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

Markit
Web Development · Web Design · UI/UX Design
IHS Markit is a global leader in information, analytics and solutions for the major industries and markets that drive economies worldwide.
Write a review
Level39
Web Development · Web Design · UI/UX Design
Level39 is the world's most connected tech community, with over 200 tech startups and scale-ups based onsite.
Write a review
Mindscape Group Limited
Web Development · Web Design · iOS App
We are a collective of digital tech industry leaders who have built successful teams.
Write a review
Kluster
Web Development · Web Design · iOS App
Our mission: Turning your CRM data into actionable insights to grow your sales with a smarter sales analytics and forecasting platform you can trust.
Write a review
Acturis Limited
Web Development · Web Design · WordPress
Acturis is one of the UK’s highest-rated and fastest-growing technology companies, dedicated to delivering awesome solutions for our clients, helping them streamline their business…
Write a review
Final Stage
Web Development · Web Design · iOS App
We’re reducing the mass talent wastage in the internal hiring-space and benefiting both companies and candidates in doing so.
Write a review
U Squared
Web Development · Web Design · iOS App
Founded in Jan 2017, as a spin-off from UCL research, USQRD applies AI to solve business problems.
Write a review
Testing Circle
Web Development · Web Design · iOS App
Testing Circle is a leading Software Testing Services provider to leading Finance, Telco, Government, Retail, Gaming, Media and FTSE 100 clients.
Write a review
Sparta Global
Web Development · Web Design · iOS App
Sparta Global is a provider of technology and business services to public and private sector organisations, including the finance, insurance, media, retail, legal and telco…
Write a review
EMIS Health
Web Development · Web Design · iOS App
We’re the UK leader in clinical IT systems for joined-up patient care.
Write a review
Content and Code
Web Development · Web Design · UI/UX Design
Content and Code solves business challenges with creative IT solutions.
Write a review
Torsion Information Security
Web Development · Web Design · UI/UX Design
TORSION delivers Secure Data Access Control, invisibly integrated with your business and IT.
Write a review
Joseph Harry LTD
Web Development · Web Design · iOS App
Joseph Harry Limited is a recruitment and headhunting company that specializes in the provision of the contract and permanent IT staff to the financial sector.
Write a review
Codurance
Mobile App Development · Web Development · Web Design
Software is our passion. We are software craftspeople. We build well-crafted software for our customers, we help developers to get better at their craft through training, coaching…
Write a review
Scancom Distribution Limited
Web Development · Web Design · iOS App
Scancom has a long tradition of leadership and innovation in the Airtime arena.
Write a review
Bunting
Web Development · Web Design · iOS App
An 'About Us' page that's actually… about us. It's hard to describe our personality in words.
Write a review
Endless Gain
Web Development · Web Design · UI/UX Design
Optimising online human behaviour. We create, optimise and personalise customer experiences to increase revenue for our clients.
Write a review
The Dots
Web Development · Web Design · iOS App
Akin to a beautifully designed, content-rich and more creative version of LinkedIn, The Dots is an online community of creative professionals, designed to connect creatives with…
Write a review
Segmentify
Web Development · Web Design · iOS App
If you’re looking for a personalization solution to increase sales, boost customer engagement and provide better insights into your customers than other solutions then look no…
Write a review
ConnectNow
Web Development · Web Design · WordPress
A game-changing Web Chat system, designed around Support and Service.
Write a review
Inhealthcare
Web Development · Web Design · UI/UX Design
Inhealthcare is a digital health and telehealth provider working with NHS organizations to digitize care.
Write a review
UnderPinned
Web Development · Web Design
UnderPinned is a platform that supports freelancers from all industries in developing their careers, while also keeping them plugged into urban lifestyle and culture.
Write a review
Virtalis
Web Development · Web Design · iOS App
Virtalis connect multiple datasets from multiple environments (CAD, PLM, MES) so that colleagues, partners, and suppliers can collaborate on complex projects using a common visual…
Write a review
Fifty
Web Development · Web Design · iOS App
It's an old-fashioned approach to a cutting-edge discipline. A lot of hardware, machine learning, and AI underpins our analysis, but it's delivered by people, not machines.
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

Markit

Level39

Mindscape Group Limited

Kluster

Acturis Limited

Final Stage

U Squared

Testing Circle

Sparta Global

EMIS Health

Content and Code

Torsion Information Security

Joseph Harry LTD

Codurance

Scancom Distribution Limited

Bunting

Endless Gain

The Dots

Segmentify

ConnectNow

Inhealthcare

UnderPinned

Virtalis

Fifty

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

Helpfeel says Gyazo breach exposed 23.62 million user records and screenshot text

Cisco ISE flaw CVE-2026-76460 is being exploited, scores 10 and has no workaround

More categories

More on TrustList