Top 100 Usability Testing Companies in the United Kingdom
The Best of December 2025Looking for a top usability testing agency in the United Kingdom?
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 United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Usability Testing Services
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151$25,000+10 - 49 employeesCardiff, WalesIllustrate Digital, a small website development firm, is in Cardiff, Wales and Bristol, England. Launched in 2013, the team specializes in Web Development, UX/UI Design, and Web Design.Read More
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Penguin Random HouseIndustries
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152$5,000+50 - 249 employeesLondon, EnglandVersich, a cloud consulting & SI company, is located in London, United Kingdom. The company provides cloud consulting & SI, IT staff augmentation, call center services, commercial financing, funding, & investment, and more and has a midsize team.The company was established in 2023.Read More
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153$5,000+10 - 49 employeesHeslington, EnglandEstablished in 2003, Daydot is a conversion optimization company. In London, United Kingdom, their small team focuses on conversion optimization.Read More
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Wall StreetJournalIndustries
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154$5,000+10 - 49 employeesLondon, EnglandRead More
Located in Birmingham , United Kingdom, Verse is an user experience company. The small team offers ux/ui design, email marketing, web design, and web development and was launched in 2007.
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155$5,000+2 - 9 employeesStevenage, EnglandWeb design agency Due North was established in 2018. Located in Stevenage, United Kingdom, their small team focuses on web design, e-commerce development, conversion optimization, and ux/ui design.Read More
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156$10,000+2 - 9 employeesEdinburgh, ScotlandRead More
Bad Dinosaur is a development company in Edinburgh, Scotland. Founded in 2013, they have about 15 employees that serve small-business and midmarket clients in the financial, education, and business sectors. Services include custom software development, UI/UX design, and mobile app development.
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University of St AndrewsIndustries
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157$25,000+10 - 49 employeesNewcastle upon Tyne, EnglandRead More
Readysalted Design Ltd, a web design agency, was founded in 2003. They are headquartered in Newcastle upon Tyne, United Kingdom and have a small team. Their services include web design, web development, mobile app development, print design, and more.
Clients
SageIndustries
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158$5,000+2 - 9 employeesLondon, EnglandFounded in 2009, Merkur Design is an user experience design agency. Their small team is in London, England and Istanbul, Türkiye. Their team specializes in UX/UI Design, Low/No Code Development, Web Design, Web Development, and more.Read More
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159$1,000+10 - 49 employeesLeeds , EnglandEstablished in 2006, Cefar is a small web design agency. Their team focuses on Web Design, Branding, Search Engine Optimization, UX/UI Design, and more. The agency is based in Leeds , England and London, England.Read More
Clients
Hillsborough Fencing Ginetta NHS Springfield TrainingIndustries
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160$1,000+50 - 249 employeesLondon, EnglandBased in London, England, Codener is a SEO company. The midsize team provides Search Engine Optimization, UX/UI Design, Mobile App Development, E-Commerce Development, and more. The firm was founded in 2019.Read More
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Lezzat LTDIndustries
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161Undisclosed10 - 49 employeesPortsmouth, EnglandRead More
Spark Sales Online is a Portsmouth, United Kingdom-based ecommerce marketing company. The small team offers ecommerce marketing, e-commerce development, ERP consulting and SI, web design, and more. The company was established in 2013.
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162$10,000+2 - 9 employeesLondon, EnglandWebpop Design is a web design company. Their small team is located in London, England. The firm focuses on Web Design, Web Development, and UX/UI Design.Read More
Clients
DatameerIndustries
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163$5,000+10 - 49 employeesLondon, EnglandRead More
POLARIS is an SEO agency in London, England. Founded in 2009, they have about 10 employees that serve mostly small-business and midmarket clients in the business, education, and e-commerce sectors. Services include SEO, PPC, and UI/UX design.
