Top Software Testing Companies in the United Kingdom
From London’s fintech leaders and the Thames Valley’s enterprise tech corridor to Scotland’s thriving games studios in Edinburgh and Dundee, UK software testing firms support products used worldwide.
On Clutch, you can compare verified providers by client reviews, case studies, certifications, and domain expertise to find a partner who fits your stack and standards. Our analysts validate testimonials and portfolios, so you can shortlist teams skilled in automation, performance, security, and compliance with confidence. Use filters for budget, hourly rate, location, industry, and certifications (ISTQB, ISO 27001) to narrow the field fast. Explore the broader market or go local here:
• Top Software Testing Companies
• Software Testing Companies in London
• Software Testing Companies in Birmingham
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Featured
What are Featured Providers?
$5,000+Undisclosed50 - 249Serves United KingdomServices provided
See all 60 projectsQA Wolf is a company specializing in Application Quality Assurance with a focus on automated testing services. Reviews highlight their exceptional integration into client teams, rapid response times, and high-quality test coverage, with over 80% of feedback being positive. Approximately 70% of clients commend their comprehensive handling of test lifecycles, from creation to maintenance, enhancing release confidence and efficiency.
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UndisclosedUndisclosed50 - 249Westminster, London, England
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Established in 2022, Canvas Reply is an user experience company. The midsize team specializes in UX/UI Design and Graphic Design.
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UndisclosedUndisclosed50 - 249London, England
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DATAMTX LLC, a business intelligence company, was launched in 1993. The midsize team specializes in BI & big data consulting & SI and ERP consulting and SI.
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UndisclosedUndisclosed50 - 249Reading, England
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SureCloud is a Cybersecurity company. The team specializes in Cybersecurity and BI & big data consulting & SI, and the agency is in Reading, England and City of London, England.
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UndisclosedUndisclosed50 - 249London, England
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IT strategy consulting company The Open Geospatial Consortium (OGC) is in Arlington, Virginia and London, England. They offer IT strategy consulting and cloud consulting & SI.
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UndisclosedUndisclosed50 - 249Harrow on the Hill, England
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UX company Ab Ovo, Inc. Was founded in 2006. The agency offers UX/UI Design and BI & big data consulting & SI.
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UndisclosedUndisclosed50 - 249London, England
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Launched in 2005, Excelencia is a cloud consulting & SI company. Located in London, England and Austin, Texas, the team provides cloud consulting & SI and ERP consulting and SI.
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UndisclosedUndisclosed2 - 9Glasgow , Scotland
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Business Consulting company Sheeran IT Services was founded in 2003. The company provides Business Consulting and Application Testing, and is small.
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UndisclosedUndisclosed2 - 9Leeds, England
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Located in Leeds, England, Compliance Studio Ltd is a small mobile application development firm. The team focuses on Mobile App Development and Social Media Marketing.
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UndisclosedUndisclosed2 - 9London, England
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SEO agency PGWD Ltd. Website Design specializes in Search Engine Optimization and Web Design. They were established in 2018.
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UndisclosedUndisclosed2 - 9Bristol, England
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Based in Bristol, England, Red Goat is a Cybersecurity company. Their services include Cybersecurity and Application Testing.
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UndisclosedUndisclosed10 - 49London, England
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Serrula Research Ltd is a small Market Research company based in London, England. The team focuses on Market Research and Product Design.
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UndisclosedUndisclosed10 - 49Edinburgh , Scotland
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Civic UK is an user experience company. They are located in Edinburgh , Scotland and have small team of experts. Their services include UX/UI Design and Branding.
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UndisclosedUndisclosed10 - 49Belfast, Northern Ireland
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Yarra Software, a small business intelligence company, is headquartered in Belfast, Northern Ireland. The team provides BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Hertfordshire, England, England
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IOCO UK | iOCO Solutions Limited is a big data company founded in 2008. Located in Hertfordshire, England, England, the team offers BI & big data consulting & SI and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49Much Dewchurch, England
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Located in Much Dewchurch, England, Hamiltonian Dynamics is a Cybersecurity company. Founded in 2020, the team provides Cybersecurity and Application Testing.
