Company lists · Data refreshed November 2026

Top 25 Api testing service providers worldwide

RevenueBase identified 1,250 company matches for api testing service providers worldwide as of November 2026 and tracks 30,946 professional contacts across them, including 7,071 with verified work emails. India is the largest market and London the largest hub.

This list covers company matches for api testing service providers 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 api testing service providers 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
1,250Companies
30,946Contacts tracked
7,071Verified emails
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The 25 largest api testing service providers worldwide

Ranked by team size
Top 25 of 1,250 company matches for api testing service providers 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 matchMumbai, IndiaHQ recorded Nov 6, 20261,001-5,0001,744 contacts →

Exact match

“AQM Technologies Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact matchSomerville, United StatesHQ recorded Nov 6, 2026501-1,000959 contacts →

Exact match

“SmartBear delivers application integrity for modern tech stacks, ensuring continuous, measurable assurance that software just works as intended – with governance to operate at AI…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchSunnyvale, United StatesHQ recorded Nov 6, 2026201-500461 contacts →

Exact match

“ThinkSys is a QA outsourcing and software testing company for SaaS, FinTech, and Healthcare engineering teams that need reliable quality at scale.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact matchCluj-napoca, RomaniaHQ recorded Nov 6, 2026201-500372 contacts →

Exact match

“Quantic Lab is an award-winning company with 20 years of experience in high-quality testing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHyderabad, IndiaHQ recorded Nov 6, 202651-200370 contacts →

Exact match

“W3Softech is an Independent QA services company specializing in Functional, Automation, non-functional testing services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchChennai, IndiaHQ recorded Nov 6, 2026201-500316 contacts →

Exact match

“Sybrant is a leader in Independent Software Testing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchBangalore, IndiaHQ recorded Nov 6, 2026201-500273 contacts →

Exact match

“Qapitol QA Testing Services is a new age Quality Engineering company that specialises in Digital Transformation Testing encompassing all customer touch points that include Mobile…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact 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
20Exact 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
21Exact matchMalmö, SwedenHQ recorded Nov 6, 2026201-500235 contacts →

Exact match

“A SUSTAINABLE DIGITAL EXPERIENCE!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchHelvoirt, NetherlandsHQ recorded Nov 6, 2026201-500221 contacts →

Exact match

“De software waarop miljoenen mensen vertrouwen, moet gewoon werken.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchNoida, MI, IndiaHQ recorded Nov 6, 202651-200195 contacts →

Exact match

“We exist to protect what matters most - your reputation, your users' trust, and your business success.”

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

Showing 25 of 1,250 api testing service providers worldwide

See the full list, filter by size, metro and specialty, and access 7,071 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api testing service providers worldwide at a glance

As of Nov 6, 2026
22.8%Verified-email coverage
24.8Average contacts per company
11-50Median size (employees)
2.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
619
11-50
384
51-200
167
201-500
52
501-1,000
15
1,001-5,000
5
10001+
2

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 api testing service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “api testing service providers” 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 7,071 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.

Api testing service providers by location

9 lists · largest first

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

Countries

Cities

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

How many api testing service providers are there worldwide?

RevenueBase identified 1,250 company matches for api testing service providers 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 api testing service providers?

India leads with 237 companies, followed by the United States (176) and the United Kingdom (88). Every api testing service providers list by country and city is linked on this page.

Which city has the most api testing service providers?

London leads with 36 company records, followed by Bangalore (33) and Pune (25).

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 7,071 professional contacts with verified work emails tracked across these 1,250 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.