Company lists · Data refreshed September 2026

Top 25 Manual software testing services based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 132 companies tracked

RevenueBase identified 132 company matches for manual software testing services associated with the United Kingdom as of September 2026 and tracks 2,688 professional contacts across them, including 317 with verified work emails. London is the largest hub.

This list covers company matches for manual software testing services 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 September 28, 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 Sep 28, 2026 How this list was built

132Companies

2,688Contacts tracked

317Verified emails

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The 25 largest manual software testing services based in the United Kingdom

Ranked by team size

Top 25 of 132 company matches for manual software testing services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	2i	Exact match	Edinburgh, United KingdomHQ recorded Sep 28, 2026	201-500	248 contacts →
	Exact match “We help CTOs, Programme Directors, and Engineering Leaders deliver complex technology change safely, on time, under control, and at sustainable cost.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Bugfinders	Exact match	Cheltenham, United KingdomHQ recorded Sep 28, 2026	11-50	91 contacts →
	Exact match “BugFinders is a world wide leading crowdsourced software testing company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Zoonou	Exact match	Eastbourne, United KingdomHQ recorded Sep 28, 2026	11-50	45 contacts →
	Exact match “Zoonou is one of the UK’s leading software testing companies; we’re a Certified B Corporation® and 100% employee-owned.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Calibrecode Solutions LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “CalibreCode provides on-demand and integrated Quality Assurance Solutions for Product Management & Engineering teams.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Kudos Games Services	Exact match	Doncaster, United KingdomHQ recorded Sep 28, 2026	51-200	37 contacts →
	Exact match “At Kudos QA, we are committed to delivering top-tier software and gaming quality assurance, ensuring optimal performance, reliability, and user satisfaction across diverse…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Original Software	Exact match	Basingstoke, United KingdomHQ recorded Sep 28, 2026	51-200	28 contacts →
	Exact match “Step into the future of testing today!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Cell Software Services LTD	Exact match	Brighton, United KingdomHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Cell Software is an expert provider of software solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	SMQA	Exact match	Canterbury, United KingdomHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “SMQA is an established IT Consulting services company specialised in Quality Assurance, Performance Engineering and DevOps helping clients providing precise, scalable, quality…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	CQE	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “A team of innovative Technology Leaders and Quality Engineers, we take a solution-led approach to help our clients engineer quality into all stages of their product lifecycle.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	QATTS	Exact match	Ilford, United KingdomHQ recorded Sep 28, 2026	11-50	10 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 · Sep 28, 2026 · View company records in RevenueBase
11	Emerge QA	Exact match	South-west England, United KingdomHQ recorded Sep 28, 2026	11-50	9 contacts →
	Exact match “Emerge QA are a team of QA testing veterans, with team members working within the industry over the last 10 years from indie titles to games!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Ingenuity	Exact match	Gloucester, United KingdomHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “We specialise in software testing, automation, data migration and ProductWriter, bringing together a unique blend of technical and industry knowledge.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Fortitude 17 Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	6 contacts →
	Exact match “Assurance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Gerrard Consulting	Exact match	Maidenhead, United KingdomHQ recorded Sep 28, 2026	1-10	5 contacts →
	Exact match “Gerrard Consulting has been offering software development and testing-related services since 1984.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Proper QA	Exact match	Edinburgh, United KingdomHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Founded in 2011 by industry veteran Nick Barrett, Proper QA is a quality assurance service provider, specialising in quality assurance testing and the creation of innovative test…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Seedetail	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Sep 28, 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 · Sep 28, 2026 · View company records in RevenueBase
17	Buitech	Exact match	Witney, United KingdomHQ recorded Sep 28, 2026	1-10	3 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 · Sep 28, 2026 · View company records in RevenueBase
18	Zerocode	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Zerocode helps product development teams integrate automated quality assurance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Bizsystems	Exact match	Cheltenham, United KingdomHQ recorded Sep 28, 2026	1-10	2 contacts →
	Exact match “Bizsystems Limited is a leading provider of software testing services specifically designed for the Microsoft Dynamics 365 family of applications.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Renville Consulting LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Renville is a non-functional testing consultancy specialising in large, complex, enterprise engagements with particular focus in the oil and gas industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Fincity Consultancy Services Limited	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “We work with you to review your processes and deliver a range of Software Testing and Quality Assurance services to increase efficiency, improve solution quality and reduce your…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Calleo Software	Exact match	Borehamwood, United KingdomHQ recorded Sep 28, 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 · Sep 28, 2026 · View company records in RevenueBase
23	Alan Moulsdale Consulting Limited	Exact match	Bishop’s Stortford, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Consultancy specialising in Test Strategy, Performance Engineering and Testing, Functional Test Automation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	HOW QA	Exact match	Norwich, United KingdomHQ recorded Sep 28, 2026	1-10	1 contacts →
	Exact match “Hi, we’re How QA.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Timztos Solutions	Exact match	London, United KingdomHQ recorded Sep 28, 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 · Sep 28, 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 “manual software 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 25 of 132 manual software testing services based in the United Kingdom

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Manual software testing services based in the United Kingdom at a glance

As of Sep 28, 2026

11.8%Verified-email coverage

20.4Average contacts per company

1-10Median size (employees)

34.8%Largest-city concentration · London

Sep 28, 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 132 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 “manual software 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 317 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 September 28, 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 “manual software testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many manual software testing services are there based in the United Kingdom?

RevenueBase identified 132 company matches for manual software testing services associated with the United Kingdom as of September 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?

2i tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most manual software testing services?

London leads with 46 company records, followed by Manchester (8) and Leeds (3).

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 317 professional contacts with verified work emails tracked across these 132 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 September 28, 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.