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.

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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

Twin Systems Limited
Web Development · Web Design · iOS App
Twin Technology managed services are designed to add value, deliver innovation and above all ensure our services are professional and add value every day. We focus on 4 key areas.
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Veridium
Web Development · Web Design · UI/UX Design
Veridium's software can reduce or eliminate identity as a major attack vector, by replacing the vulnerable password with biometric authentication.
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Natilik
Web Development · Web Design · UI/UX Design
Natilik is a specialist global IT & Communications provider, head quartered in London with offices in New York, Sydney and Singapore.
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Ovate
Web Development · Web Design · iOS App
They say life is a journey and everyone plays their part. Well at Ovate; we’re here every step of the way with our range of C-Level advisory assessments, testing service, agile…
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Raidiam
Mobile App Development · Web Development · Web Design
Independent advice, delivering on the potential of IAM to improve business outcomes.
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Kinseed
Mobile App Development · Web Development · Web Design
Every organization is different. That’s what makes your business special.
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Fiskl
Web Development · Web Design · iOS App
Fiskl is a mobile-first small business finance and productivity software platform (mobile SaaS) aimed at giving SMEs and their employees the freedom to manage their business on the…
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TBSCG
Web Development · Web Design · UI/UX Design
TBSCG has more than 16 years of enterprise enablement experience, helping our global customers implement and maintain complex enterprise solutions.
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NTT Data UK
Mobile App Development · Web Development · Web Design
NTT DATA is a trusted global innovator, employing over 100,000 people in over 50 countries around the world.
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Netcall
Mobile App Development · Web Development · Web Design
Transform your customer engagement. Work smarter, gain competitive advantage, lower operating costs and hit your targets.
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Receipt Bank
Web Development · Web Design · iOS App
Receipt Bank was founded in 2010 to help the world work smarter.
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Onkho
Web Development · Web Design · iOS App
Integrated workflow, CRM and email for accountants and bookkeepers. Practice management is the art of running a successful accounting business.
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unifi.id
Web Development · Web Design · iOS App
Turn customer location and identity into a smarter business model.
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Contino
Web Development · Web Design · iOS App
Contino is a global Enterprise DevOps, Data and Cloud Transformation Consultancy.
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CineGo
Web Development · Web Design · iOS App
CineGo streamlines the process of a trip to the Cinema with its subscription service along with an Uber-like, algorithm that intelligently displays the location, times and films…
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Jola Cloud Solutions Ltd
Web Development · Web Design · iOS App
Jola is an award-winning, channel-only supplier of business communications, specializing in mobile data SIMs.
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nubeGO
Web Development · Web Design · iOS App
NubeGO wants to ensure that the speed and scalability of the cloud are available and ever-present in organizations across the globe.
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Cognito iQ
Web Development · Web Design · UI/UX Design
Cognito iQ is a combination of intelligent mobile workforce management software, best-practice processes and proven techniques.
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QuantumBlack
Software Development · Data Science · Cloud
QuantumBlack, a McKinsey Company, helps companies use data to drive decisions.
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Berkeley Square IT
Web Development · Web Design · iOS App
Berkeley Square IT specializes in permanent and contract staff for both national and international clients, for a variety of roles across a broad range of industry sectors.
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GlobalData Plc
Web Development · Web Design · UI/UX Design
The world is changing exponentially, resulting in unprecedented opportunities and challenges that individual organizations and entire industries need to understand and navigate.
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Testhouse Ltd
Web Development · Web Design · iOS App
Testhouse is a thought and market leader in Software Quality Management, Application Lifecycle Management (ALM) and DevOps providing on-site, on-shore and off-shore test services…
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Experian
Social Media Marketing · Web Development · Web Design · Also in United States of America
Experian unlocks the power of data to create opportunities for consumers, businesses, and society.
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Open Data Institute
Mobile App Development · Web Development · Web Design
The ODI was co-founded in 2012 by the inventor of the web Sir Tim Berners-Lee and Artificial Intelligence expert Sir Nigel Shadbolt to advocate for the innovative use of open data…
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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.

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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.

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

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

Top IT Services Companies in the UK

Twin Systems Limited

Veridium

Natilik

Ovate

Raidiam

Kinseed

Fiskl

TBSCG

NTT Data UK

Netcall

Receipt Bank

Onkho

unifi.id

Contino

CineGo

Jola Cloud Solutions Ltd

nubeGO

Cognito iQ

QuantumBlack

Berkeley Square IT

GlobalData Plc

Testhouse Ltd

Experian

Open Data Institute

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

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