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Top IT Service Providers for Cloud in the UK

16 of 67 IT service providers ranked on evidence in the Q4 2026 edition.

Between them, the 67 best-ranked of these 68 IT service providers cover web development (65), web design (62), IT services (54) and android (41). They also list work in Ireland and United States of America. 67 of them have written a profile you can read before you get in touch.

We list more than 200 IT service providers in the UK listed for cloud services. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Root Info Solutions, Nublue and Black Pepper Software.

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TrustList ranking

Q4 2026 edition

16 of 67 IT service providers ranked on evidence held on 12 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

How this is ranked About this edition

All IT service providers 16 ranked SMEs 16 ranked

Filter by fitbudget, engagement, size and more

Pulsant
Mobile App Development · Web Development · Web Design
Pulsant runs a network of data centres across the UK and sells colocation, hosted infrastructure and connectivity from them.
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Why #1: Address in United Kingdom · Founded 1995 · ISO 27001, professional accreditation, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Wavex Technology Ltd
Web Development · Web Design · IT Services
Wavex Technology Ltd is an independent managed IT services company founded in 1998.
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Why #2: Based in London · Founded 1998 · ISO 27001, Cyber Essentials, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
CI
Codec Ireland
Web Development · Web Design · IT Services · Also in Ireland
Irish IT consultancy delivering Microsoft-based digital projects for public and private sector organisations in Ireland and the UK
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Why #3: Based in Galway, Cork, Belfast, London, Cologne and Sulwaki · Founded 1985 · Microsoft partner · Team of 240+, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
A
Arkphire
Web Development · Web Design · IT Services · Also in Ireland
IT infrastructure supplier and managed services provider for multinational companies across Europe, the Middle East, Africa and Asia-Pacific
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Why #4: Based in Dublin and London, with others in Asia, South America and Israel · In business 40+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Proact IT Group AB
Web Development · Web Design · IT Services · Also in Sweden
Proact IT Group AB is a European IT services group that designs, runs and secures data centre and cloud environments.
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Why #5: Office in United Kingdom · Founded 1994, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
PT
Pulsion Technology
Web Development · Web Design · IT Services
Pulsion Technology develops software for public and private sector clients, working from Scotland and serving customers across the UK.
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Why #6: Based in Scotland, UK · In business 30+ years, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Company85
Web Development · Web Design · IT Services
Company85 is a London-headquartered independent IT services and consulting firm, also branded c85. It focuses on IT transformation and information protection.
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Why #7: Based in London, UK · In business 25+ years, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
zsah
Web Development · Web Design · IT Services
zsah is a managed technology services company based in central London.
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Why #8: Based in central London · Founded 2002, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
E
Ekco
Web Development · Web Design · IT Services · Also in Ireland
Ekco is an Irish-owned provider of managed IT, cloud and data services.
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Why #9 (shared): Office in United Kingdom · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Root Info Solutions
Mobile App Development · Web Development · Web Design
Root Info Solutions is a digital services firm covering development, testing, integration and maintenance.
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Why #9 (shared): Office in United Kingdom · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
GCI
Web Development · Web Design · IT Services
UK ICT service provider offering unified communications, cloud, security and network services with several ISO certifications
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Why #11: Based in UK, with offices across the country · ISO 9001, ISO 27001, professional accreditation, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Debut Infotech Pvt. Ltd.
Mobile App Development · Web Development · Web Design · Also in India
Debut Infotech has built apps and digital products since 2011. It started with a development centre in Mohali, India, and now lists offices in the US, UK, Canada and India.
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Why #12: Based in Mohali, India, with offices in the US, UK and Canada · Founded 2011, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Rahi Systems
Mobile App Development · Web Development · Web Design · Also in United States of America
Rahi Systems supplies and supports technology infrastructure for large organisations.
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Why #13: Office in United Kingdom · Founded 2012, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Active8 Managed Technologies
Web Development · Web Design · IT Services
Active8 Managed Technologies is a UK provider of three business technology services: managed print, IT support and hosted telephony.
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Why #14: Address in United Kingdom · Founded 2013, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Core Value
Web Development · Web Design · IT Services · Also in United States of America
Core Value, written CoreValue in its own material, is a US-based software and technology services company.
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Why #15: Address in United Kingdom · Microsoft partner, Salesforce partner, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
TL
TEKENABLE Ltd
Mobile App Development · Web Development · Web Design · Also in Ireland
TEKenable is an Irish technology company that helps organisations modernise their systems.
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Why #16: Office in United Kingdom · Microsoft partner, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
Centrality
Web Development · Web Design · IT Services
Centrality is an IT services company that describes itself as cloud-first.
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On record: Founded 1996 · Microsoft partner, as stated on its own website, read 6 Oct 2026
Digital Craftsmen
Web Development · Web Design · IT Services
Digital Craftsmen is a managed cloud hosting and cyber security company.
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On record: In business 20+ years · ISO 27001, as stated on its own website, read 5 Oct 2026
Q
Quadratix
Microsoft Dynamics 365 · Web Development · Web Design
Quadratix is an IT services company founded in 2008. It looks after the IT of businesses in and around Bath, Bristol and Cardiff, and holds ISO 27001 certification.
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On record: Founded 2008 · ISO 27001, as stated on its own website, read 6 Oct 2026
Atlas Cloud
Web Development · Web Design · IT Services
Atlas Cloud is a UK managed IT provider that began in 2010 with hosted desktop and cloud services.
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On record: Founded 2010 · Cyber Essentials, as stated on its own website, read 5 Oct 2026
cloudThing
Mobile App Development · Web Development · Web Design
cloudThing is a technology consultancy set up in 2012 to help businesses make use of cloud technology.
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On record: Founded 2012 · Microsoft partner, as stated on its own website, read 5 Oct 2026
MTI
Web Development · Web Design · IT Services
MTI is an IT solutions and services business that focuses on data and cyber security, data centre modernisation and managed services.
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On record: In business 35+ years, as stated on its own website, read 5 Oct 2026
intY, a ScanSource Company
Web Development · Web Design · IT Services
Cloud services distributor with a self-service portal that lets IT partners order and manage cloud products for customers
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On record: Founded 1997, as stated on its own website, read 6 Oct 2026
Foehn
Web Development · Web Design · IT Services
Foehn is a cloud communications provider, now called Kerv Experience, with a history of IP telephony and contact centre work.
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On record: Founded 2000, as stated on its own website, read 6 Oct 2026

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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the UK are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: USA (340) · Canada (146) · India (115) · Germany (115).

Other specialisms in the UK: UI/UX design (941) · e-commerce (854) · Android app development (812) · iOS app development (800) · WordPress (752).

Every IT service provider in the UK: the full list.

Every category in the UK: the UK country page.

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

Top IT Service Providers for Cloud in the UK

Pulsant

Wavex Technology Ltd

Codec Ireland

Arkphire

Proact IT Group AB

Pulsion Technology

Company85

zsah

Ekco

Root Info Solutions

GCI

Debut Infotech Pvt. Ltd.

Rahi Systems

Active8 Managed Technologies

Core Value

TEKENABLE Ltd

Centrality

Digital Craftsmen

Quadratix

Atlas Cloud

cloudThing

MTI

intY, a ScanSource Company

Foehn