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UndisclosedUndisclosed10 - 49London, England
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Enterprise App Modernization company Camwood Ltd. Offers Enterprise App Modernization and cloud consulting & SI. They are headquartered in London, England.
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UndisclosedUndisclosed10 - 49City of London, England
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Jackson Swiss Partners is a City of London, England-based big data analytics company. They specialize in BI & big data consulting & SI and Application Testing and were founded in 2018.
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UndisclosedUndisclosed10 - 49City of London, England
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Headquartered in City of London, England and Dehradun, India, RedHunt Labs is a small Cybersecurity company. Their services include Cybersecurity and BI & big data consulting & SI.
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UndisclosedUndisclosed10 - 49Birmingham, England
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OmniCyber Security is a Cybersecurity company founded in 2015. Their team offers Cybersecurity and IT managed services.
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UndisclosedUndisclosed250 - 999City of London, England
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InnoWave is a Cybersecurity company launched in 2008. Their team focuses on Cybersecurity and UX/UI Design.
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UndisclosedUndisclosed250 - 999City of London, England
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IdeyaLabs is an Advertising company launched in 2019. Their team offers Advertising and UX/UI Design.
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UndisclosedUndisclosed250 - 999London, England
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Alcor Solutions, Inc., an IT strategy consulting company, was established in 2008. The midsize team offers IT strategy consulting and cloud consulting & SI.
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UndisclosedUndisclosed250 - 999London, England
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Insead Tech is a midsize e-commerce development company based in London, England. The team focuses on E-Commerce Development and ERP consulting and SI.
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UndisclosedUndisclosed50 - 249Manchester, England
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SmashCloud is an user experience company. Their midsize team of employees is located in Toronto, Canada and Lahore, Pakistan. Their team offers UX/UI Design and Custom Software Development.
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UndisclosedUndisclosed2 - 9Leeds , England
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TrueNorth IT Ltd is a software development firm established in 2014. Based in Leeds , England, the team specializes in Custom Software Development and IoT development.
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UndisclosedUndisclosed2 - 9London, England
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Located in London, England, TestPro Consulting Ltd is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.
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UndisclosedUndisclosed2 - 9Nelson, England
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Blue Border Limited, an IT managed services company, is headquartered in Nelson, England and London, England. Launched in 2015, the team provides IT managed services and Application Testing.
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UndisclosedUndisclosed2 - 9Croydon , England
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Established in 2015, TopOneCRM Limited is a cloud consulting & SI company. Their services include cloud consulting & SI and CRM consulting and SI.
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UndisclosedUndisclosed2 - 9Kirby Cross, England
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GML Networking Technologies is a small web design company launched in 1998. Their services include Web Design and cloud consulting & SI.
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UndisclosedUndisclosed2 - 9London, England
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ResilienC is a PR firm. Located in London, England, the company was launched in 2022. Their team provides Public Relations and IT managed services.
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UndisclosedUndisclosed2 - 9London, England
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Founded in 2011, 2|SEC Consulting is a Cybersecurity company. The small team focuses on Cybersecurity and Application Testing.
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UndisclosedUndisclosed2 - 9Manchester, England
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Fortress Lab, a Cybersecurity company, was established in 2015. The team specializes in Cybersecurity and Web Development and is based in Manchester, England.
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UndisclosedUndisclosed10 - 49Coventry, England
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SMQA Limited is a small ERP consulting and SI company based in Coventry, England. The team provides ERP consulting and SI and Cybersecurity.
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UndisclosedUndisclosed10 - 49City of London, England
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SSL247 is a Cybersecurity company. Founded in 2003, the team focuses on Cybersecurity and BI & big data consulting & SI. The agency is located in City of London, England.
