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

Autologyx
Mobile App Development · Web Development · Web Design
autologyx digital operations platform enables enterprise businesses to automate complex mission-critical processes faster and more cost-effectively than existing automation…
Write a review
Safe Computing
Web Development · Web Design · iOS App
Safe Computing, now part of Access Group (www.theaccessgroup.com), is a vibrant Leicester-based software & services company.
Write a review
HooYu
Web Development · Web Design · UI/UX Design
At HooYu, we are specialists in building database check and identity confirmation products and our platforms are used by millions of users each month.
Write a review
Atech Support
Web Development · Web Design · iOS App
Atech Support is a leading Managed Services Provider and Azure Cloud Solution Provider, based in the UK.
Write a review
Causeway Technologies
Web Development · Web Design · iOS App
Causeway is the only global software provider that powers the design, build, operation and maintenance of the built environment.
Write a review
Inatech
Search Engine Optimization · UI/UX Design · React Native
Established in 2002, we are a global provider of intelligent cloud ETRM and fuel management software to the physical oil trading, bunkering and shipping industries.
Write a review
AIA Worldwide
Social Media Marketing · Web Development · Web Design
AIA Worldwide's industry-leading blend of imagination, invention, and ingenuity is now available at 51 locations across the globe.
Write a review
Kognitio
Web Development · Web Design · iOS App
Kognitio is a pioneer in the development of scale-out, in-memory software for big data analytics, providing an ultra-fast, high-concurrency SQL layer that allows modern BI and…
Write a review
Excis Ltd
Web Development · Web Design · iOS App
Welcome to Excis - one world, one team – solving your international IT needs!
Write a review
aap3
Web Development · Web Design · iOS App
Let’s start with the facts. aap3 is a successful technology services organization that provides complimentary, bespoke enterprise-grade technology services for the ‘channel’.
Write a review
FarmaTrust
Artificial Intelligence - AI · Web Development · Web Design
FarmaTrust is the most efficient global tracking system which provides security to both patients and the pharmaceutical industry to ensure counterfeit drugs do not enter the supply…
Write a review
nChain
Web Development · Web Design · UI/UX Design
nChain believes that Bitcoin SV (BSV) is the original Bitcoin and is the global public blockchain of the future.
Write a review
Tungsten Network
Web Development · Web Design · iOS App
At the heart of the global marketplace are the billions of transactions that happen every day.
Write a review
Aicura Solutions
Web Development · Web Design · iOS App
We deliver cutting edge software for banks. As a platform-led, industry-approved financial services technology provider our mission is to help banking clients deliver leading…
Write a review
Tryzens
Web Development · Web Design · Data Analytics
Since 2004, we've been trusted by retail’s biggest names to plan, implement and maintain eCommerce systems that drive business performance, and to develop multichannel retail…
Write a review
Margolis
Web Development · Web Design · iOS App
Print, scan, copy, fax or archive. Our unique approach to document management solutions enables your business to control and manage document workflow which guarantees increased…
Write a review
Limpio Office Solutions
Mobile App Development · Web Development · Web Design
Whether you need a single desktop printer delivered overnight or a full Managed Print Service designed and implemented, Limpio can deliver.
Write a review
Altodigital
Web Development · Web Design · iOS App
Established in 1975, Altodigital is one of the largest suppliers of office technology in the UK.
Write a review
Inflectiontech Limited
Web Development · Web Design · UI/UX Design
InflectionTech specialise in planning and managing the delivery of best in class data centre builds, white space build-outs, upgrades and migrations.
Write a review
IT Document Solutions Limited
Web Development · Web Design · iOS App
IT Document Solutions Ltd a trusted provider of managed print and document solutions to businesses and organizations across the UK, the company provides a structured and…
Write a review
Nine23 Ltd
Web Development · Web Design · iOS App
Nine23 uses today’s technology to create software products, integrate systems and deliver IT services. Nine23 exists to allow the front line user to use technology.
Write a review
Fortis Hosting
Web Development · Web Design · iOS App
Fortis Hosting has arisen from over 30 years of combined experience from the Directors within the technology arena.
Write a review
Nexus Fusion Ltd
Web Development · Web Design · iOS App
Our ‘out of the box’ thinking and ‘anything is possible’ beliefs mean we can deliver projects that others may not have the confidence or experience to take on.
Write a review
Shapecast
Web Development · Software Development · Cloud
We are Shapecast, providers of unique data-driven analytics solutions for business change At Shapecast, we believe that aligning strategy, operating model and digital IT…
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

Autologyx

Safe Computing

HooYu

Atech Support

Causeway Technologies

Inatech

AIA Worldwide

Kognitio

Excis Ltd

aap3

FarmaTrust

nChain

Tungsten Network

Aicura Solutions

Tryzens

Margolis

Limpio Office Solutions

Altodigital

Inflectiontech Limited

IT Document Solutions Limited

Nine23 Ltd

Fortis Hosting

Nexus Fusion Ltd

Shapecast

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