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Top IT Service Providers in the UK

121 of 578 IT service providers ranked on evidence in the Q4 2026 edition.

Between them, the 575 best-ranked of these 585 IT service providers cover web development (528), web design (473), UI/UX design (336) and IT services (331). They also list work in London and Ahmedabad. 574 of them have written a profile you can read before you get in touch.

TrustList ranks more than 1,600 IT service providers in the UK, ordered on client reviews and profile quality, never on payment. At the top right now: Eton Digital Limited, Drupal Teams and Marzee Labs.

Narrow it down by what you need: Web Development (1,531) · Web Design (1,385) · IT Services (871) · Software Development (443) · Mobile App Development (411) · E-Commerce Development (289).

TrustList ranking

Q4 2026 edition

121 of 578 IT service providers ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

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Only businesses that have told TrustList match a filter. Filters never change the order or a score.

  1. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
  2. BD

    Web Development · Web Design · IT Services

    Bradbourne Digital is a small digital and IT consultancy that began trading in 2016.

    On record: Based in North East England

  3. Brand42 logo

    Social Media Marketing · Web Development · Web Design · Also in London

    Brand42 is an independent design and digital agency based in London with a global focus.

    On record: Based in London, UK

  4. Breed Reply logo

    Web Development · Web Design · UI/UX Design

    Specialist member of the Reply network designing digital media and communication-channel solutions for large European groups

    On record: Based in Billingsgate, London, U, 10143

  5. Brigantia Partners Limited logo

    Web Development · Web Design · UI/UX Design

    Brigantia Partners Limited is a UK value-added distributor that supplies cyber security products with data communications and cloud services.

  6. BRIGHTMAST logo

    Web Development · Web Design · UI/UX Design

    BRIGHTMAST is a software company that uses artificial intelligence and cognitive computing to automate business tasks, decisions and processes.

  7. Britecloud logo

    Web Development · Web Design · IT Services

    Britecloud was a UK-based value added distributor that worked globally.

    On record: Based in United Kingdom

  8. BT logo

    Web Development · Web Design · UI/UX Design

    BT is a long-established telecommunications company. It says its history goes back around 180 years to the first telecoms business in the world.

  9. CaJSoft logo

    Mobile App Development · Custom Software Development · Web Development

    CaJSoft Ltd is a small web and software development company in Glasgow, Scotland.

    On record: Based in Glasgow, Scotland

  10. Capita logo

    Web Development · Web Design · UI/UX Design

    Capita describes itself as a consulting, digital services and software business that works between businesses and their customers, and between governments and citizens.

  11. Capita IT Professional Services logo

    Web Development · Web Design · UI/UX Design

    Capita IT Professional Services is the technology consulting arm of Capita.

  12. Casperon Technologies Private Ltd logo

    Mobile App Development · Web Development · Web Design · Also in Chennai

    Casperon Technologies Private Ltd is a software company building websites, mobile applications, business intelligence tools and Internet of Things products.

    On record: Office in United Kingdom

  13. Catalyst IT Europe Limited logo

    Custom Software Development · Web Development · Web Design

    Catalyst IT Europe Limited is the European arm of Catalyst IT, a company built around open-source software.

  14. Catch Digital logo

    Web Development · SEO · Drupal

    Catch Digital is a digital experience agency based in London. It pairs storytelling with technology to build websites and digital products for brands across several sectors.

    On record: Based in London, UK

  15. CDW UK logo

    Web Development · Web Design · UI/UX Design

    CDW UK is the British business of CDW, a provider of technology products and services. It supplies IT to business, government and education customers.

  16. Celer Technologies logo

    Web Development · Web Design · UI/UX Design

    Celer Technologies builds a trading platform for financial firms that trade across several asset classes.

  17. Certus Technology Group logo

    Web Development · Web Design · IT Services

    Certus Technology Group provides IT support, hosting and backup services to businesses across the UK.

    On record: Based in South Wales and Hemel Hempstead

  18. C

    Social Media Marketing · Video Games Development · Web Development

    Chroma designs, builds and manages digital sports products. Its work centres on the quality of the user experience and on keeping audiences engaged with each product, and it…

    On record: Based in London, Brighton and Sydney

  19. CineGo logo

    Web Development · Web Design · UI/UX Design

    CineGo is a subscription service aimed at making cinema trips simpler. It pairs a membership with an app that helps people decide where and when to watch a film.

  20. CL&SMA Limited logo

    Web Development · Web Design · IT Services

    CL&SMA Limited is a software development company for growing organisations. It builds web, mobile and hybrid applications and focuses on high-performance work.

  21. Clariter logo

    Social Media Marketing · Web Development · Web Design

    Clariter works on digital reputation and customer engagement. It joins laboratory-style testing, crowd-sourced participation and analysis of customer sentiment, all handled by an…

  22. CleverLEAF Technology logo

    Web Development · Web Design · IT Services · Also in Russia

    CleverLEAF Technology is a young technology company headquartered in London that works internationally.

    On record: Based in London, United Kingdom

  23. Cloudwise Solutions logo

    Web Development · Web Design · UI/UX Design

    Opened in early 2017 by two directors, Cloudwise Solutions is a UK recruitment and technology consultancy that describes itself as a family-run firm.

    On record: Family business

  24. Cocoon Development Ltd logo

    Mobile App Development · Web Development · Web Design

    Cocoon Development Ltd is a small team of designers and developers that builds digital products. It puts user experience first while keeping the design strong.

    On record: Small team

  25. Code Enigma logo

    Web Development · Web Design · WordPress · Also in London

    Drupal agency that develops, hosts and supports websites and web applications for publishers, public bodies and charities

    On record: Address in United Kingdom

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How is this ranking worked out?

Each firm's position comes from its client reviews and its profile, blended into one score:

  • Rating, smoothed so a single five-star review cannot outrank a firm with hundreds of good ones
  • Review volume, with diminishing returns
  • Profile completeness: the details a buyer needs to judge the firm
  • Earned trust: verification and awards, as a small lift

No firm can pay for a position. Sponsored listings are labelled and shown apart from this list. How rankings work

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