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UndisclosedUndisclosed2 - 9Glasgow , Scotland
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0141 Design is a web design company. They are headquartered in Glasgow , Scotland and have small team. They provide Web Design and Web Development.
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$10,000+$25 - $49 / hr50 - 249London, England
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See all 12 projectsPlexteq is an applications testing and development company, excelling in delivering comprehensive software quality testing and application quality assurance services. Reviews indicate 100% positive feedback, highlighting their responsiveness and adaptability to changing project needs. Their ability to effectively manage dynamic priorities and deliver timely results is frequently praised.
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UndisclosedUndisclosed50 - 249London, England
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Based in London, England, Tangent Marketing Services is a Digital Strategy company. The team focuses on Digital Strategy and UX/UI Design.
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UndisclosedUndisclosedFreelancerThurmaston, England
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Pactum Consulting Ltd, a Cybersecurity company, is based in Thurmaston, England. The team provides Cybersecurity and IT managed services.
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UndisclosedUndisclosedFreelancerEC3V 3NG, England
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Cybersecurity company Eldentech Limited is in EC3V 3NG, England. Launched in 2018, the team specializes in Cybersecurity and Custom Software Development.
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UndisclosedUndisclosedFreelancerLondon, England
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Xcina Security Team, a small Cybersecurity company, is in London, England. Their services include Cybersecurity and IT managed services.
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UndisclosedUndisclosed50 - 249City of London, England
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Cybersecurity company Obrela was founded in 2010. Located in City of London, England, the team specializes in Cybersecurity and BI & big data consulting & SI.
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UndisclosedUndisclosed50 - 249London, England
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Fastr is a Content Marketing company. They are in Boston, Massachusetts and Toronto, Canada, and their services include Content Marketing and Mobile & App Marketing.
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UndisclosedUndisclosedFreelancerLondon, England
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Van der Kraken Ltd. Is a Conversion Optimization company. Founded in 2018, the team specializes in Conversion Optimization and Search Engine Optimization. The firm is headquartered in London,
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UndisclosedUndisclosed50 - 249London, England
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Sadup Softech, a web design company, was established in 2019. The team provides Web Design and UX/UI Design and is headquartered in Duluth, Georgia and Hyderabad, India.
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$10,000+$150 - $199 / hr10 - 49Bristol , England
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Gibe Digital is a branding firm launched in 2009. The agency specializes in Branding and Digital Strategy, and is small.
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$10,000+$150 - $199 / hr10 - 49Newcastle , Northern Ireland
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Gospelware is a small app development firm based in Newcastle , Northern Ireland. Their services include Mobile App Development and UX/UI Design.
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UndisclosedUndisclosed10 - 49Edinburgh, Scotland
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Brainnwave is a big data company. Established in 2014, their team offers BI & big data consulting & SI and Artificial Intelligence.
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UndisclosedUndisclosed10 - 49RG1 1LX, England
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Shift Left Group is an IT strategy consulting company. Launched in 2015, the team provides IT strategy consulting and cloud consulting & SI.
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UndisclosedUndisclosed10 - 49London, England
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Bramfitt Technology Labs is a London, England-based Cybersecurity company. Their services include Cybersecurity and UX/UI Design.
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UndisclosedUndisclosed10 - 49London, England
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LT Harper is a London, England-based cloud consulting & SI company. They focus on cloud consulting & SI and Cybersecurity.
