Company lists · Data refreshed November 2026
Top 23 Application testing services based in the United States
RevenueBase identified 487 company matches for application testing services associated with the United States as of November 2026 and tracks 19,090 professional contacts across them, including 4,921 with verified work emails. San Francisco is the largest hub.
This list covers company matches for application testing 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 23 largest application testing services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 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 | |||||
| 3 | 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 | |||||
| 4 | 426 contacts → | ||||
Exact match “Information Technology & Services” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 375 contacts → | ||||
Exact match “Katalon True Platform - the AI Platform for Software Quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 357 contacts → | ||||
Exact match “Sauce Labs AURA (AI-Unified Release Assurance) is the only closed-loop agentic AI platform that authors, runs, and analyzes tests with human oversight.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 252 contacts → | ||||
Exact match “Quality in An AI Driven World.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 250 contacts → | ||||
Exact match “ACCELQ is the only cloud-based continuous testing platform that seamlessly automates API and web testing without writing a single line of code.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 229 contacts → | ||||
Exact match “Parasoft helps organizations continuously deliver quality software with its market-proven, integrated suite of automated software testing tools.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 211 contacts → | ||||
Exact match “As AI drives down the cost of producing code, the pressure to ship faster rises, but the time required to review, test, and trust each change hasn’t budged.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 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 | |||||
| 14 | 153 contacts → | ||||
Exact match “Enterprise success is not measured by how fast you release.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 145 contacts → | ||||
Exact match “Devstringx Technologies is a technology company helping businesses build smarter, faster, and more reliable software, powered by AI.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 143 contacts → | ||||
Exact match “Dextrys (now an EPAM company) is China's highest value provider of software development, maintenance, and testing services to technology driven companies around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 135 contacts → | ||||
Exact match “Datagaps builds trust into data - powering confident BI analytics, compliant AI models, and clean, zero-defect migrations at enterprise scale.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 131 contacts → | ||||
Exact match “Aspiritech is a premier quality assurance and testing services company located in metropolitan Chicago.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 131 contacts → | ||||
Exact match “FleXasoft is a Redmond, Washington based software consulting firm specializing in Software Development and Quality Assurance Testing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 123 contacts → | ||||
Exact match “Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 121 contacts → | ||||
Exact match “RTTS is the premier pure-play QA & Testing organization that specializes in Test Automation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 121 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 115 contacts → | ||||
Exact match “Automate your e2e tests without the time-consuming drudgery of test maintenance.” 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 “application testing 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 23 of 487 application testing services based in the United States
See the full list, filter by size, metro and specialty, and access 4,921 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Application testing 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 487 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 “application testing 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 4,921 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.
Application testing 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 “application testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many application testing services are there based in the United States?
RevenueBase identified 487 company matches for application testing 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?
Applause tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most application testing services?
San Francisco leads with 39 company records, followed by New York (23) and Austin (12).
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 4,921 professional contacts with verified work emails tracked across these 487 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 487 application testing services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Application testing services by geography
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom
- Application testing services based in San Francisco, United States
- Application testing services based in Australia
- Application testing services based in Belgium
- Application testing services based in Brazil
- Application testing services based in Canada
- Application testing services based in France
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
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom
Company intelligence · public preview
Top 23 application testing 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 487 matching company records for application testing services based in the United States, with 19,090 tracked contacts and 4,921 verified work emails.
