Company lists · Data refreshed November 2026

Top 22 Web application testing services based in the United States

RevenueBase identified 376 company matches for web application testing services associated with the United States as of November 2026 and tracks 27,520 professional contacts across them, including 7,624 with verified work emails. San Francisco is the largest hub.

This list covers company matches for web 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
376Companies
27,520Contacts tracked
7,624Verified emails
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The 22 largest web application testing services based in the United States

Ranked by team size
Top 22 of 376 company matches for web application testing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFramingham, MA, United StatesHQ recorded Nov 6, 2026201-5001,463 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPleasanton, CA, United StatesHQ recorded Nov 6, 20261,001-5,000885 contacts →

Exact match

“QASource is a leading provider of outsourced software quality engineering services, offering scalable and customizable QA solutions to clients worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 2026501-1,000437 contacts →

Exact match

“We are celebrating 30 years of testing excellence and innovation at LogiGear, we're proud to be a cornerstone in our clients' journeys, delivering confidence not just in our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFalls Church, VA, United StatesHQ recorded Nov 6, 202651-200419 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500375 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
6Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 2026201-500252 contacts →

Exact match

“Quality in An AI Driven World.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDallas, TX, United StatesHQ recorded Nov 6, 2026201-500250 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
8Exact matchAkron, VA, United StatesHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMonrovia, CA, United StatesHQ recorded Nov 6, 2026201-500229 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
10Exact matchNY, United StatesHQ recorded Nov 6, 2026201-500199 contacts →

Exact match

“Kualitatem empowers businesses to deliver quality software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBoise, ID, United StatesHQ recorded Nov 6, 202651-200173 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
12Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-200153 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
13Exact matchEvanston, IL, United StatesHQ recorded Nov 6, 202651-200131 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
14Exact matchRedmond, WA, United StatesHQ recorded Nov 6, 202651-200131 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
15Exact matchPlano, TX, United StatesHQ recorded Nov 6, 2026201-500123 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNY, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCupertino, CA, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-50115 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
19Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“Sembi empowers organizations with world-class solutions for product quality and security management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchStamford, CT, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“Webomates provides a revolutionary SaaS-based patented testing service called Webomates CQ which is aimed at significantly improving the quality of production software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAurora, CO, United StatesHQ recorded Nov 6, 202651-20097 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchReston, VA, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Since 1988, TrustedQA’s mission has been to help our customers build and deliver quality software more efficiently, effectively, and securely.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 22 of 376 web application testing services based in the United States

See the full list, filter by size, metro and specialty, and access 7,624 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Web application testing services based in the United States at a glance

As of Nov 6, 2026
27.7%Verified-email coverage
73.2Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
157
11-50
104
51-200
83
201-500
18
501-1,000
8
1,001-5,000
4
10001+
2

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 376 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 “web 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 7,624 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.

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 “web application testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many web application testing services are there based in the United States?

RevenueBase identified 376 company matches for web 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 web application testing services?

San Francisco leads with 20 company records, followed by New York (13) and Atlanta (8).

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 7,624 professional contacts with verified work emails tracked across these 376 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.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.