Top 100 Usability Testing Companies in London
The Best of June 2026Looking 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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241$5,000+50 - 249 employeesLondon, EnglandTwoFiftyFive by LGG is an UX design agency in London, England and Madrid, Spain. They focus on UX/UI Design and Product Design and were established in 2017.Read More
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Mastercard Nintendo Bentley Quercus -
242$5,000+2 - 9 employeesLondon, EnglandLocated in London, England, LOOT Studio is a web design agency. They provide Web Design and UX/UI Design and were founded in 2012.Read More
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243$1,000+10 - 49 employeesFitzrovia, London, EnglandWeb development firm OWA Digital is based in Oxford, England and Fitzrovia, London, England. Their services include Web Development and Mobile App Development.Read More
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244$5,000+2 - 9 employeesLondon, EnglandHAUS OF EL is an UX design agency. Based in London, England, the firm was founded in 2022. Their services include UX/UI Design and Branding.Read More
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245$10,000+10 - 49 employeesLondon, EnglandInnolab AI is a small artificial intelligence firm. The Columbus, Ohio-based firm was launched in 2020. Their services include Artificial Intelligence, UX/UI Design, Web Development, Mobile App Development, and more.Read More
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Buddy Lee Jump RopeIndustries
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246$250,000+50 - 249 employeesLondon, EnglandFounded in 2019, ParsBiz is an advertising company. Their midsize team is in Santa Monica, California; Paris, France; München, Germany and Madrid, Spain. Their team provides advertising, branding, social media marketing, content marketing, and more.Read More
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247$1,000+2 - 9 employeesLondon, EnglandFounded in 2006, Different Projects Ltd. Is a small UX agency located in London, England. Their team offers UX/UI Design and Digital Strategy.Read More
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248$1,000+2 - 9 employeesLondon, EnglandIn London, England, Particular Agency is an user experience design agency. Established in 2022, the team focuses on UX/UI Design and Branding.Read More
Clients
Rushmoor Knights AcademyIndustries
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249$50,000+10 - 49 employeesLondon, EnglandBlank Space is an user experience company. The small Mississauga, Canada-based agency was founded in 2014. Their team offers UX/UI Design, Mobile App Development, Low/No Code Development, Custom Software Development, and more.Read More
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Dunkin'Industries
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250$1,000+10 - 49 employeesLondon, EnglandAddmustard, a small branding company, is located in Brighton and Hove, England and London, England. The team specializes in Branding and UX/UI Design.Read More
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251$5,000+10 - 49 employeesLondon, EnglandBold Insight is an UX design agency. Their small team of employees is headquartered in London, England and Downers Grove, Illinois. Their team provides UX/UI Design.Read More
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252Undisclosed50 - 249 employeesLondon, EnglandUser experience company Canvendor is based in Dublin, California and Chennai, India. The team provides UX/UI Design and IT strategy consulting.Read More
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253$1,000+2 - 9 employeesLondon, EnglandBxoft is a web development firm. The London, England-based firm was launched in 2019. Their team specializes in Web Development and Web Design.Read More
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STCIndustries
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254$10,000+10 - 49 employeesLondon, EnglandRetailogy, an e-commerce development firm, is located in London, England. The team provides E-Commerce Development and Web Development.Read More
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255$10,000+2 - 9 employeesLondon, EnglandFounded in 2004, Thinkpublic is an user experience design company. Based in London, England, the team provides UX/UI Design and Web Design.Read More
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256$75,000+250 - 999 employeesLondon, EnglandAW Solutions is a branding firm. The New York, New York-based company was founded in 2011. Their team offers Branding and Email Marketing.Read More
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257$5,000+10 - 49 employeesLondon, EnglandFZHP Global Vision is a mobile & app marketing company. The small team is in London, United Kingdom; 5900 Balcones, Austin, TX, USA., and Niagara Falls, Canada. Their services include mobile & app marketing, social media marketing, search engine optimization, other digital marketing, and more.Read More
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258$25,000+50 - 249 employeesLondon , EnglandBranding company VIVALDI_ is based in New York, New York and London , England. The team offers Branding and Marketing Strategy.Read More
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259$100,000+50 - 249 employeesLondon, EnglandTom&Co. Is a web design agency launched in 2010. The midsize team offers Web Design and UX/UI Design.Read More
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260$25,000+10 - 49 employeesLondon, EnglandUser experience design agency 100 Shapes focuses on UX/UI Design and Custom Software Development. They were founded in 2011.Read More
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261$25,000+50 - 249 employeesLondon, EnglandRead More
Box UK is an enterprise software development company based in Cardiff, UK, with an office in London. The company, founded in 1998, has more than 50 employees who provide, among others, custom software development, web development, and enterprise app modernization services to various businesses.
Clients
OKdo.comIndustries
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262$5,000+10 - 49 employeesLondon, EnglandQTech is a website development company established in 1999. In Amman, Jordan; Dubai, United Arab Emirates and London, England, their small team focuses on Web Development, Mobile App Development, E-Commerce Development, UX/UI Design, and more.Read More
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263$10,000+10 - 49 employeesLondon, EnglandEastside Co is an e-commerce development firm. Located in London, England, the team offers E-Commerce Development and Web Design.Read More
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264Undisclosed50 - 249 employeesLondon, EnglandIn London, England, This Place is an UX design agency. They focus on UX/UI Design and Web Design.Read More
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265$1,000+50 - 249 employeesLondon, EnglandCustom software development firm MacdoSoft was established in 2024. The company specializes in Custom Software Development and UX/UI Design, and is midsize.Read More
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266Undisclosed10 - 49 employeesLondon, EnglandInventiff., a website development firm, was established in 2020. Headquartered in Cluj-Napoca, Romania and London, England, their small team specializes in Web Development, Mobile App Development, Artificial Intelligence, UX/UI Design, and more.Read More
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267$5,000+2 - 9 employeesLondon, EnglandInFact Digital Co-operative, a web design company, was launched in 2017. Headquartered in London, England, the team focuses on Web Design and Web Development.Read More
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268$50,000+2 - 9 employeesLondon, EnglandLaunched in 2005, Arch is a small web development company. Their services include Web Development, Mobile App Development, Artificial Intelligence, Web Design, and more. The firm is in Gateshead, England; London, England and Edinburgh, Scotland.Read More
Clients
The City of Edinburgh Council NHS England H2OiQ DreamworksIndustries
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269$10,000+10 - 49 employeesLondon, EnglandRead More
The Sound Pipe Media is an app development firm founded in 2009. Based in London, the team of 6 specializes in mobile app development and UX/UI design. They mainly focus on serving the advertising and marketing, entertainment, and business services industries.
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SunseekerIndustries
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270$5,000+2 - 9 employeesLondon, EnglandUX design company WASRS was founded in 2024. The agency specializes in UX/UI Design and Web Design, and is small.Read More
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