | 201-500 | Exact match | 220 contacts → |
“For over a half century our professional staff - in meeting technical, schedule, budget, and regulatory requirements - has successfully completed projects in the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PRO QC Internationalproqc.com HQ: Mchenry, IL, United StatesReported employees: 501-1,000 | Mchenry, IL, United States | 501-1,000 | Exact match | 219 contacts → |
“Pro QC International provides tailored quality solutions with a human touch in 100 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Consolidated Engineering Laboratoriesce-labs.com HQ: San Ramon, HI, United StatesReported employees: 201-500 | San Ramon, HI, United States | 201-500 | Exact match | 208 contacts → |
“At Consolidated Engineering Laboratories (CEL) we consider ourselves more than a Testing Laboratory.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HVJ Associateshvj.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 201 contacts → |
“Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kualitatem INCkualitatem.com HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Thielsch Engineeringthielsch.com HQ: Cranston, OH, United StatesReported employees: 501-1,000 | Cranston, OH, United States | 501-1,000 | Exact match | 192 contacts → |
“Thielsch, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Charles Hudson Technology Solutions INCchtsinc.com HQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 189 contacts → |
“Experience Assurance in a complex, interconnected and fast-growing digital space.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Narrasoftnarrasoft.com HQ: Cary, NC, United StatesReported employees: 201-500 | Cary, NC, United States | 201-500 | Exact match | 182 contacts → |
“We're glad you're here!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Qualitylogicqualitylogic.com HQ: Boise, ID, United StatesReported employees: 51-200 | Boise, ID, United States | 51-200 | Exact match | 173 contacts → |
“AI writes code faster than your team can review it.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,008 company matches
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Quality engineering services: dataset insights
November 6, 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
1,004 records in the displayed employee bands.
4 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 1,008 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: November 6, 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 services by metro
Questions about this company list
What does Exact match mean for quality engineering services?
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 services did RevenueBase find based in the United States?
The saved snapshot records 1,008 matching company records, 33,122 tracked contacts and 9,212 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 25 quality engineering services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/quality-engineering-services/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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- Quality engineering services based in Melbourne, Australia
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