Top 100 Software Testing Companies in the United Kingdom
The Best of August 2026Looking for a top software QA company in the United Kingdom?
Hiring a software testing company is a necessity to both test and improve the services your company offers, especially in an increasingly digital world.
To assist you in your search for a partner, we’ve compiled this list of the top software testing companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Software QA Companies
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$5,000+50 - 249 employeesSeattle, WARead More
QA Wolf, an application testing company, was launched in 2019. The company provides application testing and has a small team.
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181Undisclosed2 - 9 employeesAccrington, England, EnglandFortitude 17 Limited is a small Application Testing company. Founded in 2017, the team focuses on Application Testing and ERP consulting and SI.Read More
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182Undisclosed50 - 249 employeesLondon, EnglandLuminous 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.Read More
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183Undisclosed10 - 49 employeesBasildon, EnglandBrendata UK LTD is a custom software development firm launched in 1992. The agency provides Custom Software Development and Web Design.Read More
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184$1,000+2 - 9 employeesErith, EnglandNuclecode is a web development company headquartered in Erith, England. Launched in 2023, the team focuses on Web Development and Web Design.Read More
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185$1,000+Freelancer employeesLondon, EnglandBased in London, England, Dothex Ltd is an IoT development company. The team offers IoT development and Custom Software Development.Read More
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186$10,000+10 - 49 employeesLondon, EnglandWhatUsersDo 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.Read More
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187Undisclosed10 - 49 employeesLondon, EnglandWelaxio Management, an Application Testing and Robotics Process Automation company, was launched in 2007. The company offers Application Testing and Robotics Process Automation.Read More
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188$25,000+50 - 249 employees27 Old Gloucester Street, , EnglandCodegem is a custom software development company. They are in 27 Old Gloucester Street, , England and have a midsize team. Their services include Custom Software Development, API Development, Application Testing, Engineering, and more.Read More
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189$10,000+2 - 9 employeesSouth Cave, EnglandLaunched in 2021, Tweave.Tech is a small custom software development company. Their services include Custom Software Development and Business Consulting.Read More
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190Undisclosed10 - 49 employeesSouthend-on-Sea, EnglandSmall custom software development firm Hyperneph Software, is in Southend-on-Sea, England. Their services include Custom Software Development and Web Development.Read More
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191Undisclosed2 - 9 employeesLondon, EnglandIn London, England, CAFTAS LTD is a SEO services firm. Launched in 2022, the team provides Search Engine Optimization and Web Design.Read More
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192$5,000+2 - 9 employeesLondon, EnglandNeam, an IT strategy consulting company, is in London, England. They specialize in IT strategy consulting and Custom Software Development and were launched in 2022.Read More
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193Undisclosed2 - 9 employeesTelford, EnglandAlgosys Technologies is a Telford, England-based data analytics company. They offer BI & big data consulting & SI and Web Development and were founded in 2021.Read More
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194$25,000+10 - 49 employeesErith, EnglandItsRevolution is a mobile application development firm. They were launched in 2016, and their services include Mobile App Development and UX/UI Design.Read More
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195Undisclosed1,000 - 9,999 employeesGlasgow, ScotlandIT Researches is a software development firm. Their large team is located in Glasgow, Scotland. Their team specializes in Custom Software Development and Artificial Intelligence.Read More
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196Undisclosed50 - 249 employeesTelford, Shropshire, EnglandNFocus Testing, an Application Testing company, was established in 2000. The agency offers Application Testing and IT strategy consulting, and is midsize.Read More
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197Undisclosed50 - 249 employeesEdinburgh, ScotlandStellar Omada Ltd is an Edinburgh, Scotland-based Application Testing company. They specialize in Application Testing and IT strategy consulting.Read More
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198$5,000+2 - 9 employeesManchester, EnglandTalmee Ltd, a mobile application development firm, is located in Manchester, England. Launched in 2020, the team offers Mobile App Development and UX/UI Design.Read More
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199$1,000+2 - 9 employeesGlengormley, Northern IrelandAOS TECH is a website development firm. Their team is in Glengormley, Northern Ireland. The company focuses on Web Development and AI Agents.Read More
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200$1,000+10 - 49 employeesLondon, EnglandSocium is a small London, England-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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201$1,000+Freelancer employeesLondon, EnglandVitalflow Creative is a graphic design company founded in 2024. Their services include Graphic Design and Custom Software Development.Read More
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202$5,000+10 - 49 employeesLondon, EnglandKeypoint Solutions Ltd is a web development firm. The London, England-based company was established in 2021. Their team specializes in Web Development and IT strategy consulting.Read More
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203$10,000+10 - 49 employeesLondon, EnglandArchnix Pvt Ltd is a software development firm launched in 2020. Based in London, England and Colombo, Sri Lanka, the team provides Custom Software Development and Web Development.Read More
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204$50,000+10 - 49 employeesLondon, EnglandMomin Solutions is a business intelligence company founded in 2010. The agency focuses on BI & big data consulting & SI and cloud consulting & SI, and is small.Read More
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205Undisclosed2 - 9 employeesTelford, EnglandArtificial intelligence development company Yedaiah specializes in Artificial Intelligence and Web Development. They were founded in 2015.Read More
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206$1,000+Freelancer employeesTimperley, EnglandMorgan Feeney is a web development company established in 2022. Their services include Web Development and Search Engine Optimization.Read More
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207Undisclosed2 - 9 employeesLondon, EnglandEstablished in 2018, TAILCO is a small branding firm. Their services include Branding and Social Media Marketing.Read More
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208$5,000+2 - 9 employeesLondon, EnglandMoiotso Limited is a Digital Strategy company launched in 2017. Headquartered in London, England, the team specializes in Digital Strategy and Web Design.Read More
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209$1,000+2 - 9 employeesDarlington, EnglandDealFusion Tech Labs Ltd is a mobile app development company. They were established in 2025, and their services include Mobile App Development and E-Commerce Development.Read More
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210$1,000+50 - 249 employeesIlford, EnglandTechsignx is a website development firm. Their midsize team is located in Ilford, England and specializes in Web Development and Mobile App Development. The firm was founded in 2022.Read More
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