Top 100 Software Testing Companies in the United Kingdom
The Best of April 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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211$50,000+10 - 49 employeesEarley, EnglandLaunched in 2019, VA Software Solutions ltd is a custom software development company. Based in Earley, England and Sofia, Bulgaria, the team focuses on Custom Software Development and Web Development.Read More
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212$10,000+10 - 49 employeesLondon, EnglandTetra Technology, an user experience design agency, was launched in 2018. The agency specializes in UX/UI Design and BI & big data consulting & SI.Read More
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213$10,000+10 - 49 employeesLondon, EnglandEstablished in 2024, Kogniser is an AI Agents company. Their team specializes in AI Agents and BI & big data consulting & SI.Read More
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214$25,000+10 - 49 employeesLondon, EnglandCustom software development firm Lumora focuses on Custom Software Development and Mobile App Development. They were launched in 2018.Read More
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215$50,000+2 - 9 employeesLondon, EnglandStarling Web Engineering, an IT strategy consulting company, was founded in 2017. The small team focuses on IT strategy consulting and Web Development.Read More
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216$5,000+2 - 9 employeesGrangemouth, ScotlandBingo Agency is a branding agency established in 2023. In Grangemouth, Scotland and Ilford, England, the team specializes in Branding and Web Design.Read More
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217$1,000+2 - 9 employeesLondon, EnglandIn London, England, Qlikio is a SEO agency. Launched in 2023, the team focuses on Search Engine Optimization and Web Design.Read More
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218$5,000+2 - 9 employeesLondon, EnglandEstablished in 2025, KINGDOMCORE TECHNOLOGIES LTD is a website development firm. The team offers Web Development and Mobile App Development.Read More
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219Undisclosed2 - 9 employeesOrrell, EnglandWebsite development company BitRyx Solutions focuses on Web Development and Artificial Intelligence. They are headquartered in Orrell, England.Read More
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220$1,000+2 - 9 employeesLeyland, EnglandAdvica AI Solutions UK is a small Leyland, England-based software development company. The team specializes in Custom Software Development and Mobile App Development.Read More
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221Undisclosed10 - 49 employeesLondon, EnglandBased in London, England, Cinq Amis is an Application Testing company. Their services include Application Testing and IT managed services.Read More
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222Undisclosed250 - 999 employeesLondon, EnglandSollers Consulting, a big data analytics company, offer BI & big data consulting & SI and cloud consulting & SI. They were founded in 2000.Read More
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223Undisclosed250 - 999 employeesCity of London, EnglandSparta Global, an Application Testing company, was established in 2014. The midsize team specializes in Application Testing and Market Research.Read More
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224Undisclosed250 - 999 employeesCity of London, EnglandConversion Optimization company Testbirds provides Conversion Optimization and UX/UI Design. They are headquartered in München, Germany and City of London, England.Read More
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225Undisclosed50 - 249 employeesEdinburgh , ScotlandPetroleum Experts Ltd., a software development firm, was established in 1990. The team specializes in Custom Software Development and Application Management & Support and is in Edinburgh , Scotland.Read More
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226Undisclosed50 - 249 employeesLeeds , EnglandDTP Group is a Leeds , England-based software development firm. Established in 1987, the team provides Custom Software Development and IT managed services.Read More
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227Undisclosed50 - 249 employeesBelfast, Northern IrelandFounded in 2004, Anaeko is a custom software development firm. The company offers Custom Software Development and cloud consulting & SI.Read More
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228Undisclosed50 - 249 employeesLondon, EnglandRecruitment Process Outsourcing company Strike IT Recruitment Services was launched in 2001. The team offers Recruitment Process Outsourcing and Application Testing.Read More
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229Undisclosed50 - 249 employeesThird Avenue Marlow, EnglandDeveloping World Systems Ltd, an Application Testing company, was founded in 1998. They specializes in Application Testing and Enterprise App Modernization.Read More
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230Undisclosed10 - 49 employeesLeeds , EnglandFounded in 2009, Brandsoft Solutions Ltd is an e-commerce development firm. The company focuses on E-Commerce Development and Application Testing, and is small.Read More
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231Undisclosed10 - 49 employeesLiverpool, EnglandAspion is a Staffing company. They were launched in 2004, and their services include Staffing and Application Testing.Read More
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232Undisclosed250 - 999 employeesLondon, EnglandDamco Solutions Limited, a Back Office Outsourcing company, focuses on Back Office Outsourcing and Branding. The agency is in London, England and Mechanicsburg, Pennsylvania.Read More
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233Undisclosed2 - 9 employeesBirmingham , EnglandL & G Technologies is an e-commerce development firm. They focus on E-Commerce Development and Application Management & Support and were launched in 2007.Read More
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234Undisclosed2 - 9 employeesLeeds , EnglandRedev Ltd is a custom software development company. They are located in Leeds , England. Their team focuses on Custom Software Development and Mobile App Development.Read More
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235Undisclosed2 - 9 employeesLeeds , EnglandHeadquartered in Leeds , England, Seriously RAD Limited is a small software development firm. Their services include Custom Software Development and Mobile App Development.Read More
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236Undisclosed2 - 9 employeesLeeds, EnglandRecruit Genie Ltd is a website development firm based in Leeds, England. Launched in 2015, the team offers Web Development and Mobile App Development.Read More
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237Undisclosed2 - 9 employeesLeeds , EnglandSmall custom software development firm Raydeo, is based in Leeds , England. Their services include Custom Software Development and IoT development.Read More
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238Undisclosed2 - 9 employeesWorcestershire, EnglandFuture-Safe Consulting Ltd is an Application Testing company. They provide Application Testing and Business Consulting and were launched in 2020. The agency is in Worcestershire, England.Read More
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239Undisclosed2 - 9 employeesLondon, EnglandSmall SEO company SearchPilot, is headquartered in London, England. The team focuses on Search Engine Optimization and Application Testing.Read More
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240Undisclosed50 - 249 employeesBramham, EnglandEstablished in 2013, Interactive Digital Systems is a midsize custom software development company. Their services include Custom Software Development and UX/UI Design.Read More
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