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?
$25,000+$25 - $49 / hr1,000 - 9,999Serves United KingdomServices provided
See all 86 projectsSimform is a software development and testing company that offers services including Application Quality Assurance and QA Testing. Across multiple reviews, clients commend Simform for their excellent project management, timely delivery, and effective communication. Approximately 100% of reviewers highlight their responsiveness and commitment, while around 20% suggest minor areas for improvement. Their technical expertise and alignment with client values consistently earn them high praise.
$5,000+$25 - $49 / hr50 - 249Serves United KingdomServices provided
See all 32 projectsQualityLogic is a reputable company specializing in Software Quality Assurance and Testing Services, including App Testing and QA Testing. According to client reviews, QualityLogic is praised for their excellent communication and detailed documentation, with approximately 90% of responses highlighting their professional project management and adherence to budget. Clients frequently commend their flexibility and the successful implementation of testing protocols, underscoring QualityLogic's ability to enhance software quality and mitigate risks effectively.
$5,000+Undisclosed50 - 249Serves United KingdomServices provided
See all 64 projectsBetterQA is a dedicated software testing company that offers services like App Testing, QA Testing, and Software Quality Assurance. Across reviews, 100% of clients commend their strong understanding of business contexts and tailored QA solutions, resulting in improved software quality and reduced defect rates. Clients appreciate their timely delivery and seamless integration with internal teams, highlighting BetterQA's commitment to practical outcomes and client-focused service.
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UndisclosedUndisclosed2 - 9Accrington, England, England
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Fortitude 17 Limited is a small Application Testing company. Founded in 2017, the team focuses on Application Testing and ERP consulting and SI.
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$10,000+$50 - $99 / hr50 - 249London, England
Services provided
Aecor is a midsize London, England-based UX design agency. The team specializes in UX/UI Design and Custom Software Development.
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Featured
What are Featured Providers?
Undisclosed$25 - $49 / hr10 - 49Serves United KingdomServices provided
See all 21 projectsQAlified is a distinguished software testing company specializing in Application Quality Assurance, Software QA, and Testing Services. With 100% positive feedback across reviews, clients commend their reliability, precision, and effective project management. Notably, 85% of reviewers highlight their excellent communication and adaptability, while 70% appreciate the alignment with company values and culture.
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Undisclosed< $25 / hr10 - 49Norwich, England
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Launched in 2017, Serious Software is a software development firm. The company offers Custom Software Development and Web Development, and is small.
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$5,000+$25 - $49 / hr2 - 9London, England
Services provided
Code Development Ltd. Is a custom software development firm. The London, England-based company provides Custom Software Development and Application Testing.
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$1,000+$25 - $49 / hr2 - 9Sheffield , England
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CEESourcingLtd, an IT managed services company, was launched in 2018. The firm focuses on IT managed services and Application Testing, and is small.
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Undisclosed$50 - $99 / hr2 - 9Glasgow, Scotland
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Orvio is a social media marketing company. The small Glasgow, Scotland-based team specializes in Social Media Marketing and Conversion Optimization. The company was established in 2016.
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$10,000+$150 - $199 / hr10 - 49London, England
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WhatUsersDo is an user experience design company and Application Testing company. They were launched in 2008, and their services include UX/UI Design and Application Testing.
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UndisclosedUndisclosed10 - 49London, England
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Welaxio Management, an Application Testing and Robotics Process Automation company, was launched in 2007. The company offers Application Testing and Robotics Process Automation.
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$5,000+$100 - $149 / hr10 - 49Edinburgh, Scotland
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CIVIC is an user experience agency launched in 2001. The small team focuses on UX/UI Design and Web Development.
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$5,000+$100 - $149 / hr2 - 9Wembley, England
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Established in 2024, DSGNR Labs is a small Wembley, England-based Conversion Optimization company. Their services include Conversion Optimization and Application Testing.
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UndisclosedUndisclosed10 - 49Dagenham, England
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Headquartered in Dagenham, England, APPITUNITY is a small software development company. Their services include Custom Software Development and Web Development.
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$5,000+$100 - $149 / hr2 - 9Romford, England
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Headquartered in Romford, England, GGDX Ltd is a small website development company. The team offers Web Development and Application Testing.
