Top 100 Software Testing Companies in the United Kingdom
The Best of December 2025Looking 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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241Undisclosed50 - 249 employeesLondon, EnglandLaunched 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.Read More
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242Undisclosed2 - 9 employeesGlasgow , ScotlandBusiness Consulting company Sheeran IT Services was founded in 2003. The company provides Business Consulting and Application Testing, and is small.Read More
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243Undisclosed2 - 9 employeesLeeds, EnglandLocated in Leeds, England, Compliance Studio Ltd is a small mobile application development firm. The team focuses on Mobile App Development and Social Media Marketing.Read More
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244Undisclosed2 - 9 employeesLondon, EnglandSEO agency PGWD Ltd. Website Design specializes in Search Engine Optimization and Web Design. They were established in 2018.Read More
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245Undisclosed2 - 9 employeesBristol, EnglandBased in Bristol, England, Red Goat is a Cybersecurity company. Their services include Cybersecurity and Application Testing.Read More
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246Undisclosed10 - 49 employeesLondon, EnglandSerrula Research Ltd is a small Market Research company based in London, England. The team focuses on Market Research and Product Design.Read More
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247Undisclosed10 - 49 employeesEdinburgh , ScotlandCivic 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.Read More
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248Undisclosed10 - 49 employeesBelfast, Northern IrelandYarra Software, a small business intelligence company, is headquartered in Belfast, Northern Ireland. The team provides BI & big data consulting & SI and cloud consulting & SI.Read More
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249Undisclosed10 - 49 employeesHertfordshire, England, EnglandIOCO 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.Read More
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250Undisclosed10 - 49 employeesMuch Dewchurch, EnglandLocated in Much Dewchurch, England, Hamiltonian Dynamics is a Cybersecurity company. Founded in 2020, the team provides Cybersecurity and Application Testing.Read More
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251Undisclosed10 - 49 employeesLondon, EnglandEnterprise App Modernization company Camwood Ltd. Offers Enterprise App Modernization and cloud consulting & SI. They are headquartered in London, England.Read More
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252Undisclosed10 - 49 employeesCity of London, EnglandJackson 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.Read More
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253Undisclosed10 - 49 employeesCity of London, EnglandHeadquartered 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.Read More
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254Undisclosed10 - 49 employeesBirmingham, EnglandOmniCyber Security is a Cybersecurity company founded in 2015. Their team offers Cybersecurity and IT managed services.Read More
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255Undisclosed250 - 999 employeesCity of London, EnglandInnoWave is a Cybersecurity company launched in 2008. Their team focuses on Cybersecurity and UX/UI Design.Read More
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256Undisclosed250 - 999 employeesCity of London, EnglandIdeyaLabs is an Advertising company launched in 2019. Their team offers Advertising and UX/UI Design.Read More
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257Undisclosed250 - 999 employeesLondon, EnglandAlcor Solutions, Inc., an IT strategy consulting company, was established in 2008. The midsize team offers IT strategy consulting and cloud consulting & SI.Read More
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258Undisclosed250 - 999 employeesLondon, EnglandInsead Tech is a midsize e-commerce development company based in London, England. The team focuses on E-Commerce Development and ERP consulting and SI.Read More
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259Undisclosed50 - 249 employeesManchester, EnglandSmashCloud 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.Read More
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260Undisclosed2 - 9 employeesLeeds , EnglandTrueNorth IT Ltd is a software development firm established in 2014. Based in Leeds , England, the team specializes in Custom Software Development and IoT development.Read More
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261Undisclosed2 - 9 employeesLondon, EnglandLocated in London, England, TestPro Consulting Ltd is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.Read More
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262Undisclosed2 - 9 employeesNelson, EnglandBlue 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.Read More
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263Undisclosed2 - 9 employeesCroydon , EnglandEstablished in 2015, TopOneCRM Limited is a cloud consulting & SI company. Their services include cloud consulting & SI and CRM consulting and SI.Read More
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264Undisclosed2 - 9 employeesKirby Cross, EnglandGML Networking Technologies is a small web design company launched in 1998. Their services include Web Design and cloud consulting & SI.Read More
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265Undisclosed2 - 9 employeesLondon, EnglandResilienC is a PR firm. Located in London, England, the company was launched in 2022. Their team provides Public Relations and IT managed services.Read More
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266Undisclosed2 - 9 employeesLondon, EnglandFounded in 2011, 2|SEC Consulting is a Cybersecurity company. The small team focuses on Cybersecurity and Application Testing.Read More
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267Undisclosed2 - 9 employeesManchester, EnglandFortress Lab, a Cybersecurity company, was established in 2015. The team specializes in Cybersecurity and Web Development and is based in Manchester, England.Read More
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268Undisclosed10 - 49 employeesCoventry, EnglandSMQA Limited is a small ERP consulting and SI company based in Coventry, England. The team provides ERP consulting and SI and Cybersecurity.Read More
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269Undisclosed10 - 49 employeesCity of London, EnglandSSL247 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.Read More
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270Undisclosed2 - 9 employeesGlasgow , Scotland0141 Design is a web design company. They are headquartered in Glasgow , Scotland and have small team. They provide Web Design and Web Development.Read More
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