Top 100 Usability Testing Companies in the United Kingdom
The Best of January 2026Looking 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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31$100,000+50 - 249 employeesNewcastle upon Tyne, EnglandHedgehog lab is a midsize mobile application development firm. They specialize in Mobile App Development, Artificial Intelligence, UX/UI Design, Custom Software Development, and more and were launched in 2007. The company is headquartered in Newcastle upon Tyne, England.Read More
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Aviva AJ Bell Tesco Bank Under ArmourIndustries
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32$10,000+50 - 249 employeesLondon, EnglandPhenomenon Studio is an UX design company. Their midsize team is in Dover, Delaware; Chicago, Illinois; New York, New York and Los Angeles, California. Their services include UX/UI Design, Web Development, Branding, Web Design, and more. The agency was established in 2019.Read More
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Airportr Nomupay One Text ShagaIndustries
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33$5,000+10 - 49 employeesEdinburgh, ScotlandLumi Design is an user experience design company established in 2020. In Edinburgh, Scotland, their small team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Design, and more.Read More
Clients
Anthemis Stackwell Ovom Care MusiversalIndustries
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34$25,000+10 - 49 employeesLondon, EnglandRead More
Founded in 2017, LoveGunn is a London-based branding and design firm. Their team of fewer than 10 serves small to midmarket businesses across a range of industries. Services include branding as well as web, UX/UI, and graphic design.
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Chelsea Football ClubIndustries
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35$10,000+10 - 49 employeesLondon, EnglandRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
Clients
Vodacom BMW Liberty Life Signal HillIndustries
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36$5,000+10 - 49 employeesWarrington, EnglandRead More
Atomic Digital Marketing / Atomic Digital Labs, a SEO company, is headquartered in Warrington, England; Southampton, England; Edinburgh, Scotland and Cardiff, Wales. Launched in 2018, the small team focuses on Search Engine Optimization, Pay Per Click, UX/UI Design, Web Development, and more.
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RocambolesqueIndustries
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37$75,000+50 - 249 employeesBoston, MARead More
Web development company 10up is headquartered in Sacramento, California; Boston, Massachusetts; New York, New York and London, United Kingdom. The agency provides web development, ux/ui design, web design, digital strategy, and more and is midsize.The agency was established in 2011.
Industries
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38$10,000+10 - 49 employeesLondon, EnglandRead More
Top Notch Dezigns® is a small web design agency. Founded in 2004, the firm is headquartered in New York, New York; Melville, New York; Los Angeles, California and London, England. Their team specializes in Web Design, Search Engine Optimization, Pay Per Click, Web Development, and more.
Clients
Home Depot Meadowbrook Financial Mortgage Bankers Long Island University Student Nursing Association (SNA) CassoneIndustries
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39$1,000+50 - 249 employeesLondon, EnglandProduct Design company Duck.Design is located in London, England and New York, New York. They specialize in Product Design, Graphic Design, Branding, Web Design, and more and were launched in 2017.Read More
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FarsightIndustries
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40$10,000+50 - 249 employeesLondon, EnglandWebsite development company Snotor was established in 2007. They are in Rīga, Latvia; London, England and Khmel'nyts'kyi, Ukraine and have a midsize team. Snotor provides Web Development, Mobile App Development, UX/UI Design, IT staff augmentation, and more.Read More
Clients
Defero Hypefill Wellics IsobioticsIndustries
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41$5,000+10 - 49 employeesLondon, EnglandRead More
Launched in 1991, Make it Clear is a UX agency. The small London, United Kingdom-based team provides ux/ui design, marketing strategy, digital strategy, graphic design, and more.
Clients
Cambridge University Press & AssessmentIndustries
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42$50,000+50 - 249 employeesLondon, EnglandRead More
Supercharge is a digital production firm that is headquartered in Budapest, Hungary with a second office in London. Founded in 2010, Supercharge's team of more than 100 employees specializes in web and mobile app development. The firm also offers UI/UX design services to its clients.
Industries
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43$10,000+10 - 49 employeesLondon, EnglandRead More
In London, England and Odesa, Ukraine, Solar Digital is a website development firm. The firm specializes in Web Development, Web Design, UX/UI Design, Custom Software Development, and more and is small.The firm was founded in 2016.
Clients
Stark Shipping (analytical portal of marine industryIndustries
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44$5,000+10 - 49 employeesLondon, EnglandRead More
Applica is a small Mobile & App Marketing company. Established in 2021, the agency is in London, England and L'viv, Ukraine. Their services include Mobile & App Marketing, Conversion Optimization, UX/UI Design, and Mobile App Development.
