Top 100 Usability Testing Companies in the United Kingdom

UX Connections is a design agency founded in London in 2013 with fewer than 50 experts. They specialize in UX/UI design, market research, and digital strategy solutions for clients ranging from small firms to large companies.

Based in London, UK, Creative Navy's team of about 10 employees focuses entirely on UX/UI design. This agency works across a broad spectrum of industries, partnering with startups as well as established brands on mobile apps (iOS, Android, etc.), web and native apps (macOS, embedded, devices), and other projects.

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.

Browser London is a digital product agency based in London, United Kingdom. This company has 11 employees and was founded in 2008. Services offered by Browser London include UI/UX design, web design, and custom software development for companies of all sizes.

Lighthouse is a specialist UX and UI design agency, founded in London but now working together from all over the globe.
Founded in 2008, the Lighthouse team use cutting edge design, collaboration and experience to solve the most complex problems. Lighthouse partner with both well-established enterprise businesses seeking to inject life into under-performing applications, and funded startups ready to progress their product. These are typically headed up by seasoned founders who love the process as well as the outcome.

Precode, an user experience design company, was established in 2018. They are in London, United Kingdom and have a small team. Their services include ux/ui design.

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.

Digital product studio Series Eight is located in London. Since the company's founding in 2014, their small team of five has specialized in web design and development, UX/UI design, branding, and more with primarily small and mid-market businesses.

Glorify Ltd is a small UX company. The London, United Kingdom-based company was founded in 2019. Their team focuses on ux/ui design.

GCD is a custom software development company. Established in 1999, the team specializes in custom software development, ux/ui design, application management & support, mobile app development, and more. Their small company is Lurgan, United Kingdom-based.

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.

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.

Elixel is an UX design company. Their small team is in Plymouth, United Kingdom. Their services include ux/ui design, mobile app development, web design, and web development. The company was established in 2012.

Format-3, a small user experience design company, is in manchester, United Kingdom. Launched in 2023, the team offers ux/ui design, digital strategy, and web design.

Launched in 2021, Zero To Design is a small UX agency headquartered in London, United Kingdom; Barcelona, Spain and Lisbon, Portugal. Their services include ux/ui design and web design.

Torchbox is a web design agency launched in 2000. The firm focuses on web design, web development, ux/ui design, pay per click, and more and has a midsize team.

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.

Limeup is a Product Design Studio headquartered in London, United Kingdom. It was founded in 2019 and has since grown to over 20 employees and helped over 50 companies create stellar designs for their products. They primarily serve clients from Fintech and Gambling industries.

Located in Ahmedabad, India with additional offices in the US and UK, Innovify has been delivering high quality solutions since 2011. Although the team of nearly 130 specializes in mobile app development, they also engage in growth hacking, consulting, and UX design.

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.

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.

LION+MASON is an UX design agency. Founded in 2016, the team provides ux/ui design. Their small firm is London, United Kingdom-based.

Atomic Digital Marketing is a digital marketing agency headquartered in Stretton Warrington, United Kingdom. Founded in 2016, their team of 4 provides SEO, web design, PPC management, and social media marketing. Their specialties are WordPress development and Facebook advertising. 

Founded in 1998, AtomicMedia is a digital agency that works with enterprise, mid market, and small businesses. With two UK offices in Nottingham and Shoreditch, the team of 50  specialize in mobile app development, SEO, content marketing, PPC, web design, UX/UI design, and web development services for client.

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.

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.

Caboodle UX Studio is a design company located in Winchester, Hampshire, England. Their team of around five employees provides UX/UI services and custom software development for businesses of all sizes. Primarily, they work in the financial and consumer services industries.  

Elsewhen, a midsize software development firm, is located in London, United Kingdom. Their services include custom software development, enterprise app modernization, IT strategy consulting, business consulting, and more.

Uniko 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.

Hiyield is a small website development firm located in St. Austell, United Kingdom. Launched in 2018, the team focuses on web development, custom software development, ux/ui design, application management & support, and more.