Top 100 Software Testing Companies in London
The Best of December 2025Looking for a top software QA company in London?
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 London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London 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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121Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2013, KWA Analytics is a midsize Architectural Design company. Their services include Architectural Design and Custom Software Development.Read More
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122Undisclosed1,000 - 9,999 employeesLondon, EnglandLocated in London, England, AND Digital is an user experience company. They specialize in UX/UI Design and Product Design.Read More
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123Undisclosed50 - 249 employeesWestminster, London, EnglandEstablished in 2022, Canvas Reply is an user experience company. The midsize team specializes in UX/UI Design and Graphic Design.Read More
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124UndisclosedFreelancer employeesCity of London, EnglandCA Software Testing is an Application Testing company established in 2018. The team focuses on Application Testing.Read More
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125UndisclosedFreelancer employeesLondon, England, EnglandTR Seeds Ltd is an Application Testing company. Established in 2019, their team focuses on Application Testing.Read More
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126Undisclosed50 - 249 employeesCity of London, EnglandSureCloud 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.Read More
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127Undisclosed50 - 249 employeesLondon, EnglandIT strategy consulting company The Open Geospatial Consortium (OGC) is in Arlington, Virginia and London, England. They offer IT strategy consulting and cloud consulting & SI.Read More
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128$5,000+2 - 9 employeesWembley, EnglandEstablished in 2024, DSGNR Labs is a small Wembley, England-based Conversion Optimization company. Their services include Conversion Optimization and Application Testing.Read More
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129Undisclosed10 - 49 employeesDagenham, EnglandHeadquartered in Dagenham, England, APPITUNITY is a small software development company. Their services include Custom Software Development and Web Development.Read More
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130Undisclosed2 - 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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131$250,000+10 - 49 employeesLondon, EnglandSAQAYA, a IT staff augmentation company, is in London, United Kingdom; Richmond, United Kingdom and Cairo, Egypt. The small agency was founded in 2023. Their services include IT staff augmentation, custom software development, mobile app development, application testing, and more.Read More
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132$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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133Undisclosed10 - 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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134Undisclosed10 - 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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135Undisclosed10 - 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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136Undisclosed10 - 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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137Undisclosed10 - 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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138Undisclosed10 - 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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139$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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140Undisclosed250 - 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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141Undisclosed250 - 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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142Undisclosed2 - 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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143Undisclosed2 - 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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144Undisclosed2 - 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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145Undisclosed2 - 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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146Undisclosed50 - 249 employeesBasildon, EnglandTesting Minds is an Application Testing company launched in 2018. The company provides Application Testing.Read More
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147$5,000+2 - 9 employeesLondon, EnglandEstablished in 2022, LIVITA Software is a small London, England-based application development firm. Their team specializes in Mobile App Development and Application Management & Support.Read More
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148Undisclosed10 - 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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149$25,000+50 - 249 employeesBerkhamsted, EnglandApplication Management & Support company Propel Tech Ltd was launched in 2007. The agency offers Application Management & Support and Custom Software Development.Read More
Clients
Quickline Communications Limited J.C.B - J.C. Bamford Excavators Limited Allsop Property Auction Mi Hub LTDIndustries
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150$1,000+10 - 49 employeesBurnham, EnglandCreative 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.Read More
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