Clients
DropsIndustries
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45$10,000+50 - 249 employeesLondon, EnglandRead More
Rhapsody is a Digital Strategy company founded in 1980. The company focuses on Digital Strategy, Web Design, Branding, E-Commerce Development, and more and has a midsize team. The company is in London, England; Tres Cantos, Spain; Warszawa, Poland and Bijeljina, Bosnia and Herzegovina.
Clients
SpotifyIndustries
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46$10,000+10 - 49 employeesLondon, EnglandHiyield is a web design company. They are located in London, England; Truro, England and Bristol, England and have a small team. Their services include Web Design, UX/UI Design, Custom Software Development, Web Development, and more. The agency was established in 2018.Read More
Industries
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47$10,000+10 - 49 employeesLondon, EnglandFormat-3 is a small user experience company. Established in 2023, the agency is headquartered in London, England and Nashville, Tennessee. Their services include UX/UI Design, Digital Strategy, Custom Software Development, and Web Development.Read More
Clients
Natural History Museum TripleKey JojoBet DailyWireIndustries
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48$50,000+10 - 49 employeesBerlin, GermanyBoldheart, a mobile application development firm, was founded in 2020. The agency specializes in Mobile App Development, Custom Software Development, UX/UI Design, IT strategy consulting, and more and has a small team. The agency is in Berlin, Germany; München, Germany; Zürich, Switzerland and Wien, Austria.Read More
Clients
ValoraIndustries
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49$10,000+2 - 9 employeesLondon, EnglandUniko Studio, a branding agency, was launched in 2022. The company provides branding, web design, ux/ui design, logo, and more and has a small team. The company is based in London, United Kingdom and دبي, United Arab Emirates.Read More
Industries
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50$10,000+50 - 249 employeesL'viv, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
Clients
OnlyFansIndustries
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51$10,000+10 - 49 employeesLondon, EnglandRead More
Plug & Play is a UX/UI agency based in London and Surrey. Founded in 2007, they are specialists in user experience and user interface design for software, websites and custom applications. They also have a front-end development service to support clients with the design implementation. Plug & Play work across a number of sectors with their clients ranging from funded startups to large corporations such as Legal & General.
Clients
WWF Powerleague Give A Grad A Go RSL AwardsIndustries
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52$25,000+2 - 9 employeesLondon, EnglandRead More
Super User Studio is a design consultancy headquartered in London, with an office in Bath, United Kingdom. Since 2008, their small team of 9 has been specializing in UX/UI design for mainly enterprise-level clients. They primarily serve clients in the business services and financial services industries.
Clients
AMT Sybex (Capita)Industries
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53$10,000+10 - 49 employeesLondon, EnglandRead More
TopDevs is a small website development company located in London, England and Burnaby, Canada. Launched in 2009, the team specializes in Web Development, Mobile App Development, and UX/UI Design.
Clients
SolocatorIndustries
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54$10,000+10 - 49 employeesLondon, EnglandRead More
CodeLeap is a London, United Kingdom-based application development firm. The small team specializes in mobile app development, web development, Artificial Intelligence, AR/VR development, and more. The company was founded in 2019.
Industries
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55$5,000+10 - 49 employeesLondon, EnglandRead More
Slick is an UX design agency. The small San Jose, California-based company was founded in 2021. Their team specializes in UX/UI Design, Web Design, and Product Design.
Industries
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56$10,000+10 - 49 employeesBristol, EnglandFounded in 1998, Mentor Digital is a small web development firm. Their team specializes in Web Development, Web Design, Branding, Search Engine Optimization, and more. The company is based in Bristol, England and London, England.Read More
Clients
Tree AidIndustries
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57$10,000+2 - 9 employeesFarnham, EnglandFull Clarity is a Farnham, England-based UX design company. The small team provides UX/UI Design, Advertising, Custom Software Development, Web Development, and more. The company was founded in 2018.Read More
Clients
ITVIndustries
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58$10,000+10 - 49 employeesLondon, EnglandEqual is a São Domingos de Rana, Portugal-based UX agency. The small team focuses on UX/UI Design, Product Design, Custom Software Development, Web Design, and more and was established in 2019.Read More
Clients
Management systems for Hospitality Management systems for Construction Management systems for Logistics Management systems for Energy & UtilityIndustries
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59$25,000+10 - 49 employeesLondon, EnglandTogether is a branding company launched in 2018. The small team specializes in Branding, UX/UI Design, Product Design, Web Development, and more. The agency is located in London, England; New York, New York and San Francisco, California.Read More
Clients
UnitIndustries
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60$10,000+10 - 49 employeesLondon, EnglandRead More
Cloudflex, a custom software development firm, is in Kyiv, Ukraine. The small team specializes in custom software development, mobile app development, web development, Artificial Intelligence, and more. The firm was founded in 2018.
Clients
YazaIndustries
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