Top 100 Usability Testing Companies in London
The Best of October 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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31$10,000+50 - 249 employeesLondon, EnglandLocated in Dubai, United Arab Emirates; Kraków, Poland and London, England, Selecto is an user experience company. The midsize team focuses on UX/UI Design and was founded in 2014.Read More
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AbbottIndustries
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32$50,000+50 - 249 employeesLondon, EnglandSupercharge is a Budapest, Hungary-based AI Agents company. Launched in 2010, the midsize team provides AI Agents, Custom Software Development, Mobile App Development, UX/UI Design, and more.Read More
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33$50,000+250 - 999 employeesLondon, EnglandMethod is a midsize UX agency. They specialize in UX/UI Design, Custom Software Development, Digital Strategy, Mobile App Development, and more and were launched in 1999. The agency is located in New York, New York; London, England; Santa Clara, California and Charlotte, North Carolina.Read More
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34$10,000+10 - 49 employeesLondon, EnglandMobile app development firm CodeLeap was founded in 2019. Headquartered in London, England, their small team focuses on Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.Read More
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35$50,000+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
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UnitIndustries
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36$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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37$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.
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YazaIndustries
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38$10,000+10 - 49 employeesLondon, EnglandRead More
Established in 2013, Inktrap is a small SEO agency. Their team focuses on search engine optimization, web design, advertising, ux/ui design, and more. The firm is based in London, United Kingdom.
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PwC TysersIndustries
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39$1,000+1,000 - 9,999 employeesLondon, EnglandRead More
Zerocoder is a London, United Kingdom-based software development firm. The large firm was founded in 2023. Their services include custom software development, web development, mobile app development, web design, and more.
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40$25,000+250 - 999 employeesLondon, EnglandRobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
Clients
Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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41$5,000+10 - 49 employeesLondon, EnglandTHEY.dev is a custom software development firm. They provide Custom Software Development, UX/UI Design, Mobile App Development, Application Testing, and more and were established in 2017. Their small team is London, England-based.Read More
Clients
LaunchworksIndustries
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42$10,000+2 - 9 employeesLondon, EnglandFellow Studio is a branding agency based in London, England. The small agency was launched in 2012. Their services include Branding, Graphic Design, Web Design, UX/UI Design, and more.Read More
Clients
Travel SentryIndustries
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43$10,000+50 - 249 employeesLondon, EnglandSignifly is a branding company established in 2010. They are located in Montréal, Canada; København, Denmark; Oslo, Norway and Stockholm, Sweden and have a midsize team. The company specializes in Branding, E-Commerce Development, Marketing Strategy, Digital Strategy, and more.Read More
Clients
GoogleIndustries
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44$10,000+10 - 49 employeesLondon, EnglandRead More
Creathive is an UX agency. Their small team is based in İstanbul, Turkey and provides ux/ui design, branding, mobile app development, and web development. The firm was founded in 2016.
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GetirIndustries
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45$25,000+50 - 249 employeesLondon, EnglandWebsite development firm Deeep was established in 2009. The midsize team provides Web Development, Custom Software Development, UX/UI Design, Low/No Code Development, and more. The firm is headquartered in London, England and Dubai, United Arab Emirates.Read More
Clients
Societe Generale Group Emirates NBD Bank SBI Bank 24AI & 24ORMIndustries
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46$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.
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47$50,000+10 - 49 employeesLondon, EnglandRead More
NEVERBLAND is a web development firm. They provide web development, web design, ux/ui design, custom software development, and more and were launched in 2010. Their small team is London, United Kingdom-based.
Clients
TogetherallIndustries
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48$5,000+50 - 249 employeesLondon, EnglandPixelfield is an user experience company. Founded in 2012, the firm is in London, England and Praha 8, Czech Republic. The midsize team provides UX/UI Design, Product Design, Mobile App Development, Artificial Intelligence, and more.Read More
Clients
Raiffeisen BankIndustries
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49$10,000+10 - 49 employeesLondon, EnglandRead More
Glorify Ltd is a small UX company. The London, United Kingdom-based company was founded in 2019. Their team focuses on ux/ui design.
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50$10,000+10 - 49 employeesLondon, EnglandRattlesnake Group, a branding company, was founded in 2020. The company specializes in Branding, UX/UI Design, Custom Software Development, Web Design, and more and has a small team.Read More
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51$10,000+10 - 49 employeesLondon, EnglandRead More
Sell Staged is a London-based web and mobile app development company founded in 2019 with no more than 50 professionals. They specialize in web development, mobile app development, and UX/UI design solutions for clients ranging from small firms to large companies.
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GymCallIndustries
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52$25,000+10 - 49 employeesLondon, EnglandRead More
Yalla is an UX design company. They are in London, United Kingdom and Gaza City, Palestine, State of and have a small team that specializes in ux/ui design, custom software development, web design, web development, and more. The agency was launched in 2019.
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Shannon TrustIndustries
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53$10,000+10 - 49 employeesLondon, EnglandFounded in 2016, Solar Digital is a website development company. The company specializes in Web Development, AI Agents, Custom Software Development, UX/UI Design, and more and has a small team. The company is headquartered in London, England and Odesa, Ukraine.Read More
Clients
Stark Shipping (analytical portal of marine industryIndustries
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54$25,000+10 - 49 employeesLondon, EnglandIn London, England, Contic is an application development firm. They provide Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more and were founded in 2021.Read More
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55$25,000+10 - 49 employeesLondon, EnglandEstablished in 2019, 27 Nerds is a website development company. Based in Ivano-Frankivs'k, Ukraine; London, England and Wrocław, Poland, their small team specializes in Web Development, UX/UI Design, Web Design, Custom Software Development, and more.Read More
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56$10,000+2 - 9 employeesLondon, EnglandRead More
Lemonat is a digital product design agency that was founded in 2012. Their 9-person team is headquartered in London with offices in Istanbul. They offer UX/UI design, web design, and digital strategy services to midmarket companies in the spaces of financial services, arts and entertainment, and e-commerce.
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Turkcell (Gsm operator)Industries
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57$5,000+2 - 9 employeesLondon, EnglandMobile app development firm Fortnight was established in 2014. Their small team is in London, England; Manchester , England and Wien, Austria. Their services include Mobile App Development, UX/UI Design, Branding, Web Design, and more.Read More
Clients
OnePlusIndustries
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58$10,000+10 - 49 employeesLondon, EnglandExperience Dynamics is a Seattle, Washington-based UX design agency. The small team specializes in UX/UI Design and AI Consulting. The agency was established in 2001.Read More
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NikeIndustries
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59$1,000+2 - 9 employeesLondon, EnglandZero To Design, an user experience agency, is in London, England; Barcelona, Spain and Lisbon, Portugal. The firm focuses on UX/UI Design and Web Design and has a small team.The firm was founded in 2021.Read More
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60$10,000+50 - 249 employeesLondon, EnglandRead More
Kernelics is a software development company founded in 2020 with over 50 employees. They provide web development, mobile app development, and AI solutions from their office in Minsk, Belarus. They work with small businesses across various industries.
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