Top 100 Usability Testing Companies in London
The Best of March 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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421$1,000+Freelancer employeesLondon, EnglandRyland Consulting - UX Digital Agency is an UX design agency. In London, England and Colwyn Bay, Wales, the team specializes in UX/UI Design and Digital Strategy.Read More
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422Undisclosed2 - 9 employeesLondon, EnglandBrand Percent is a London, England-based branding company. They focus on Branding and Social Media Marketing.Read More
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423$1,000+2 - 9 employeesLondon, EnglandOneless Design is a small web design company. They specialize in Web Design and UX/UI Design and were launched in 2023.Read More
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424$1,000+2 - 9 employeesHarrow, EnglandWeb design company Simplified Website Pros was founded in 2023. The small team offers Web Design and UX/UI Design.Read More
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425$5,000+2 - 9 employeesLondon, EnglandWeb_OGs, a Digital Strategy company, was founded in 2023. The company provides Digital Strategy and Branding.Read More
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426$10,000+10 - 49 employeesLondon, EnglandRead More
Kode Technologies is a small mobile application development firm. They offer mobile app development, ux/ui design, AR/VR development, and web development and were established in 2019.
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427$10,000+10 - 49 employeesLondon, EnglandLaunched in 2021, Flipside Health is a branding agency. The team specializes in Branding and Market Research and is located in London, England.Read More
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428Undisclosed10 - 49 employeesLondon, EnglandBramfitt Technology Labs is a London, England-based Cybersecurity company. Their services include Cybersecurity and UX/UI Design.Read More
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429$1,000+2 - 9 employeesLondon, EnglandLaunched in 2025, Viorix digital solutions is a SEO company. The agency offers Search Engine Optimization, UX/UI Design, Web Development, Mobile App Development, and more and has a small team.Read More
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430Undisclosed2 - 9 employeesLondon, EnglandHoxton Creative Ltd is a SEO agency. Their small team of employees is in London, England. Their team specializes in Search Engine Optimization and Web Design.Read More
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431$10,000+2 - 9 employeesLondon, EnglandARCITY is an user experience agency. Their small team is based in London, England. Their services include UX/UI Design and Product Design.Read More
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432$1,000+2 - 9 employeesWare, EnglandRead More
Heavy Penguin is a digital web agency founded in 2010. Based in Ware, United Kingdom, the team specializes in web development, eCommerce development, and UX/UI design. They primarily serve clients in the eCommerce, government, and consumer products and services agencies. Heavy Penguin designed and developed a corporate website for a landscaping and building company, helping them showcase their work and attract clients. The team also implemented email and contact capabilities.
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ArgosIndustries
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433$10,000+2 - 9 employeesLondon, EnglandArtstay.co is a branding firm. The Prague, Czech Republic-based firm focuses on Branding and UX/UI Design.Read More
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434$10,000+10 - 49 employeesNew Barnet, EnglandRead More
WorkSpin Ltd. Is a mobile application development company. They focus on mobile app development, web development, devops managed services, application management & support, and more and were launched in 2020. The firm is based in New Barnet, United Kingdom.
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Watz GudIndustries
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435Undisclosed2 - 9 employeesHounslow, EnglandEncrypted.bg is a website development company. The Gabrovo, Bulgaria-based firm was founded in 2000. Their team offers Web Development and Branding.Read More
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436Undisclosed50 - 249 employeesLondon, EnglandSIS International Research is a Business Consulting company. The Frankfurt am Main, Germany-based company was established in 1984. Their team provides Business Consulting and Market Research.Read More
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437$5,000+2 - 9 employeesLondon, EnglandWeb design agency RiseForge is headquartered in Tiranë, Albania and London, England. The team provides Web Design and UX/UI Design.Read More
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438$1,000+Freelancer employeesLondon, EnglandSmall web design agency Makely Studio, is in London, England. Established in 2025, the team focuses on Web Design, UX/UI Design, Product Design, Web Development, and more.Read More
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439$1,000+Freelancer employeesLondon, EnglandM2Poweri LTD, a SEO agency, was launched in 2025. The firm specializes in Search Engine Optimization and UX/UI Design, and is small.Read More
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440$50,000+10 - 49 employeesASCOT, EnglandRawnet Ltd is a Digital Strategy company founded in 2002. Located in ASCOT, England, the team offers Digital Strategy and UX/UI Design.Read More
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441Undisclosed250 - 999 employeesCity of London, EnglandIdeyaLabs is an Advertising company launched in 2019. Their team offers Advertising and UX/UI Design.Read More
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442UndisclosedFreelancer employeesLondon, EnglandSmall Content Marketing company Wic Video, is located in London, England. Their services include Content Marketing and Search Engine Optimization.Read More
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443$25,000+2 - 9 employeesLondon, EnglandRead More
We Are Outliers is a custom software development company. They specialize in custom software development, mobile app development, ux/ui design, web design, and more and were founded in 2021. The firm is based in London, United Kingdom.
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444Undisclosed10 - 49 employeesHounslow, EnglandPacific Infotech UK Ltd is a Hounslow, United Kingdom-based branding company. The small team offers branding, web design, ux/ui design, IT strategy consulting, and more and was launched in 2003.Read More
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445UndisclosedFreelancer employeesCity of London, EnglandTrafiki Ecommerce Marketing is a social media marketing company. They are located in City of London, England. Their team offers Social Media Marketing and Search Engine Optimization.Read More
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446$25,000+10 - 49 employeesMaidenhead, EnglandRead More
Software Outsourcing Services (SOS) Ltd is a software company based in Maidenhead, England, and founded in 2016. With no more than 50 employees, they specialize in custom software development, UX/UI design, and application management and support solutions for various clients.
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ClickSoftwareIndustries
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447$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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448$5,000+Freelancer employeesLondon, EnglandMarketing Jam is a small London, England-based Digital Strategy company. Their services include Digital Strategy and Conversion Optimization.Read More
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449Undisclosed10 - 49 employeesLondon, EnglandLaunched in 2017, Optihawk is an user experience company. Their services include UX/UI Design and Conversion Optimization.Read More
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450$1,000+Freelancer employeesEpsom, EnglandWeb App Developer is a web design agency. Their small team is in Epsom, England. Their services include Web Design and Web Development.Read More
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