Company lists · Data refreshed November 2026

Top 25 Website testing agencies worldwide

RevenueBase identified 1,007 company matches for website testing agencies worldwide as of November 2026 and tracks 22,123 professional contacts across them, including 5,253 with verified work emails. India is the largest market and London the largest hub.

This list covers company matches for website testing agencies worldwide, 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. Country and city lists for website testing agencies follow the table.

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
1,007Companies
22,123Contacts tracked
5,253Verified emails
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The 25 largest website testing agencies worldwide

Ranked by team size
Top 25 of 1,007 company matches for website testing agencies worldwide, 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 matchDublin, IrelandHQ recorded Nov 6, 20261,001-5,0001,826 contacts →

Exact match

“BrowserStack is the world’s leading software testing platform, powered by AI and trusted by over teams, including Amazon, Microsoft, and NVIDIA, to deliver quality software at…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchDecatur, United StatesHQ recorded Nov 6, 20261,001-5,0001,071 contacts →

Exact match

“a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBangalore, IndiaHQ recorded Nov 6, 2026501-1,000512 contacts →

Exact match

“Moolya prevents bugs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000426 contacts →

Exact match

“At Resillion, we're more than just a global leader in quality engineering, testing, and cyber security – we're your dedicated partner from the start of your project to its…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchUnited StatesHQ recorded Nov 6, 2026501-1,000420 contacts →

Exact match

“Quality Professionals (Q-Pros) is a global independent software Quality Assurance and Testing services provider supporting enterprise and government organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAtlanta, United StatesHQ recorded Nov 6, 2026201-500395 contacts →

Exact match

“Tescom is one of the world's largest independent Software Quality Assurance companies and a pioneer in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMumbai, IndiaHQ recorded Nov 6, 2026201-500368 contacts →

Exact match

“With a team comprising of the best QA minds and Certified Software Testing Specialists, we provide seamless Quality Assurance & Software testing solutions for your DESKTOP, WEB…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew Delhi, IndiaHQ recorded Nov 6, 2026201-500288 contacts →

Exact match

“Running an A/B testing program is tricky.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBangalore, IndiaHQ recorded Nov 6, 2026201-500281 contacts →

Exact match

“Qualitrix is a Trust Engineering company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMarkham, ON, CanadaHQ recorded Nov 6, 2026201-500264 contacts →

Exact match

“Miipe is an independent software testing consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPune, IndiaHQ recorded Nov 6, 2026201-500246 contacts →

Exact match

“Welcome to Qualitia - The Pioneers in Simplifying Test Automation!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSantiago, ChileHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“SEnTRA es una empresa que brinda servicios de diseño y construcción de herramientas de certificación para el área de QA y desarrollamos Test de Esfuerzo o de Stress para…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200200 contacts →

Exact match

“EchoLogyx started with a simple idea – provide test development and QA support to the Conversion Rate Optimization teams.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchBangalore, IndiaHQ recorded Nov 6, 202651-200189 contacts →

Exact match

“QSG (Quality Service Group) is an independent Software testing and test automation company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-200187 contacts →

Exact match

“Virgosol is an innovation-driven technology company that develops next-generation QA products and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMilan, ItalyHQ recorded Nov 6, 202651-200182 contacts →

Exact match

“UNGUESS is a cutting-edge crowdsourcing platform that offers quick, effective tests and real insights whenever you need them.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNoida, TX, IndiaHQ recorded Nov 6, 202651-200182 contacts →

Exact match

“About HikeQA We are an independent Quality Assurance company who is successfully delivering robust QA and testing solutions for every type of software and mobile applications for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBangkok, ThailandHQ recorded Nov 6, 2026201-500178 contacts →

Exact match

“Founded in 2019, Doppio Tech specializes in Software Quality Assurance, offering Manual Testing, Automation, Performance Testing, and Test Transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSaint-jérôme, QC, CanadaHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

“Huwiz Solutions is a group of Game Industry veterans sharing expansive experience in Quality Assurance and Project Management aiming to add value to the design and production of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHelsinki, FinlandHQ recorded Nov 6, 202651-200157 contacts →

Exact match

“Q-Factory Oy on Suomen suurin riippumaton laadunvarmistukseen ja testaukseen sekä saavutettavuuspalveluihin erikoistunut ICT-alan palveluyritys.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMumbai, IndiaHQ recorded Nov 6, 2026201-500154 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchTel Aviv, IsraelHQ recorded Nov 6, 2026201-500153 contacts →

Exact match

“Tesnet Group is Israel leading specialist software testing company.”

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

Showing 25 of 1,007 website testing agencies worldwide

See the full list, filter by size, metro and specialty, and access 5,253 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Website testing agencies worldwide at a glance

As of Nov 6, 2026
23.7%Verified-email coverage
22.0Average contacts per company
1-10Median size (employees)
3.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
561
11-50
278
51-200
114
201-500
36
501-1,000
11
1,001-5,000
3
10001+
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for website testing agencies are linked below.
What qualifies
Company records worldwide whose business descriptions match “website testing agencies” 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. 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 5,253 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.

Website testing agencies by location

5 lists · largest first

Every Website testing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many website testing agencies are there worldwide?

RevenueBase identified 1,007 company matches for website testing agencies worldwide 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?

Browserstack tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most website testing agencies?

India leads with 167 companies, followed by the United States (144) and the United Kingdom (77). Every website testing agencies list by country and city is linked on this page.

Which city has the most website testing agencies?

London leads with 36 company records, followed by Pune (21) and Bangalore (18).

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 5,253 professional contacts with verified work emails tracked across these 1,007 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.