Top 100 Usability Testing Companies in the United Kingdom

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Top 100 Usability Testing Companies in the United Kingdom

The Best of November 2026

Looking 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. 

Jump to Most Reviewed Companies

List of the Best United Kingdom Usability Testing Services

  • 151
    (6 Reviews) 4.9

    Timeliness

    4.5

    Service Excellence

    4.8

    Value

    4.3

    Would Recommend

    5.0
    $5,000+
    50 - 249 employees
    Cardiff, Wales
    Box UK, a custom software development firm, was launched in 1998. The agency provides Custom Software Development, Enterprise App Modernization, Web Development, UX/UI Design, and more and has a midsize team.
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    Clients

    OKdo.com

    Industries

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  • 152
    (16 Reviews) 4.7

    Timeliness

    4.5

    Service Excellence

    4.5

    Value

    4.6

    Would Recommend

    4.8
    $25,000+
    50 - 249 employees
    London, England
    Incepteo Labs is a midsize artificial intelligence development company. The London, England-based company was founded in 2007. Their services include Artificial Intelligence, Mobile App Development, UX/UI Design, Custom Software Development, and more.
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    Clients

    Geodis

    Industries

  • 153
    (3 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    5.0
    $5,000+
    2 - 9 employees
    London, England
    Founded 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.
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    Industries

  • 154
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.8

    Would Recommend

    5.0
    Undisclosed
    10 - 49 employees
    Portsmouth, England

    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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    Industries

  • 155
    (3 Reviews) 5.0

    Timeliness

    4.7

    Service Excellence

    5.0

    Value

    4.8

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    London, England
    In 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.
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    Industries

  • 156
    (9 Reviews) 4.3

    Timeliness

    4.2

    Service Excellence

    4.3

    Value

    3.9

    Would Recommend

    4.4
    $25,000+
    50 - 249 employees
    London, England
    Athlon: 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

    Industries

  • 157
    (7 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.5

    Would Recommend

    5.0
    $10,000+
    2 - 9 employees
    London, England
    Webpop 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.
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    Clients

    Datameer

    Industries

  • 158
    (20 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    50 - 249 employees
    London, England

    Located in London, England, Pocket App is a mobile app development company. Established in 2010, the midsize team offers Mobile App Development, UX/UI Design, and Web Development.

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    Industries

  • 159
    (7 Reviews) 4.8

    Timeliness

    4.6

    Service Excellence

    4.8

    Value

    4.4

    Would Recommend

    4.9
    $75,000+
    50 - 249 employees
    London, England

    Beyond is a design and technology agency located in London, New York and San Francisco. Founded in 2010, they have over 150 employees that serve clients in a wide-range of industries. Services range from customer experience audit and user & market research to learning content creation, experience design and service design.

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    Clients

    Google

    Industries

  • 160
    (9 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    5.0
    $25,000+
    10 - 49 employees
    London, England

    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.

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    Clients

    Asics

    Industries

  • 161
    (7 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.9

    Value

    4.5

    Would Recommend

    5.0
    $10,000+
    2 - 9 employees
    Edinburgh, Scotland

    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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    Clients

    University of St Andrews

    Industries

  • 162
    (2 Reviews) 4.8

    Timeliness

    4.5

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    5.0
    $25,000+
    10 - 49 employees
    London, England
    Crazydes is an UX design agency launched in 2017. The agency focuses on UX/UI Design and has a small team. The agency is headquartered in Kochi, India and London, England.
    Read More

    Clients

    Qatar Rails

    Industries

  • 163
    (7 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.6

    Would Recommend

    4.9
    $5,000+
    10 - 49 employees
    Heslington, England
    Established in 2003, Daydot is a conversion optimization company. In London, United Kingdom, their small team focuses on conversion optimization.
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    Clients

    Wall StreetJournal

    Industries

  • 164
    (5 Reviews) 4.5

    Timeliness

    4.6

    Service Excellence

    4.5

    Value

    4.1

    Would Recommend

    4.7
    $100,000+
    10 - 49 employees
    London, England

    Future Platforms is a London based digital agency. Founded in 2000, Future Platforms employs a team of 39 specialists that provide e-commerce,​ ​​​​​​mobile app, and wearable app development.

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    Clients

    Domino’s Pizza

    Industries

  • 165
    (6 Reviews) 4.9

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    4.7
    $10,000+
    10 - 49 employees
    London, England

    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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    Industries

  • 166
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.9

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    London, England
    Epigra 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 Insurance

    Industries

  • 167
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    Manchester, England
    UX agency Pixeltree was founded in 2012. The firm focuses on UX/UI Design, Product Design, Conversion Optimization, Digital Strategy, and more and has a small team. The firm is located in Manchester, England.
    Read More

    Clients

    Big Bus Tours

    Industries

  • 168
    (3 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    5.0

    Value

    4.8

    Would Recommend

    5.0
    Undisclosed
    50 - 249 employees
    Ashford, England

    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.

    Read More
  • 169
    (6 Reviews) 4.9

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    London, England
    Ecommerce Marketing company Codener is based in London, England. Established in 2020, the small team focuses on Ecommerce Marketing, Web Design, Web Development, and UX/UI Design.
    Read More

    Clients

    Lezzat LTD

    Industries

  • 170
    (5 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    London, England

    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.

    Read More

    Clients

    Family Apps LLC

    Industries

  • 171
    (4 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    5.0
    $50,000+
    50 - 249 employees
    London, England

    ClerksWell is a custom software development firm. They are headquartered in London, United Kingdom and have a midsize team that focuses on custom software development, web development, IT strategy consulting, web design, and more. The firm was founded in 1996.

    Read More

    Industries

  • 172
    (14 Reviews) 5.0

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    5.0

    Would Recommend

    4.9
    $1,000+
    2 - 9 employees
    London, England
    Vector, 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

    Industries

  • 173
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    2 - 9 employees
    London, England

    Animus Bytes is an UX design company. Founded in 2020, the team focuses on ux/ui design, custom software development, web development, and mobile app development. Their small firm is headquartered in London, United Kingdom.

    Read More

    Clients

    Skydrocell

    Industries

  • 174
    (14 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    4.9
    $5,000+
    10 - 49 employees
    Leicester, England
    Bulb Studios is a small Digital Strategy company in Leicester, England. Founded in 2007, the team provides Digital Strategy, IoT development, UX/UI Design, Branding, and more.
    Read More

    Clients

    Jaguar Land Rover

    Industries

  • 175
    (6 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.8

    Would Recommend

    5.0
    $5,000+
    2 - 9 employees
    Stevenage, England
    Web 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

    Industries

  • 176
    (7 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    4.9
    $1,000+
    2 - 9 employees
    London, England
    Leojbarnett.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

    Industries

  • 177
    (5 Reviews) 4.7

    Timeliness

    5.0

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.7
    $25,000+
    10 - 49 employees
    London, England
    Founded in 2019, Drewl is a small UX design company. Their team specializes in UX/UI Design, Web Development, and Web Design. The firm is in London, England.
    Read More

    Industries

  • 178
    (5 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    London, England

    CyBearSoft is a software development firm. Established in 2021, the small agency is in London, United Kingdom. Their team specializes in custom software development, web development, and mobile app development.

    Read More

    Industries

  • 179
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    London, England

    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.

    Read More

    Clients

    Paradox London

    Industries

  • 180
    (5 Reviews) 5.0

    Timeliness

    4.7

    Service Excellence

    4.8

    Value

    4.2

    Would Recommend

    4.6
    $1,000+
    10 - 49 employees
    Leeds , England
    Established 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 Training

    Industries

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