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Top IT Services Companies in the UK

872 IT service providers ranked by rating, review volume and listing quality.

IT services is the broadest label in this directory and covers, at different firms, entirely different work: managed infrastructure and helpdesk, project-based software delivery, cloud migration, security, procurement, or some combination sold as one relationship. Two providers under this heading may have almost nothing in common.

Because the label is wide, the useful filter is the engagement model rather than the capability list. Is this a retained relationship with a service-level agreement and a monthly cost, or project work quoted per piece? Who is accountable when something breaks at two in the morning, and what does the contract actually promise? A provider that answers those precisely is describing a real service; one that answers in capabilities is describing a brochure.

Want your company here?

Between them, the 600 best-ranked of these 872 IT service providers cover web development (569), web design (556), WordPress (459) and eCommerce (440). 597 of them have written a profile you can read before you get in touch.

TrustList ranks more than 850 IT services companies in the UK, ordered on client reviews and profile quality, never on payment. At the top right now: NetMonkeys Ltd, Pen Test Partners and Innovation Group Limited.

What to check before you shortlist a IT services company

  • Service levels and response times, in the contract
  • Security certifications that match your obligations
  • What is covered on site and what is remote
  • Exit terms: how you get your data and credentials back if you leave
Filter by fitbudget, engagement, size and more

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

  1. XL

    Xoomworks Ltd

    Web Development · Web Design · Business Intelligence

    Xoomworks is a consulting and technology company that specializes in Procurement Technology, Digital Innovation, and complex bespoke software solutions development.

    Write a review
  2. R

    RiskEye

    Social Media Marketing · Web Development · Web Design

    A complete solution for online harm, we prevent, protect and fix to keep your business safe online.

    Write a review
  3. F

    Fleetondemand

    Web Development · Web Design · iOS App

    Fleetondemand is an innovative multi-platform technology company that connects thousands of business people to vehicle rental, car leasing, and business travel services globally.

    Write a review
  4. 2T

    2i Testing

    Web Development · Web Design · iOS App

    2i specializes in delivering software testing services for organizations ranging in size from emerging SMEs in the public sector to international finance houses.

    Write a review
  5. CI

    CoachHub.io

    E-Commerce Development · IT Solution · IT Outsourcing

    Coachhub is the “mobile coaching cloud” and enables personalized coaching for employees at all career levels.

    Write a review
  6. N

    NPTV

    Social Media Marketing · Media & Entertainment · Web Development

    NPTV is a technology startup established in 2013. Headquartered in London, it maintains a large R&D center in Moscow.

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  7. S

    Silktide

    Social Media Marketing · Web Development · Web Design

    Silktide is a small, successful company that makes software to test websites. We’re also a pretty awesome place to work.

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  8. A

    Arm

    Web Development · Web Design · iOS App

    Arm technology is at the heart of a computing and connectivity revolution that is transforming the way people live and businesses operate.

    Write a review
  9. QC

    Quadrature Capital

    Artificial Intelligence - AI · Web Development · Web Design

    Founded in 2010, we’re a small tech business run by programmers.

    Write a review
  10. Q

    QuadratureTech

    Web Development · Web Design · iOS App

    20+ years of embedded software, bare-metal firmware, and hardware design and development skills. Design the whole path from concept to finished product.

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  11. DC

    Dolphin Computer Access

    Web Development · Web Design · iOS App

    Millions of blind, partially sighted and dyslexic people around the World choose Dolphin accessible technology for their personal and professional use.

    Write a review
  12. SW

    Sequence.work

    Artificial Intelligence - AI · Web Development · Web Design

    Data annotation, tagging, and classification outsourcing. Made for data science teams. Sequence is a straight-forward outsourcing service for all your data labeling needs.

    Write a review
  13. RS

    Red Sequence

    Mobile App Development · Web Development · Web Design

    Red Sequence are specialists in Azure, .NET, full-stack JavaScript and associated Web technologies.

    Write a review
  14. IL

    Inspiretec Ltd

    Web Development · Web Design · iOS App

    Inspiretec is formed of travel technology company Comtec, multichannel e-commerce technology partner Eysys, creative digital agency Sequence, Finance & HR company Clarius and…

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  15. I

    Innovantage

    Web Development · Web Design · iOS App

    Innovantage is the UK’s leading provider of Labour Market Analytics data and real-time lead generation for recruiters.

    Write a review
  16. KL

    KoolZone Ltd

    Software Development · IT Solution · Tracking Software

    From keeping food and drinks at the right temperature to monitoring cryogenic freezers at minus 196°C and commercial ovens at over 300°C, as well as the careful storage of…

    Write a review
  17. EI

    eezylife Inc.

    Web Development · Web Design · iOS App

    eezy is a proactive life navigator app, dedicated to maximizing your life by bringing you personalized solutions based on your character, mood, and preferences – powered by…

    Write a review
  18. EA

    EK Automation Systems Ltd

    Web Development · Web Design · Business Intelligence

    Designing and implementing control system solutions for industrial machines. Utilizing a wide range of SCADA and PLC systems from various manufacturers.

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  19. FS

    Fifth Step Limited

    Web Development · Web Design · IT Networking

    Fifth Step provides services to executive and senior management to enhance their business’ IT capabilities, governance, and processes, as well as reducing risks from organizational…

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  20. CI

    Capita Integrated Business Solutions

    Web Development · Web Design · Cloud

    Capita Integrated Business Solutions, part of Capita plc. provides world-class integrated business software solutions to service-centric organizations.

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  21. T

    Trintech

    Web Development · Web Design · iOS App

    At Trintech, we pride ourselves on providing enterprise-class financial solutions for the Record to Report process to organizations committed to transforming their financial…

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  22. WL

    WallStreetDocs Ltd

    Web Development · Software Development · Frontend

    WallStreetdocs is the leading SaaS-based provider of document-centric automation solutions for structured products.

    Write a review
  23. B

    Brandbassador

    Social Media Marketing · Search Engine Optimization · Digital Marketing

    Created by the founders of Onepiece, the pioneers of the onesie trend, Brandbassador lets brands harness the power of their ambassadors - real customers, fans and followers.

    Write a review
  24. NS

    Network Sunday

    Social Media Marketing · Digital Marketing · DataBase

    Network Sunday helps B2B companies grow. We deliver global marketing solutions for clients targeting the corporate and enterprise sectors or the larger small and medium-sized (SME)…

    Write a review

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  • Marked Sponsored, and it never changes the order
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How many IT services companies are there in the UK?

872 companies on TrustList offer IT services and are based in the UK. That makes the UK the largest IT services market we rank.

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

What else do firms in the UK offer?

We also rank web development (1,531), web design (1,385) and software development (443) in the UK.

IT Services in other countries

Other services in the UK

Same subject

More it service providers rankings

Every other way we rank it service providers — by what they do and where they are.

All 284 rankings
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