This public preview shows 23 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 23 application testing 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 |  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. | |||||
| 2 |  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. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  Katalonkatalon.comHQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 375 contacts → |
“Katalon True Platform - the AI Platform for Software Quality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sauce Labssaucelabs.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 357 contacts → |
“Sauce Labs AURA (AI-Unified Release Assurance) is the only closed-loop agentic AI platform that authors, runs, and analyzes tests with human oversight.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  Accelqaccelq.comHQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 250 contacts → |
“ACCELQ is the only cloud-based continuous testing platform that seamlessly automates API and web testing without writing a single line of code.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Parasoftparasoft.comHQ: Monrovia, CA, United StatesReported employees: 201-500 | Monrovia, CA, United States | 201-500 | Exact match | 229 contacts → |
“Parasoft helps organizations continuously deliver quality software with its market-proven, integrated suite of automated software testing tools.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Antithesisantithesis.comHQ: Vienna, VA, United StatesReported employees: 51-200 | Vienna, VA, United States | 51-200 | Exact match | 211 contacts → |
“As AI drives down the cost of producing code, the pressure to ship faster rises, but the time required to review, test, and trust each change hasn’t budged.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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. | |||||
| 13 |  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. | |||||
| 14 |  AVO Automationavoautomation.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 153 contacts → |
“Enterprise success is not measured by how fast you release.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Devstringx Technologiesdevstringx.comHQ: Dallas, DE, United StatesReported employees: 51-200 | Dallas, DE, United States | 51-200 | Exact match | 145 contacts → |
“Devstringx Technologies is a technology company helping businesses build smarter, faster, and more reliable software, powered by AI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Dextrysdextrys.comHQ: Newburyport, MA, United StatesReported employees: 501-1,000 | Newburyport, MA, United States | 501-1,000 | Exact match | 143 contacts → |
“Dextrys (now an EPAM company) is China's highest value provider of software development, maintenance, and testing services to technology driven companies around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Datagapsdatagaps.comHQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 135 contacts → |
“Datagaps builds trust into data - powering confident BI analytics, compliant AI models, and clean, zero-defect migrations at enterprise scale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Aspiritechaspiritech.orgHQ: Evanston, IL, United StatesReported employees: 51-200 | Evanston, IL, United States | 51-200 | Exact match | 131 contacts → |
“Aspiritech is a premier quality assurance and testing services company located in metropolitan Chicago.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Flexasoftflexasoft.comHQ: Redmond, WA, United StatesReported employees: 51-200 | Redmond, WA, United States | 51-200 | Exact match | 131 contacts → |
“FleXasoft is a Redmond, Washington based software consulting firm specializing in Software Development and Quality Assurance Testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Impactqaimpactqa.comHQ: Plano, TX, United StatesReported employees: 201-500 | Plano, TX, United States | 201-500 | Exact match | 123 contacts → |
“Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  RTTSrttsweb.comHQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 121 contacts → |
“RTTS is the premier pure-play QA & Testing organization that specializes in Test Automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Appperfect Corpappperfect.comHQ: Cupertino, CA, United StatesReported employees: 51-200 | Cupertino, CA, United States | 51-200 | Exact match | 121 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 |  Rainforest QArainforestqa.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 115 contacts → |
“Automate your e2e tests without the time-consuming drudgery of test maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 487 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Application testing 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
487 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 487 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 ↗
Application testing services by metro
Questions about this company list
What does Exact match mean for application testing 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 application testing services did RevenueBase find based in the United States?
The saved snapshot records 487 matching company records, 19,090 tracked contacts and 4,921 verified emails. The public preview displays 23 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
Application testing services by geography
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom
- Application testing services based in San Francisco, United States
- Application testing services based in Australia
- Application testing services based in Belgium
- Application testing services based in Brazil
- Application testing services based in Canada
- Application testing services based in France
Cite this list
RevenueBase Data Team. Top 23 application testing services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/application-testing-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
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom
Company intelligence · public preview
Top 23 application testing services based in the United States
RevenueBase records 487 matching company records for application testing services based in the United States, with 19,090 tracked contacts and 4,921 verified work emails.
