Top 100 Software Testing Companies in the United Kingdom
The Best of October 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
-
121Undisclosed2 - 9 employeesLangdon Hills, EnglandBlaze Technology Solutions, a small Application Testing company, is headquartered in Puducherry, India and Langdon Hills, England. The team focuses on Application Testing and Web Design.Read More
-
122$25,000+1,000 - 9,999 employeesLondon, EnglandProlifics is an ECM consulting and SI company. Launched in 1978, the team focuses on ECM consulting and SI and unified communications consulting & SI.Read More
-
123$10,000+1,000 - 9,999 employeesLondon, EnglandTelefónica Tech (EN) is a Cybersecurity company. They are in London, England, and their services include Cybersecurity and IT managed services.Read More
Industries
-
124Undisclosed10 - 49 employeesLondon, EnglandLaunched in 2016, Assured Thought, a small Application Testing company, is headquartered in London, England. Their team focuses on Application Testing and IT strategy consulting.Read More
Industries
-
125Undisclosed250 - 999 employeesLondon, EnglandSoftware Country is a mobile app development firm. They offer Mobile App Development and Custom Software Development and are headquartered in Plymouth Meeting, Pennsylvania and London, England.Read More
Industries
-
126$10,000+50 - 249 employeesHeathrow, EnglandEstablished in 2004, Root Info Solutions is an e-commerce development firm. The firm offers E-Commerce Development and Mobile App Development, and is midsize.Read More
-
127$10,000+50 - 249 employeesHoughton le Spring, EnglandHeadquartered in Houghton le Spring, England, Leighton is a midsize custom software development company. The team provides Custom Software Development and IT strategy consulting.Read More
-
128$25,000+1,000 - 9,999 employeesHarrow, EnglandIT strategy consulting company Changepond Technologies Private Limited was established in 2000. The agency specializes in IT strategy consulting and IT managed services.Read More
Industries
-
129Undisclosed2 - 9 employeesGlasgow, ScotlandScapa Technologies is an Application Testing company. The team is based in Dun Laoghaire, Ireland and Glasgow, Scotland, and their services include Application Testing and IT strategy consulting.Read More
Industries
-
130Undisclosed50 - 249 employeesRingwood, EnglandSmarter Technologies Group, a web development company, provide Web Development and IoT development. They were launched in 2009.Read More
-
131$10,000+2 - 9 employeesManchester, EnglandDolus Security is a small Application Testing company established in 2024. Their services include Application Testing and Cybersecurity.Read More
-
132$10,000+2 - 9 employeesBristol , EnglandUser experience company 3Sixty is headquartered in Bristol , England. They provide UX/UI Design and Conversion Optimization.Read More
Industries
-
133$5,000+2 - 9 employeesBelfast, Northern IrelandFounded in 2006, Vertical Structure is a cloud consulting & SI company. The team specializes in cloud consulting & SI and Cybersecurity.Read More
Industries
-
134$1,000+50 - 249 employeesLondon, EnglandCustom software development company Hardcastle GIS was launched in 2011. The team provides Custom Software Development and Application Testing.Read More
-
135$100,000+50 - 249 employeesRichmond upon Thames, EnglandEstafet is a midsize custom software development firm. Launched in 2002, the team provides Custom Software Development and Artificial Intelligence.Read More
-
136$5,000+250 - 999 employeesNether Poppleton, EnglandTrustmarque Solutions Ltd is a Nether Poppleton, England-based big data company. They offer BI & big data consulting & SI and cloud consulting & SI.Read More
Industries
-
137Undisclosed2 - 9 employeesGlasgow, ScotlandOrvio 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.Read More
Industries
-
138$5,000+50 - 249 employeesSheffield, EnglandNimble Approach is a midsize Digital Engineering company located in Sheffield, England and Leeds, England. Their services include Digital Engineering and Custom Software Development.Read More
-
139$10,000+50 - 249 employeesLondon, EnglandAecor is a midsize London, England-based UX design agency. The team specializes in UX/UI Design and Custom Software Development.Read More
Clients
Prolius, Island Energy Group, Insite Energy, Paysme, Eurosporting, Pitchero, Met Systems, DRSI, Bite IT, Instalcomm, Polpo, TQG, SPX FlowIndustries
-
140Undisclosed250 - 999 employeesCity of London, EnglandLocated in Philadelphia, Pennsylvania and City of London, England, Invent Analytics is an AI company. They specialize in Artificial Intelligence and Application Testing.Read More
-
141Undisclosed50 - 249 employeesWythenshawe, EnglandSGBI Inc is an artificial intelligence company founded in 2021. The firm provides Artificial Intelligence and Application Testing, and is midsize.Read More
Industries
-
142$10,000+50 - 249 employeesNewcastle upon Tyne, EnglandEstablished in 2013, Malleum is a midsize Ottawa, Canada-based cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.Read More
Industries
-
143$10,000+2 - 9 employeesHuddersfield, EnglandOffroadcode Limited is an UX design company. Their small team is headquartered in Huddersfield, England. Their team focuses on UX/UI Design and E-Commerce Development.Read More
Industries
-
144$5,000+10 - 49 employeesStanwell, EnglandQuirinus Solutions Ltd is a software development company. Located in Stanwell, England, the firm was launched in 2017. Their team provides Custom Software Development and E-Commerce Development.Read More
Industries
-
145Undisclosed2 - 9 employeesLondon, EnglandFounded in 2020, Cyber Sense Limited is a Cybersecurity company. The team offers Cybersecurity and Application Testing.Read More
-
146Undisclosed2 - 9 employeesCardiff, WalesHeadquartered in Cardiff, Wales, LUMA Solutions is an IT managed services company. The team provides IT managed services and Application Testing.Read More
Industries
-
147$5,000+10 - 49 employeesEdinburgh, ScotlandCIVIC is an user experience agency launched in 2001. The small team focuses on UX/UI Design and Web Development.Read More
Industries
-
148Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England and Amsterdam, Netherlands, Maxima Compliance is a Business Consulting company. Their services include Business Consulting and other IT consulting and SI.Read More
-
149Undisclosed10 - 49 employeesNorwich, EnglandLaunched in 2017, Serious Software is a software development firm. The company offers Custom Software Development and Web Development, and is small.Read More
-
150$5,000+2 - 9 employeesLondon, EnglandCode Development Ltd. Is a custom software development firm. The London, England-based company provides Custom Software Development and Application Testing.Read More
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule Consultation