Company lists · Data refreshed October 2026

Top 19 Ui testing software companies based in the United Kingdom

Name: Ui testing software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 20, 2026 79 companies tracked

RevenueBase identified 79 company matches for ui testing software companies associated with the United Kingdom as of October 2026 and tracks 504 professional contacts across them, including 76 with verified work emails. London is the largest hub.

This list covers company matches for ui testing software companies associated with the United Kingdom, 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 October 20, 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 Oct 20, 2026 How this list was built

79Companies

504Contacts tracked

76Verified emails

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The 19 largest ui testing software companies based in the United Kingdom

Ranked by team size

Top 19 of 79 company matches for ui testing software companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Virtuoso QA	Exact match	London, United KingdomHQ recorded Oct 20, 2026	51-200	91 contacts →
	Exact match “Virtuoso QA pushes the boundaries of traditional software test automation and quality assurance.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2	Bugfinders	Exact match	Cheltenham, United KingdomHQ recorded Oct 20, 2026	11-50	88 contacts →
	Exact match “BugFinders is a world wide leading crowdsourced software testing company.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3	Original Software	Exact match	Basingstoke, United KingdomHQ recorded Oct 20, 2026	51-200	29 contacts →
	Exact match “Step into the future of testing today!” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4	Meticulous	Exact match	London, United KingdomHQ recorded Oct 20, 2026	11-50	26 contacts →
	Exact match “Meticulous enables teams to leverage AI agents to ship fast without breaking things.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5	ATE Solutions LTD	Exact match	Blisworth, United KingdomHQ recorded Oct 20, 2026	11-50	17 contacts →
	Exact match “We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6	QATTS	Exact match	Ilford, United KingdomHQ recorded Oct 20, 2026	11-50	9 contacts →
	Exact match “Low Code, Enterprise Grade, end-to-end Test Automation Software built for progressive businesses #WebTesting #APITesting #MobileTesting #FunctionalTesting” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7	T-Plan	Exact match	Southwick, United KingdomHQ recorded Oct 20, 2026	11-50	8 contacts →
	Exact match “Founded in T-Plan developed a test management tool for the Bank of England, which ensured that applications of critical importance to the UK and Global economy were developed…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8	Loadfocus	Exact match	London, United KingdomHQ recorded Oct 20, 2026	11-50	5 contacts →
	Exact match “LoadFocus is a leading cloud-based performance testing platform that ensures your digital solutions perform at their best.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9	Maxtaf	Exact match	London, United KingdomHQ recorded Oct 20, 2026	11-50	5 contacts →
	Exact match “MaxTAF is a cutting-edge SaaS platform designed to simplify and amplify any test automation project.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10	Evaluat	Exact match	London, United KingdomHQ recorded Oct 20, 2026	1-10	5 contacts →
	Exact match “Evaluat is a real-browser performance testing platform that runs each virtual user in an isolated browser instance, capturing Core Web Vitals and Navigation Timing metrics under…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11	Moropo	Exact match	Bristol, United KingdomHQ recorded Oct 20, 2026	11-50	4 contacts →
	Exact match “Test more of your app - in 10x less time.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12	Doesqa	Exact match	Leamington Spa, United KingdomHQ recorded Oct 20, 2026	1-10	4 contacts →
	Exact match “All the power of a traditional automation testing framework but with a simple, intuitive, and fun drag-and-drop user interface.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
13	Seedetail	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Oct 20, 2026	1-10	3 contacts →
	Exact match “see:detail is an award winning independent software testing company that provides sustainable employment for people with an autism spectrum condition or Asperger's syndrome.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
14	Odin Technology	Exact match	Berkhamsted, United KingdomHQ recorded Oct 20, 2026	1-10	3 contacts →
	Exact match “Test automation is an imperative part of modern application development.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
15	Buitech	Exact match	Witney, United KingdomHQ recorded Oct 20, 2026	1-10	2 contacts →
	Exact match “Buitech is a digital testing company, we test your software, website and apps to give you confidence in your technology.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
16	Tesults	Exact match	London, United KingdomHQ recorded Oct 20, 2026	1-10	1 contacts →
	Exact match “Tesults is test results.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
17	reflow.io	Exact match	London, United KingdomHQ recorded Oct 20, 2026	1-10	1 contacts →
	Exact match “Reflow is an automated web testing tool that helps users rapidly create and effortlessly maintain resilient end-to-end tests.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
18	Calleo Software	Exact match	Borehamwood, United KingdomHQ recorded Oct 20, 2026	1-10	1 contacts →
	Exact match “Calleo Software are proud OpenText (formerly Micro Focus) Software Gold Partners, selling the full range of over 30 software testing * With 50% of the global testing software…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
19	Timztos Solutions	Exact match	London, United KingdomHQ recorded Oct 20, 2026	1-10	1 contacts →
	Exact match “Timztos Solutions is a leading provider of automation and quality assurance solutions, empowering businesses to deliver high-quality software products efficiently and effectively.” Recorded in the RevenueBase company graph · Oct 20, 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 “ui testing software companies”. 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 19 of 79 ui testing software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 76 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ui testing software companies based in the United Kingdom at a glance

As of Oct 20, 2026

15.1%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

38.0%Largest-city concentration · London

Oct 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 79 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 Kingdom whose business descriptions match “ui testing software companies” 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 76 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 October 20, 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.

Ui testing software companies by metro

Ui testing software companies in London30

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

How many ui testing software companies are there based in the United Kingdom?

RevenueBase identified 79 company matches for ui testing software companies associated with the United Kingdom as of October 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?

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

Which city has the most ui testing software companies?

London leads with 30 company records, followed by Manchester (3) and Basingstoke (2).

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 76 professional contacts with verified work emails tracked across these 79 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 October 20, 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.