This public preview shows 23 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 23 application testing 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 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | Katalonkatalon.com HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 375 contacts → |
“Katalon True Platform - the AI Platform for Software Quality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sauce Labssaucelabs.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 357 contacts → |
“Sauce Labs AURA (AI-Unified Release Assurance) is the only closed-loop agentic AI platform that authors, runs, and analyzes tests with human oversight.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | Accelqaccelq.com HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 250 contacts → |
“ACCELQ is the only cloud-based continuous testing platform that seamlessly automates API and web testing without writing a single line of code.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Parasoftparasoft.com HQ: Monrovia, CA, United StatesReported employees: 201-500 | Monrovia, CA, United States | 201-500 | Exact match | 229 contacts → |
“Parasoft helps organizations continuously deliver quality software with its market-proven, integrated suite of automated software testing tools.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Antithesisantithesis.com HQ: Vienna, VA, United StatesReported employees: 51-200 | Vienna, VA, United States | 51-200 | Exact match | 211 contacts → |
“As AI drives down the cost of producing code, the pressure to ship faster rises, but the time required to review, test, and trust each change hasn’t budged.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | 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. | |||||
| 14 | AVO Automationavoautomation.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 153 contacts → |
“Enterprise success is not measured by how fast you release.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Devstringx Technologiesdevstringx.com HQ: Dallas, DE, United StatesReported employees: 51-200 | Dallas, DE, United States | 51-200 | Exact match | 145 contacts → |
“Devstringx Technologies is a technology company helping businesses build smarter, faster, and more reliable software, powered by AI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Dextrysdextrys.com HQ: Newburyport, MA, United StatesReported employees: 501-1,000 | Newburyport, MA, United States | 501-1,000 | Exact match | 143 contacts → |
“Dextrys (now an EPAM company) is China's highest value provider of software development, maintenance, and testing services to technology driven companies around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Datagapsdatagaps.com HQ: Herndon, VA, United StatesReported employees: 51-200 | Herndon, VA, United States | 51-200 | Exact match | 135 contacts → |
“Datagaps builds trust into data - powering confident BI analytics, compliant AI models, and clean, zero-defect migrations at enterprise scale.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Aspiritechaspiritech.org HQ: Evanston, IL, United StatesReported employees: 51-200 | Evanston, IL, United States | 51-200 | Exact match | 131 contacts → |
“Aspiritech is a premier quality assurance and testing services company located in metropolitan Chicago.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Flexasoftflexasoft.com HQ: Redmond, WA, United StatesReported employees: 51-200 | Redmond, WA, United States | 51-200 | Exact match | 131 contacts → |
“FleXasoft is a Redmond, Washington based software consulting firm specializing in Software Development and Quality Assurance Testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Impactqaimpactqa.com HQ: Plano, TX, United StatesReported employees: 201-500 | Plano, TX, United States | 201-500 | Exact match | 123 contacts → |
“Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | RTTSrttsweb.com HQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 121 contacts → |
“RTTS is the premier pure-play QA & Testing organization that specializes in Test Automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Appperfect Corpappperfect.com HQ: Cupertino, CA, United StatesReported employees: 51-200 | Cupertino, CA, United States | 51-200 | Exact match | 121 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Rainforest QArainforestqa.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 115 contacts → |
“Automate your e2e tests without the time-consuming drudgery of test maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 23 of 487 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Application testing 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
487 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 487 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 ↗
Application testing services by metro
Questions about this company list
What does Exact match mean for application testing 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 application testing services did RevenueBase find based in the United States?
The saved snapshot records 487 matching company records, 19,090 tracked contacts and 4,921 verified emails. The public preview displays 23 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
Application testing services by geography
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom
- Application testing services based in San Francisco, United States
- Application testing services based in Australia
- Application testing services based in Belgium
- Application testing services based in Brazil
- Application testing services based in Canada
- Application testing services based in France
Cite this list
RevenueBase Data Team. Top 23 application testing services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/application-testing-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
- Application testing services based in Ahmedabad, India
- Application testing services based in Bangalore, India
- Application testing services based in Hyderabad, India
- Application testing services based in Noida, India
- Application testing services based in Pune, India
- Application testing services based in London, United Kingdom