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List of the Top 15 United Kingdom QA Testers
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$5,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
39.4/40.019.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
100% Application Testing -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
33.8/40.018.6/20 Reviews8.7/10 Clients & Experience6.5/10 Market PresenceService focus
100% Application Testing -
$10,000+$25 - $49 / hr250 - 999London, England
Ability to deliver
30.5/40.016.4/20 Reviews6.7/10 Clients & Experience7.4/10 Market PresenceService focus
80% Application Testing20% Other -
$50,000+$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
UndisclosedUndisclosed50 - 249London, England
Ability to deliver
32.4/40.016.2/20 Reviews6.5/10 Clients & Experience9.7/10 Market PresenceService focus
55% Application Testing45% Other -
$10,000+$50 - $99 / hr50 - 249London, England
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$25,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
36.4/40.016.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$1,000+Undisclosed10 - 49London, England
Ability to deliver
31.7/40.018.4/20 Reviews6.2/10 Clients & Experience7/10 Market PresenceService focus
45% Application Testing55% Other -
$50,000+$50 - $99 / hr250 - 999Farnborough, England
Ability to deliver
35.4/40.015.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$1,000+$50 - $99 / hr2 - 9Exeter, England
Ability to deliver
24.3/40.016.4/20 Reviews3/10 Clients & Experience4.9/10 Market PresenceService focus
100% Application Testing -
$5,000+$25 - $49 / hr2 - 9Keynsham, England
Ability to deliver
24.2/40.016.2/20 Reviews2.4/10 Clients & Experience5.6/10 Market PresenceService focus
100% Application Testing -
$1,000+$25 - $49 / hr10 - 49Hildenborough, England
Ability to deliver
33/40.016.6/20 Reviews8.4/10 Clients & Experience8/10 Market PresenceService focus
30% Application Testing70% Other -
$5,000+$25 - $49 / hr10 - 49London, England
Ability to deliver
34.8/40.018.2/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
10% Application Testing90% Other -
Undisclosed$50 - $99 / hr1,000 - 9,999London, England
Ability to deliver
28.4/40.014/20 Reviews8.5/10 Clients & Experience5.9/10 Market PresenceService focus
20% Application Testing80% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
Ability to deliver
21.5/40.016.6/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
50% Application Testing50% Other -
$1,000+$25 - $49 / hr10 - 49Carlisle, England
Ability to deliver
20.8/40.016.2/20 Reviews0.6/10 Clients & Experience4/10 Market PresenceService focus
95% Application Testing5% Other -
Undisclosed$50 - $99 / hr10 - 49London, England
Ability to deliver
21.1/40.016.2/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
80% Application Testing20% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
31.4/40.016.2/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
15% Application Testing85% Other -
$10,000+$25 - $49 / hr50 - 249Potters Bar, England
Ability to deliver
32.3/40.017.4/20 Reviews8.8/10 Clients & Experience6.1/10 Market PresenceService focus
10% Application Testing90% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
31.7/40.016.8/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
10% Application Testing90% Other -
$5,000+$50 - $99 / hr10 - 49Farnham, England
Ability to deliver
31.2/40.016.2/20 Reviews9.6/10 Clients & Experience5.3/10 Market PresenceService focus
10% Application Testing90% Other -
Undisclosed< $25 / hr10 - 49London, England
Ability to deliver
31/40.015.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
10% Application Testing90% Other -
$75,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
20.5/40.015.2/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
40% Application Testing60% Other -
$5,000+< $25 / hr2 - 9Harrow, England
Ability to deliver
23.5/40.016.2/20 Reviews2.4/10 Clients & Experience4.9/10 Market PresenceService focus
60% Application Testing40% Other -
$50,000+$100 - $149 / hr10 - 49Manchester, England
Ability to deliver
30.4/40.015.6/20 Reviews9.1/10 Clients & Experience5.7/10 Market PresenceService focus
10% Application Testing90% Other -
$5,000+< $25 / hr10 - 49Woking, England
Ability to deliver
23/40.016.2/20 Reviews2.8/10 Clients & Experience4/10 Market PresenceService focus
50% Application Testing50% Other -
$25,000+$50 - $99 / hr10 - 49London, England
Ability to deliver
29.6/40.015.8/20 Reviews8.5/10 Clients & Experience5.3/10 Market PresenceService focus
10% Application Testing90% Other -
UndisclosedUndisclosed2 - 9Bollington, England
Ability to deliver
27.3/40.014.6/20 Reviews6.7/10 Clients & Experience6/10 Market PresenceService focus
10% Application Testing90% Other -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
25.7/40.016.4/20 Reviews4.4/10 Clients & Experience4.9/10 Market PresenceService focus
10% Application Testing90% Other -
$5,000+$25 - $49 / hr50 - 249Sudbrooke, England
Ability to deliver
24.7/40.016.2/20 Reviews3.6/10 Clients & Experience4.9/10 Market PresenceService focus
15% Application Testing85% Other
UK Software Testing FAQs
Hiring a UK-based QA partner gives you onshore alignment with European and North American teams, strong English-language communication, and deep familiarity with local regulations and standards. Many UK firms field ISTQB-certified engineers and have hands-on experience with UK GDPR, FCA requirements for fintech, NHS clinical safety and data controls, and WCAG 2.2 accessibility under the Equality Act.