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Paradox LondonIndustries
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164$5,000+2 - 9 employeesLeeds, EnglandAirborne Studio, a branding agency, is headquartered in Leeds, United Kingdom. The small team focuses on branding, web design, ux/ui design, product design, and more and was founded in 2016.Read More
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165$5,000+10 - 49 employeesLondon, EnglandIn London, United Kingdom, Main Menu is a software development firm. The small team offers custom software development, web development, web design, ux/ui design, and more. The agency was launched in 2009.Read More
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166$25,000+10 - 49 employeesLondon, EnglandRead More
Mobile app development company Borne Digital is headquartered in London, UK. Their team of 20 employees also works from offices in Toronto, Canada and New York. Established in 2013, they provide web design, web development, UX/UI design, and branding, on top of mobile app development services. Their clients span all industries but are mostly small and mid-market businesses.
Clients
AsicsIndustries
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167$10,000+50 - 249 employeesManchester, EnglandZAPTA Technologies is a Lahore, Pakistan-based software development firm. The midsize company was established in 2020. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
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168$10,000+10 - 49 employeesLondon, EnglandRead More
ICustomWeb is a website development firm founded in 2018. The company offers web development, web design, and ux/ui design and has a small team. The company is located in Bournemouth, United Kingdom.
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169$5,000+2 - 9 employeesBournemouth, EnglandRead More
Quarter Digital is a Bournemouth, United Kingdom-based web design company. The small agency was founded in 2022. Their team offers web design, ux/ui design, graphic design, and logo.
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CPI Trade MediaIndustries
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170$10,000+2 - 9 employeesNorwich, EnglandBIGFORK is a web design company established in 2010. The small Norwich, England-based team provides Web Design, Web Development, UX/UI Design, and Conversion Optimization.Read More
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NGK (Niterra UK)Industries
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171Undisclosed2 - 9 employeesLondon, EnglandRonins is a web design company. Founded in 2021, the small company is based in London, United Kingdom and Guildford, United Kingdom. Their team specializes in web design, ux/ui design, web development, mobile app development, and more.Read More
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172$1,000+2 - 9 employeesLondon, EnglandVector, a branding company, was launched in 2019. Their small team is located in London, England. Their services include Branding, UX/UI Design, and Web Development.Read More
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173$10,000+10 - 49 employeesLondon, EnglandRead More
Rudo B2B is a small web design company. The London, England-based agency was established in 2016. Their services include Web Design, Web Development, Digital Strategy, Search Engine Optimization, and more.
Clients
Voyager World WideIndustries
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174Undisclosed50 - 249 employeesAshford, EnglandRead More
Eclipse is a midsize Hurley, United Kingdom-based user experience design company. They focus on ux/ui design, conversion optimization, digital strategy, e-commerce development, and more and were launched in 1995.
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175$5,000+10 - 49 employeesLondon, EnglandEpigra is a website development company. They are based in London, England and Istanbul, Türkiye and have a small team that offers Web Development, Web Design, UX/UI Design, Custom Software Development, and more. The agency was established in 2009.Read More
Clients
Gulf InsuranceIndustries
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176$25,000+50 - 249 employeesLondon, EnglandAthlon: Global Design Company is an UX agency launched in 2009. The agency focuses on UX/UI Design, Web Design, Product Design, Web Development, and more and has a midsize team.Read More
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177$10,000+2 - 9 employeesAberdeen City, ScotlandRead More
Based in Los Angeles, Dunclyde is a branding and web agency with a small team of 2. Since 2018, they've specialized in branding, web design, digital strategy, and more for a variety of clients.
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GOMO -
178$1,000+2 - 9 employeesLondon, EnglandRead More
Apptaste is a UI/UX design firm based in London. Founded in 2018, their team of 6 serves clients in the arts and education sectors. Services include screenshot design and app logo design.
Clients
Family Apps LLCIndustries
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179$10,000+2 - 9 employeesNorthampton, EnglandFounded in 2019, Intrface is an UX agency. The agency offers UX/UI Design, Mobile App Development, Web Design, Low/No Code Development, and more and has a small team.Read More
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180$1,000+2 - 9 employeesLondon, EnglandLeojbarnett.co is an user experience design company founded in 2015. The firm specializes in ux/ui design, video production, custom software development, web development, and more and has a small team.Read More
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