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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. 383 logo

    Search Engine Optimization · Web Development · Web Design

    383 is a digital studio that designs and builds customer experiences for big companies.

  3. 56 Degrees logo

    Mobile App Development · Web Development · Web Design

    56 Degrees is a London web development firm. It concentrates on three kinds of work: building new sites, migrating existing ones and redeveloping them, from microsites to…

    On record: Based in London

  4. 6B logo

    Social Media Marketing · Web Development · Web Design

    6B is a digital agency focused on digital transformation. It designs and builds websites, mobile apps and bespoke applications, and also runs marketing campaigns for its clients.

  5. AM

    Artificial Intelligence - AI · Web Development · Web Design

    ABC Managed Services, also written ABC Managed Solutions, is an independent UK company that supplies and supports technology for workplaces.

  6. Access logo

    Web Development · Web Design · UI/UX Design · Also in Manchester

    Access is a digital development and marketing communications agency that blends audience insight, creative work and technology.

  7. Aditinet UK logo

    Web Development · Web Design · UI/UX Design

    Aditinet UK is an independent professional services business that works with the IT channel.

  8. ADV logo

    Mobile App Development · Web Development · UI/UX Design

    Web engineering company covering website development, search optimisation, omnichannel analytics and online customer service

  9. Advisority logo

    Software Development · E-Commerce Development · Software Testing · Also in Romania

    Advisority is a European business and technology service provider headquartered in London.

    On record: Based in London

  10. Agency,Mai? logo

    Web Design · eCommerce · WordPress

    Agency,Mai? is a small digital design and development team serving clients in the UK and the United States.

  11. A

    Web Development · Web Design · IT Services

    Agilisys is a UK technology partner for the public sector, with a focus on local government.

    On record: Address in United Kingdom

  12. Agnian logo

    Custom Software Development · Web Development · Web Design

    Agnian is a digital product agency working from London in the UK and Yerevan in Armenia.

    On record: Based in London, UK, and Yerevan, Armenia

  13. AIA Worldwide logo

    Social Media Marketing · Web Development · Web Design

    AIA Worldwide is a creative and digital agency network that says it now has 51 locations around the world.

  14. Aicura Solutions logo

    Web Development · Web Design · UI/UX Design

    Aicura Solutions is a financial services technology provider with a base in London and a team working remotely around the world.

    On record: Based in London

  15. Aiimi logo

    Web Development · Web Design · UI/UX Design

    Aiimi sells a platform that finds, classifies and governs company data so that it is secure, compliant and usable for AI.

  16. Air IT logo

    Web Development · Web Design · IT Services

    Air IT is a managed service provider that supplies IT, communications and security support to organisations.

    On record: Based in The Midlands, United Kingdom

  17. Airangel logo

    Mobile App Development · Web Development · Web Design

    Airangel supplies cloud-first WiFi software that lets guests get online with little effort while giving the venue control over the network.

  18. Ajenta logo

    Mobile App Development · Web Development · iOS App

    Ajenta is a technology company that creates communication and collaboration tools. It specialises in virtual learning, video telehealth and custom collaboration environments.

  19. Alchemy Technology Services logo

    Web Development · Web Design · UI/UX Design

    Alchemy Technology Services is an insurance software consultancy based in Derry City, Northern Ireland.

    On record: Based in Derry City, Northern Ireland

  20. alphaWerk logo

    Web Development · Web Design · Software Development

    alphaWerk is a software development firm that builds applications covering the processes of a business.

  21. Alscient logo

    Web Development · Web Design · CRM Development

    Alscient is an IT consultancy and Salesforce and AWS partner. It helps organisations pick and implement technology, from IT strategy through to CRM and system integration.

  22. AmazeRealise logo

    Web Development · Web Design · UI/UX Design

    AmazeRealise is a digital agency that designs and builds customer and employee experiences, starting from what people need and then applying technology.

  23. Anatwine logo

    Web Development · Web Design · UI/UX Design

    Anatwine is a digital hub that helps fashion brands sell through several online channels.

  24. ANS Group logo

    Web Development · Web Design · UI/UX Design

    ANS is a UK provider of cloud, security, connectivity and digital transformation services.

    On record: Based in United Kingdom

  25. APD Communications logo

    Web Development · Web Design · UI/UX Design

    APD Communications develops software and infrastructure for emergency services. Its systems help control rooms handle calls and coordinate responses in 999 situations.

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The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.

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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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