In addition, you’ll find robust expertise across modern tooling and CI/CD pipelines common in UK product orgs. For enterprises with offices in London or the Thames Valley — or startups clustered around the Oxford–Cambridge “Golden Triangle” — in-person workshops and joint UAT are easier to arrange.
Pricing varies thanks to various factors, including engagement model, seniority, and scope. Based on Clutch’s recent data, most UK-based software testing firms offer services ranging:
- Hourly rates: £40 – £120+ for functional, automation, performance, and security testing specialists
- Day rates (common in the UK): £350 – £800 per consultant
- Monthly retainers for managed QA: £5,000 – £25,000+, depending on team size, velocity, and SLAs
- Project-based work: £10,000 – £150,000+
Lastly, expect higher rates for niche skills, complex projects, or expertise in highly advanced technologies. Ask for a pilot or fixed-scope discovery to validate estimates before you commit.
UK-based software QA providers support a broad mix of regulated and high-scale sectors, including:
- Financial services and fintech — open banking, payments, PCI DSS, trading platforms
- Healthcare and life sciences — NHS integrations, clinical safety, UK GDPR
- E-commerce and retail — omnichannel flows, peak load readiness
- Government and public sector — GDS standards, accessibility (WCAG 2.2 AA)
- Media and telecom — streaming QoE, device compatibility
- Gaming and interactive entertainment — console, PC, mobile, and live-ops testing
- Travel and transportation — booking engines, fare/ticketing operations
- Manufacturing and IoT — firmware, edge connectivity, interoperability
Prepare a search strategy by outlining your project’s objectives, parameters, and requirements. Then, browse through Clutch and assess possible partners by:
- Certifications and compliance — look for ISTQB, ISO 27001, and Cyber Essentials. Additionally, ask about UK GDPR, FCA/NHS experience, and WCAG audits.
- Tooling and approach — verify expertise in Appium, API testing, and integration with your CI/CD.
- Test assets — request sample test plans, strategies, data management practices, and reporting dashboards.
- References and reviews — compare Clutch case studies, star ratings, and reviewer roles; favor providers with work similar to your stack and scale.
- Pilot first — run a 2–4 week proof of concept to evaluate velocity, defect quality, and communication.
- Guaranteed “100% test coverage” or “bug-free” claims — not realistic for modern systems.
- No access to artifacts; they’re unwilling to share test plans, cases, data strategies, or reports.
- Tool lock-in — proprietary frameworks without export paths, or refusal to use your CI/CD.
- Weak security and privacy posture. There is no clear approach to PII handling, data masking, or UK GDPR compliance.
- One-size-fits-all proposals; little discovery, no environment assessment, or no alignment to your release model.
- Poor communication skills; infrequent updates, unclear ownership, or missing SLAs.
- Ignoring accessibility or non-functional testing when your product needs them.
The United Kingdom has many experienced and trusted firms, so don’t worry about running out of options. Make sure to spot, address, and avoid these red flags early.