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Undisclosed$25 - $49 / hr10 - 49Aylesbury, England
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Web design agency Infinium Solution was established in 2020. The small team specializes in Web Design and Mobile App Development.
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UndisclosedUndisclosed1,000 - 9,999Glasgow, Scotland
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IT Researches is a software development firm. Their large team is located in Glasgow, Scotland. Their team specializes in Custom Software Development and Artificial Intelligence.
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UndisclosedUndisclosed50 - 249Telford, Shropshire, England
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NFocus Testing, an Application Testing company, was established in 2000. The agency offers Application Testing and IT strategy consulting, and is midsize.
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UndisclosedUndisclosed50 - 249Edinburgh, Scotland
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Stellar Omada Ltd is an Edinburgh, Scotland-based Application Testing company. They specialize in Application Testing and IT strategy consulting.
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$1,000+$50 - $99 / hr10 - 49London, England
Services provided
Prokett is a SEO agency. Their team is in London, England and provides Search Engine Optimization and Application Testing.
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Undisclosed$50 - $99 / hr10 - 49Gosport, England
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Alver Services is a custom software development firm founded in 2014. Located in Gosport, England, the team provides Custom Software Development and Web Development.
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$1,000+$200 - $300 / hr10 - 49Burnham, England
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Creative Computing Solutions is an ERP consulting and SI company. They were established in 1990, and their services include ERP consulting and SI and Application Management & Support.
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$1,000+< $25 / hr10 - 49Wallington, England
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3com3 is a call center company. Headquartered in Wallington, England, the firm focuses on Call Center Services and IT strategy consulting.
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$1,000+$50 - $99 / hr2 - 9Birmingham, England
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Forfend Information Security Ltd is an IT strategy consulting company. The team provides IT strategy consulting and cloud consulting & SI, and the company is located in Birmingham, England.
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$5,000+< $25 / hr2 - 9London, England
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Headquartered in London, England, Techsleight is a small custom software development company. The team offers Custom Software Development and Web Development.
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$10,000+$100 - $149 / hr10 - 49Manchester, England
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Reason Digital is a web design agency. The team provides Web Design and Web Development and is located in Manchester, England and London, England.
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$25,000+Undisclosed10 - 49London, England
Services provided
Answering service FX Digital was launched in 2011. The firm focuses on Call Center Services and Web Design, and is small.
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$5,000+$100 - $149 / hr2 - 9Leeds, England
Services provided
Agency Leeds Ltd is a SEO services firm. They are in Leeds, England. Their team provides Search Engine Optimization and Web Design.
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$25,000+$100 - $149 / hr2 - 9London, England
Services provided
Thisdotsoftware is a software development company. Their team is located in London, England. The agency focuses on Custom Software Development and Application Testing.
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$1,000+$25 - $49 / hr10 - 49Netherfield, England
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Established in 2017, IT247 Solutions is a branding company. The small team focuses on Branding and Web Development.
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$1,000+$25 - $49 / hr10 - 49Dagenham, England
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Paradox International Ltd is a social media marketing agency. Located in Dagenham, England, the team specializes in Social Media Marketing and Web Design.
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$10,000+$50 - $99 / hr10 - 49Teignmouth, England
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Founded in 2021, NodeNova is a web design agency. Headquartered in Teignmouth, England, the team offers Web Design and IT strategy consulting.
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UndisclosedUndisclosed10 - 49High Wycombe, England
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Cirronex is a small High Wycombe, England-based Application Testing company. Their services include Application Testing and Application Management & Support.
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$5,000+$200 - $300 / hr10 - 49Edinburgh, Scotland
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Based in Edinburgh, Scotland and London, England, Lynchpin Analytics is a small Marketing Strategy company. The team focuses on Marketing Strategy and Digital Strategy.
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$10,000+$25 - $49 / hr50 - 249London, England
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Headquartered in Bengaluru, India and München, Germany, Bluerose Technologies is a midsize software development company. The team provides Custom Software Development and IT staff augmentation.
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UndisclosedUndisclosed2 - 9City of London, England
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COPERIS PARTNERS, a data analytics company and Application Testing company, was founded in 2014. The agency offers BI & big data consulting & SI and Application Testing, and is small.
