Top 100 Usability Testing Companies in London
The Best of December 2025Looking for a top usability testing agency in London?
Usability testing helps companies vet if a product is worth investing time and resources in building. It also helps improve existing products by accounting for user feedback and pain points in design and functionality updates.
For example, let's say you're looking at Analytics and notice visitors to your website often visit one page only. You may hypothesize that your navigation is not user friendly. You could design and develop an updated navigation, or you could hold user tests to vet your hypothesis and get suggestions for navigation features your users need.
User testing may seem time consuming up-front, but it ultimately saves time and money later. For expert assistance, consider hiring a usability testing company. Usability testing services define test scenarios, identify test subjects, conduct the tests, and compile feedback for you.
To assist you in your search for a partner, we’ve compiled this list of the top usability testing companies in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London Usability Testing Services
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181$1,000+2 - 9 employeesLondon, EnglandRead More
Digiscript Technical Solutions is an enterprise app modernization company launched in 2019. The small team provides enterprise app modernization, ux/ui design, digital strategy, mobile app development, and more. The agency is located in Swansea , Nigeria and London, United Kingdom.
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182$1,000+2 - 9 employeesLondon, EnglandBushy, a conversion optimization company, was launched in 2018. They are based in London, United Kingdom and have a small team. Their services include conversion optimization, digital strategy, email marketing, ux/ui design, and more.Read More
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183$10,000+10 - 49 employeesLondon, EnglandRead More
Codepunch Ltd is a London, United Kingdom-based mobile application development firm. The small team specializes in mobile app development, web development, custom software development, web design, and more. The company was launched in 2022.
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184$5,000+2 - 9 employeesLondon, EnglandRead More
Passio is a small user experience agency. The Edinburgh, United Kingdom-based company was launched in 2016. Their team provides ux/ui design, mobile app development, product design, web design, and more.
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185$25,000+10 - 49 employeesLondon, EnglandRead More
Radical Path is a design agency in London, United Kingdom. Founded in 2018, they have about 8 employees that serve mostly midmarket clients in the financial, advertising, and consumer products industries. Services include UI/UX design, product design, and branding.
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CaptifyIndustries
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186$5,000+2 - 9 employeesLondon, EnglandRead More
Pixable is a small CRM consulting and SI company. They provide CRM consulting and SI, custom software development, web development, mobile app development, and more and were founded in 2013. The agency is based in London, United Kingdom.
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187$25,000+250 - 999 employeesLondon, EnglandLaunched in 2003, Reprise Digital is a website development company. Their services include Web Development and UX/UI Design.Read More
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188$10,000+10 - 49 employeesLondon , EnglandRead More
Danger Farms is a London-based digital agency founded in 2012. With their team of over 10 people, they provide custom software development, digital strategy, and UX/UI design solutions primarily to enterprise-level clients. They have experience in business and financial services, as well as retail.
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Lloyd's RegisterIndustries
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189$5,000+50 - 249 employeesHounslow, EnglandEstablished in 2022, Synchronous Services is a midsize user experience agency. Their team specializes in UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more. The company is located in Hounslow, England.Read More
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190$1,000+2 - 9 employeesLondon, EnglandRead More
Founded in 2011, Pendulum Creative is located in Putney, United Kingdom. Their team of three employees provides UX/UI design, web design, and graphic design services for midmarket and small businesses.
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London Sock CompanyIndustries
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191$5,000+2 - 9 employeesLondon, EnglandRead More
Located in London, United Kingdom, Component Product Foundry is a UX design company. The agency offers ux/ui design, marketing strategy, digital strategy, content marketing, and more and is small.The agency was established in 2018.
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192$10,000+10 - 49 employeesLondon, EnglandRead More
Motzheim Development is a San Francisco, California-based mobile app development company. The small company was established in 2023. Their team provides mobile app development, ux/ui design, custom software development, web development, and more.
