Companies · category

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

Kalibrate
Custom Software Development · Web Development · Web Design
Kalibrate’s decision-making software empowers fuel and convenience retailers across the globe with the market intelligence, micro-local data, and precision pricing and planning…
Write a review
Tech Nation
Web Development · Web Design · UI/UX Design
We believe the UK is the best place in the world to start and grow a digital business Tech Nation empowers ambitious tech entrepreneurs to scale faster through growth programmes,…
Write a review
Systems Technology
Web Development · Web Design · iOS App
Systems Technology is an award-winning organization providing premium devices, managed print services, and bespoke technology solutions - with a twist.
Write a review
IMImobile
Web Development · Web Design · iOS App
IMImobile is a UK based, global cloud communications software and solutions provider that enables companies to use mobile and digital technologies to improve and automate customer…
Write a review
Pinewood Technologies
Web Development · Web Design · Software Development
Pinewood Technologies provides dealer management software and support services to motor retailers and fleet providers in the UK and internationally.
Write a review
GCI
Web Development · Web Design · iOS App
Multi-award-winning GCI is one of the UK’s leading ICT Service Providers, with offices across the UK.
Write a review
Serco
Web Development · Web Design · UI/UX Design
Serco is one of the world’s largest providers of public services to Governments, employing over 50,000 people in over 20 countries.
Write a review
Quality Sales Leads Limited
Web Development · Web Design · iOS App
Quality Sales Leads Limited (QSL) is a boutique Inside Sales Consultancy that specializes in outbound B2B Lead generation, B2B Sales appointment making & outsourced telesales…
Write a review
Gibbs Hybrid
Web Development · Web Design · iOS App
Gibbs Hybrid is an international IT and Business Services firm providing a "one-stop-shop" helping customers with Project Consulting, Talent and Outsourced solutions, whilst…
Write a review
cool Data Centres Limited
Web Development · Web Design · UI/UX Design
Established in 2017, coolDC® – cool Data Centres Limited – offers a step-change in how data centres are designed, built, and operate.
Write a review
Simply Hosting & Servers
Web Development · Web Design · iOS App
With 15 years industry experience, we’re confident we can make even the most complex IT - simple.Our services range from VPS and public cloud to outsourcing your entire IT…
Write a review
thinkWhere
Web Development · Web Design · WordPress
thinkWhere use leading-edge cloud, Open Source, and GIS technologies, to develop innovative software and solutions, backed by a wide range of GIS implementation, consultancy,…
Write a review
Miigen (UK) Limited
Web Development · Web Design · iOS App
The story of your life in your words and voice saved as a digital time capsule. Be part of a global movement collecting the life stories of our generation.
Write a review
Plexal
Web Development · Web Design · iOS App
Designed and built in the heart of Olympic east London, Plexal is the innovation centre and coworking space for people with big ideas.
Write a review
SCC
Web Development · Web Design · iOS App
People do business. We make it work. We enable people to do business by planning, supplying, integrating and managing their IT.
Write a review
Ashton Court Group Ltd
Web Development · Web Design · WordPress
Ashton Court Group Ltd is an experienced client-focused information systems consultancy providing on-premise, cloud, and hybrid solutions to the public, private, and not-for-profit…
Write a review
Britecloud
Web Development · Web Design · iOS App
Britecloud is a deeply technical Value Added Distributor - the UK based, working globally.
Write a review
iComply365
Web Development · Web Design · iOS App
Compliant Systems, trading as iComply365 is at its core a RegTech organization.
Write a review
Landmark Information
Web Development · Web Design · WordPress
Landmark Information, part of the Daily Mail General Trust, is the UK’s leading provider of land and property search information, including digital mapping, environmental risk…
Write a review
Qubic Group plc
Web Development · Web Design · UI/UX Design
Qubic was conceived in 1994 uniquely, as a voice and data systems integrator delivering the benefits of converged communications to commercial organizations and public sector…
Write a review
Datanet
Web Development · Web Design · WordPress
With 20+ years of experience in hosting and connectivity and having won some 17 award nominations and awards, Datanet is an established leader in providing business-class cloud…
Write a review
Konvergent Ltd
Web Development · Web Design · UI/UX Design
Konvergent’s dynamic service model has been specifically developed to support Strategy and Architecture leaders.
Write a review
Exertis Hammer
Web Development · Web Design · iOS App
Exertis Hammer is an award-winning value-add distributor with more than 25 years’ experience in enterprise data storage, server, and networking solutions.
Write a review
Aditinet UK
Web Development · Web Design · UI/UX Design
Aditinet UK is an independent professional service partner working with the channel and specialising in advanced solutions for Networking, Security, Mobility and Data Centre design…
Write a review

For vendors

Want to see your company here?

The order is earned: ratings, verified reviews and listing quality decide it, and nobody can pay to move up. There are two ways to stand out, and each one says what it is.

Not on TrustList yet? Add your company or claim its listing, free.

Get vetted

Free

We check your registration, your website and your clients
Approved listings show the Verified badge here and on their profile
It earns a rank number and counts towards the TrustList Score; renewed yearly

Apply for vetting How vetting works

Sponsor the IT Services ranking

Paid · always labelled

A Sponsored card above the IT Services ranked list
Marked Sponsored, and it never changes the order
Booked by the month; cancel any time

Book a spot See prices

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.

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

Articles

More categories

Jump to another ranked category.

All categories

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Services Companies in the UK

Kalibrate

Tech Nation

Systems Technology

IMImobile

Pinewood Technologies

GCI

Serco

Quality Sales Leads Limited

Gibbs Hybrid

cool Data Centres Limited

Simply Hosting & Servers

thinkWhere

Miigen (UK) Limited

Plexal

SCC

Ashton Court Group Ltd

Britecloud

iComply365

Landmark Information

Qubic Group plc

Datanet

Konvergent Ltd

Exertis Hammer

Aditinet UK

Want to see your company here?

Get vetted

Sponsor the IT Services ranking

How many IT services companies are there in the UK?

How is this ranking worked out?

What else do firms in the UK offer?

IT Services in other countries

Other services in the UK

More it service providers rankings

Related reading

Startup funding in the UK: the 2026 guide for founders

What makes a token expensive, and why it is not the model's size

Small models are winning the argument and losing the evidence

More categories

More on TrustList