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$10,000+$50 - $99 / hr10 - 49Sheffield, England
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DeeperThanBlue is a cloud consulting & SI company. They are located in Sheffield, England, and their services include cloud consulting & SI and E-Commerce Development.
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$250,000+$25 - $49 / hr10 - 49London, England
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See all 1 projectsSAQAYA specializes in digital transformation and growth acceleration, providing services such as market research, competitor analysis, and the development of actionable product roadmaps. Clients praised their commitment to quality and transparent communication, highlighting their ability to successfully mobilize talent and meet project goals within budget and time constraints.
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$25,000+$150 - $199 / hr2 - 9London, England
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Artificial intelligence company BoldWave.ai is in London, England. Launched in 2022, the team specializes in Artificial Intelligence and AI Consulting.
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$25,000+$50 - $99 / hr50 - 24927 Old Gloucester Street, , England
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See all 1 projectsServices Bespoke Software Development Greenfield Software Development Product Development MVP Development Proof of Concept Engineering Team Augmentation Top-Tier Engineers Quality Assurance &
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UndisclosedUndisclosed50 - 249London, England
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Luminous Infoways Pvt. Ltd. Is a Mobile & App Marketing company founded in 2001. In Bhubaneswar, India and New Delhi, India, the team offers Mobile & App Marketing and Web Development.
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$10,000+$150 - $199 / hr2 - 9London, England
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User experience company UXB London is based in London, England. The team offers UX/UI Design and Digital Strategy.
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Undisclosed$25 - $49 / hr2 - 9London, England
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In London, England, CAFTAS LTD is a SEO services firm. Launched in 2022, the team provides Search Engine Optimization and Web Design.
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$5,000+Undisclosed2 - 9London, England
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Neam, an IT strategy consulting company, is in London, England. They specialize in IT strategy consulting and Custom Software Development and were launched in 2022.
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Undisclosed< $25 / hr2 - 9Telford, England
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Algosys Technologies is a Telford, England-based data analytics company. They offer BI & big data consulting & SI and Web Development and were founded in 2021.
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UndisclosedUndisclosed10 - 49Basildon, England
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Brendata UK LTD is a custom software development firm launched in 1992. The agency provides Custom Software Development and Web Design.
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$1,000+$25 - $49 / hr2 - 9Erith, England
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Nuclecode is a web development company headquartered in Erith, England. Launched in 2023, the team focuses on Web Development and Web Design.
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UndisclosedUndisclosed10 - 49London, England
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Based in London, England, Cinq Amis is an Application Testing company. Their services include Application Testing and IT managed services.
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$10,000+$150 - $199 / hr2 - 9South Cave, England
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Launched in 2021, Tweave.Tech is a small custom software development company. Their services include Custom Software Development and Business Consulting.
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UndisclosedUndisclosed10 - 49Southend-on-Sea, England
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Small custom software development firm Hyperneph Software, is in Southend-on-Sea, England. Their services include Custom Software Development and Web Development.
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$25,000+$25 - $49 / hr10 - 49Erith, England
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ItsRevolution is a mobile application development firm. They were launched in 2016, and their services include Mobile App Development and UX/UI Design.
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$1,000+UndisclosedFreelancerLondon, England
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Based in London, England, Dothex Ltd is an IoT development company. The team offers IoT development and Custom Software Development.
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$1,000+$150 - $199 / hr10 - 49London, England
Services provided
Socium is a small London, England-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.
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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
38.2/40.018.6/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
100% Application Testing -
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
34.2/40.019/20 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 -
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
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing90% Other -
$1,000+Undisclosed10 - 49London, England
Ability to deliver
31.3/40.018/20 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
32.8/40.016.4/20 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
21.3/40.016.4/20 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 -
$1,000+$100 - $149 / hr50 - 249Rochdale, England
Ability to deliver
30.2/40.020/20 Reviews4.4/10 Clients & Experience5.8/10 Market PresenceService focus
20% Application Testing80% 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 -
$10,000+$25 - $49 / hr2 - 9London, England
Ability to deliver
26.2/40.016.2/20 Reviews4.9/10 Clients & Experience5.2/10 Market PresenceService focus
10% Application Testing90% 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.