Company lists · Data refreshed September 2026
Top 22 Quality assurance software companies based in the United Kingdom
RevenueBase identified 111 quality assurance software companies headquartered in the United Kingdom as of September 2026 and tracks 1,132 professional contacts across them, including 415 with verified work emails and 87 with mobile numbers. London is the largest hub.
This list covers quality assurance software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 22 largest quality assurance software companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 248 | ||||
“We help CTOs, Programme Directors, and Engineering Leaders deliver complex technology change safely, on time, under control, and at sustainable cost.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | Virtuoso QAStrong evidence | 85 | |||
“Virtuoso QA pushes the boundaries of traditional software test automation and quality assurance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 70 | ||||
“Qniverse is your trusted Quality Assurance service partner that stands at the forefront of a paradigm shift in QA by redefining quality.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Zigzag QAPartial evidence | 47 | |||
“ZigZag QA is your trusted worldwide quality leader, offering true global reach and unrivaled expertise to reduce risk and efforts.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 39 | ||||
“CalibreCode provides on-demand and integrated Quality Assurance Solutions for Product Management & Engineering teams.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | TendableStrong evidence | 37 | |||
“Tendable offers a complete quality assurance solution to provide health and social care professionals the appropriate tools they need for quality audit, insight and assurance…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 37 | ||||
“At Kudos QA, we are committed to delivering top-tier software and gaming quality assurance, ensuring optimal performance, reliability, and user satisfaction across diverse…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Original SoftwareIndirect evidence | 28 | |||
“Step into the future of testing today!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | SMQAStrong evidence | 14 | |||
“SMQA is an established IT Consulting services company specialised in Quality Assurance, Performance Engineering and DevOps helping clients providing precise, scalable, quality…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | ExperimentusStrong evidence | 9 | |||
“We help organisations build, implement and improve software quality processes that will enable them to measure and manage new and existing apps or systems more effectively.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“We build software development tools to help our customers build high-quality reliable software, accelerate development and deliver great products.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“ScopeMaster.com is the world's first automated software requirements analyser.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Zigzag Associates LTDStrong evidence | 5 | |||
“Founded in 2009, Zigzag is a privately-owned global leader in Quality Assurance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | GenomeStrong evidence | 4 | |||
“Genome is a digital healthcare company developing an advanced, integrated quality assurance and improvement software designed to support senior clinical teams, managers, and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Proper QAStrong evidence | 4 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“DQA provides specialist quality assurance consultancy, auditing, and validation services to pharmaceutical, biotech, medical device, and healthcare organisations worldwide.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Odin TechnologyIndirect evidence | 3 | |||
“Test automation is an imperative part of modern application development.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“Zerocode helps product development teams integrate automated quality assurance.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 | ||||
“Introducing a unique Quality Management software solution for the engineering sector: Q-Tower We have designed Q-Tower to specifically integrate and manage Quality Management…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Fincity Consultancy Services LimitedStrong evidence | 1 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Verum Solutions LTDPartial evidence | 1 | |||
“To address industry concerns regarding escalation of Oil & Gas project costs associated with poor quality during construction, Verum Solutions Ltd has developed a cloud-based…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 | ||||
“Timztos Solutions is a leading provider of automation and quality assurance solutions, empowering businesses to deliver high-quality software products efficiently and effectively.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 22 of 111 quality assurance software companies based in the United Kingdom
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Quality assurance software companies based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among quality assurance software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- 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
- Companies headquartered in the United Kingdom whose own description of what they do matches “quality assurance software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among quality assurance software companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 415 across the full list. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Quality assurance software companies by metro
- Quality assurance software companies in London43
Frequently asked
How many quality assurance software companies are there based in the United Kingdom?
RevenueBase identified 111 quality assurance software companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
2i, headquartered in Edinburgh, tops this list with the largest team on record.
Which city has the most quality assurance software companies?
London leads with 43 headquartered companies, followed by Manchester (6) and Guildford (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 415 verified decision-maker contacts tracked across these 111 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.
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