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193$1,000+2 - 9 employeesWembley, EnglandVUPAX Solutions Limited, an user experience design company, was founded in 2025. Their small team is based in Wembley, England. Their services include UX/UI Design, cloud consulting & SI, Cybersecurity, Custom Software Development, and more.Read More
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194$5,000+2 - 9 employeesLondon, EnglandWebsite development firm CERKA is located in London, England and Tulum, Mexico. They provide Web Development, Branding, UX/UI Design, Web Design, and more and were launched in 2022.Read More
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195$1,000+10 - 49 employeesLondon, EnglandRead More
SOKOLDEV is a small web development firm and mobile app development firm. The Lahore, Pakistan-based company was founded in 2017. Their team provides web development and mobile app development.
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196Undisclosed10 - 49 employeesLondon, EnglandRead More
SmallGiants is a web development firm in London, United Kingdom. The small firm was founded in 2018. Their team provides web development, ux/ui design, application management & support, advertising, and more.
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197$10,000+10 - 49 employeesLondon, EnglandEstablished in 2014, KIJO is a web design agency. The company focuses on Web Design, Digital Strategy, UX/UI Design, Web Development, and more and has a small team. The company is headquartered in Birmingham, England and London, England.Read More
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198Undisclosed10 - 49 employeesEnfield, EnglandFome is a social media marketing agency. They offer social media marketing, search engine optimization, pay per click, web design, and more and were founded in 2013. Their small team is Enfield, United Kingdom-based.Read More
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199$10,000+2 - 9 employeesLondon, EnglandFDRY is a web design company in London, England. Founded in 2011, the team offers Web Design and UX/UI Design.Read More
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IsportconnectIndustries
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200$10,000+2 - 9 employeesLondon, EnglandEpik Group LLP is a small branding company. Located in London, England, the firm was founded in 2020. Their services include Branding, Web Design, UX/UI Design, Logo, and more.Read More
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201Undisclosed250 - 999 employeesMünchen, GermanyCustom software development firm Star is located in Sunnyvale, California and San Francisco, California. Their services include Custom Software Development and Mobile App Development.Read More
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202$10,000+2 - 9 employeesIlford, EnglandRead More
Discover is a design firm based in Ilford, England with no more than 10 employees. They have offered digital strategy, web design, and UX/UI design solutions since their founding in 2015. They work mainly with small and mid-market firms.
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MicrosoftIndustries
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203$10,000+2 - 9 employeesLondon, EnglandMinistry is a small web design agency founded in 1998. Their team offers Web Design and Web Development.Read More
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OxfamIndustries
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204$5,000+2 - 9 employeesLondon, EnglandRead More
Strike UX is a design company founded in 2018 with fewer than 10 experts. They offer UX/UI design, web design, and web development solutions from their office in London. They mainly work with small and mid-market businesses.
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AnthocyaneIndustries
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205$5,000+2 - 9 employeesLondon, EnglandPlantec, a software development company, was established in 2022. The team focuses on Custom Software Development and Market Research.Read More
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206$50,000+50 - 249 employeesLondon, EnglandE-commerce development company JH was founded in 2009. The team provides E-Commerce Development and UX/UI Design and is based in Nottingham , England and London, England.Read More
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207$25,000+10 - 49 employeesLondon, EnglandVidflow is a small København, Denmark-based video production agency. Founded in 2009, the team provides video production, digital strategy, and social media marketing.Read More
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208$75,000+50 - 249 employeesLondon, EnglandMagiClick Digital is an UX design company. They were founded in 1996 and provide UX/UI Design and Web Development.Read More
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209$1,000+2 - 9 employeesLondon , EnglandUpwelling is a Sevilla, Spain-based user experience company. They focus on UX/UI Design and Content Marketing and were founded in 2015.Read More
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210$5,000+250 - 999 employeesLondon, EnglandLaunched in 2003, Konstant Infosolutions is an application development firm. The midsize Jaipur, India-based team offers Mobile App Development, Artificial Intelligence, UX/UI Design, and Web Development.Read More
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United Nations Volkswagen Stanley Connect DelmonteIndustries
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