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Top Cloud Consulting Companies in London

10 of 22 cloud consulting companies ranked on evidence in the Q4 2026 edition.

Between them, the 22 cloud consulting companies on this page cover cloud (13), information technology (10), financial services (8) and hospitality & leisure (7). 22 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

10 of 22 cloud consulting companies ranked on evidence held on 6 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 cloud consulting companies 10 ranked SMEs 9 ranked

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Fifosys Ltd
Consumer Products & Services · Non Profit · Government
Fifosys Ltd is a managed service provider based in London. It looks after IT for small and medium-sized organisations across many sectors, including care providers, and has done so…
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Why #1: Based in London, UK · Founded 2001 · ISO 27001, Cyber Essentials, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
Core
Hospitality & Leisure · Financial Services · Business Services
Core is an IT services company built around Microsoft technology.
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Why #2: Address in London · In business 30+ years · Microsoft partner, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
Infinity Group UK
Hospitality & Leisure · Information Technology · Financial Services
Infinity Group UK is an IT services company based near London Bridge.
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Why #3: Based in London, England · Founded 2001 · ISO 27001, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Core DataCloud
Consumer Products & Services · Information Technology · Cloud
Core DataCloud is a London IT company that protects business data through backup and disaster recovery.
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Why #4: Based in London, UK · Founded 1998, as stated on its own website, read 28 Sept 2026
Not yet on record: client reviews, vetting.
help4IT Ltd
Information Technology · Non Profit · Education
help4IT is an IT support company based in London that has served businesses since 2005.
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Why #5: Based in London, UK · Founded 2005, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
IT in Business
IT in Business is an IT services company in London with about twenty years of history.
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Why #6 (shared): Based in London, United Kingdom · In business 20+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
EC-MSP
Hospitality & Leisure · Financial Services · Business Services · Also in Aldgate and Kensington
EC-MSP is an IT support and managed services provider in central London.
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Why #6 (shared): Based in central London, UK · In business 20+ years, as stated on its own website, read 29 Sept 2026
Not yet on record: client reviews, vetting.
LDeX Group Ltd
Hospitality & Leisure · Information Technology · Financial Services · Also in Scotland and Manchester
LDeX Group Ltd provides data centre colocation and connectivity in the UK.
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Why #8: Based in London and Manchester, UK · In business 10+ years, as stated on its own website, read 5 Oct 2026
Not yet on record: client reviews, vetting.
Meritum Cloud Services
Web Development · Cloud · JavaScript · Also in United Kingdom
Meritum Cloud Services is a London IT consultancy that helps UK customers gain from moving to the cloud. It used to trade as EUC Consulting Ltd.
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Why #9 (shared): Based in London, with a service centre in Krakow · Microsoft partner, as stated on its own website, read 6 Oct 2026
Not yet on record: client reviews, vetting.
Dynamic Edge
Dynamic Edge was a UK IT support company that became part of Zenzero and adopted that brand on 31 March 2022.
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Why #9 (shared): Office in London · Microsoft partner, as stated on its own website, read 29 Sept 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
Extraordinary Managed Services
Hospitality & Leisure · Business Services · Non Profit
Extraordinary Managed Services is a UK hosting and cloud provider that trades online as EO Data Cloud.
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On record: ISO 27001, as stated on its own website, read 5 Oct 2026
BSI Group
Legal · .NET · Environmental
UK national standards body providing standards, ISO certification, product testing and training to organisations worldwide
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On record: Address in London
Convedo
Hospitality & Leisure · Information Technology · Financial Services · Also in Frankfurt
Convedo is an automation consultancy with offices in London, Frankfurt and Sydney.
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On record: Office in London
Datalytyx
Mobile App Development · Web Development · iOS App · Also in United Kingdom
Datalytyx is a data consultancy that provides Snowflake and Talend consulting, managed services and a DataOps platform.
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Devopsity
Information Technology · Web Services · Cloud
Devopsity is a DevOps and cloud consultancy that designs, tunes, scales and looks after cloud setups for its clients.
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On record: Based in London and Gdynia
esynergy
Consumer Products & Services · Information Technology · Financial Services
esynergy is a technology consultancy in the United Kingdom, with a London base.
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On record: Based in London, United Kingdom
floLIVE
Mobile App Development · Web Development · iOS App · Also in United Kingdom
floLIVE runs a global cellular network built only for IoT devices.
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On record: Address in London
Frontera Consulting
Cloud · Security
Frontera Consulting advises organisations on business processes and the technology behind them. It has merged with Accelalpha.
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On record: Based in London, UK
Grey Matter Ltd
Consumer Products & Services · Information Technology · Business Services
Grey Matter Ltd supplies cloud, software and technical services to developers, independent software vendors and technology-led firms.
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HN
H2o Networks
Information Technology · Business Services · Medical
H2o Networks provides outsourced IT support to small and medium-sized businesses in London.
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On record: Based in London, UK
hSo
Hospitality & Leisure · Financial Services · Non Profit
hSo is a business internet service provider and cloud consultancy based in London.
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On record: Based in London, United Kingdom
Lanware
Information Technology · Financial Services · Business Services
Lanware is an IT managed service provider in the City of London that works only with financial services businesses.
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On record: Based in London, UK

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Top Cloud Consulting Companies in London

Fifosys Ltd

Core

Infinity Group UK

Core DataCloud

help4IT Ltd

IT in Business

EC-MSP

LDeX Group Ltd

Meritum Cloud Services

Dynamic Edge

Extraordinary Managed Services

BSI Group

Convedo

Datalytyx

Devopsity

esynergy

floLIVE

Frontera Consulting

Grey Matter Ltd

H2o Networks

hSo

Lanware

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