Company lists · Data refreshed September 2026

Top 25 Cloud IT consulting firms based in London, United Kingdom

Name: Cloud IT consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 728 companies tracked

RevenueBase identified 728 cloud IT consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 36,406 professional contacts across them, including 3,731 with verified work emails. London is the largest hub.

This list covers cloud IT consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

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36,406Contacts tracked

3,731Verified emails

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The 25 largest cloud IT consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 728 cloud IT consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cloud IT consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Computer Futures	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	2,673 contacts →
	Indirect evidence “Building tomorrow’s tech landscape together Computer Futures is a Technology specialist, part of SThree, the global STEM workforce consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
2	K2 Partnering Solutions	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	1,417 contacts →
	Partial evidence “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Source: RevenueBase Database · checked Sep 21, 2026
3	KERV	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	501-1,000	742 contacts →
	Indirect evidence “Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Source: RevenueBase Database · checked Sep 21, 2026
4	Kovaion Consulting	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	353 contacts →
	Indirect evidence “Kovaion is a global AI-powered solutions and innovation company focused on Oracle technologies, enterprise applications, intelligent automation, and digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
5	KOCHO	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	295 contacts →
	Indirect evidence “At Kocho, we believe greatness lies in everyone.” Source: RevenueBase Database · checked Sep 21, 2026
6	Transparity	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	284 contacts →
	Indirect evidence “We are the UK’s most accredited, pureplay, Microsoft partner.” Source: RevenueBase Database · checked Sep 21, 2026
7	Datatonic	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	284 contacts →
	Partial evidence “The leading cloud data + AI consultancy, driving business impact for the world's most ambitious businesses, through cutting-edge cloud technologies.” Source: RevenueBase Database · checked Sep 21, 2026
8	Vertex Agility	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	255 contacts →
	Partial evidence “Vertex Agility is your next Global Digital Consultancy, providing deep expertise in Cloud, Data, and Software to the biggest brands in the world and the most disruptive scale-ups.” Source: RevenueBase Database · checked Sep 21, 2026
9	Absolutelabs	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	192 contacts →
	Partial evidence “AbsoluteLabs is a Salesforce Summit Partner and partner of Microsoft Azure, Amazon Web Services, and Google Cloud Platform.” Source: RevenueBase Database · checked Sep 21, 2026
10	Opinov8	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	154 contacts →
	Indirect evidence “Winner of the Best AI Company Award by The Netty Awards · Headquartered in London, powered by a worldwide team of engineers across Europe, Egypt, and the Americas.” Source: RevenueBase Database · checked Sep 21, 2026
11	Bedford Consulting	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	117 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
12	Amber Labs	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	111 contacts →
	Indirect evidence “Trusted by some of the UK's most important organisations, Amber Labs delivers digital transformation where assurance matters just as much as pace.” Source: RevenueBase Database · checked Sep 21, 2026
13	DOT Collective	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	93 contacts →
	Partial evidence “We are data and cloud practitioners, and we create the springboard for momentous organisational leaps.” Source: RevenueBase Database · checked Sep 21, 2026
14	Sysgroup	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	89 contacts →
	Strong evidence “SysGroup is the services leader for realising AI transformation, as an award-winning managed IT services, cloud hosting, and IT consultancy provider.” Source: RevenueBase Database · checked Sep 21, 2026
15	Xtravirt	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	84 contacts →
	Strong evidence “Xtravirt is a cloud consulting and managed services business committed to supporting VMware and Omnissa customers across the full IT lifecycle.” Source: RevenueBase Database · checked Sep 21, 2026
16	Baseel Partners	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	78 contacts →
	Strong evidence “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Source: RevenueBase Database · checked Sep 21, 2026
17	Instant On IT	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	69 contacts →
	Strong evidence “Helping businesses accomplish more IT Management, Strategy and Cloud, IT Security and AI Solutions Office locations: Central London, New Zealand” Source: RevenueBase Database · checked Sep 21, 2026
18	6point6 Part Of Accenture	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	68 contacts →
	Indirect evidence “6point6 drives the right change in an organisation through the positive impact of technology.” Source: RevenueBase Database · checked Sep 21, 2026
19	Anya Consultancy Services	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	63 contacts →
	Partial evidence “ACS is a fast-emerging IT service provider focuses on providing quality, innovative, cost effective IT support services.” Source: RevenueBase Database · checked Sep 21, 2026
20	Northdoor PLC	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Partial evidence “Northdoor is an award-winning London-based IT consultancy and managed services provider with over 30 years’ experience.” Source: RevenueBase Database · checked Sep 21, 2026
21	Appvia	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	60 contacts →
	Partial evidence “Appvia helps organisations build, secure and innovate in the cloud.” Source: RevenueBase Database · checked Sep 21, 2026
22	Focus Cloud Group	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	59 contacts →
	Strong evidence “Focus Cloud Group helps organisations deliver successful cloud transformation through specialist consulting, talent solutions and strategic advisory across the world's leading…” Source: RevenueBase Database · checked Sep 21, 2026
23	Cloudplexo	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	54 contacts →
	Strong evidence “CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
24	Onepoint Consulting	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “We build digital worlds with our collaborators to ensure all the worlds we live in reap the benefits.” Source: RevenueBase Database · checked Sep 21, 2026
25	Blakyaks	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	51 contacts →
	Partial evidence “We support you at every stage of your cloud native transformation.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cloud IT consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cloud IT consulting firms.
Partial evidence: Its own public description names part of cloud IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud IT consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 728 cloud IT consulting firms based in London, United Kingdom

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Cloud IT consulting firms based in London, United Kingdom at a glance

As of Sep 21, 2026

10.2%Verified-email coverage

50.0Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

419

11-50

212

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 728 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cloud IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “cloud IT consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cloud IT consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cloud IT consulting firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 3,731 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cloud IT consulting firms by metro in the United Kingdom

Cloud IT consulting firms in London728
Cloud IT consulting firms in Manchester60
Cloud IT consulting firms in Milton Keynes27
Cloud IT consulting firms in Birmingham25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cloud IT consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cloud IT consulting firms are there based in London, United Kingdom?

RevenueBase identified 728 cloud IT consulting firms headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Computer Futures, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud IT consulting firms?

London leads with 728 headquartered companies, followed by Manchester (60) and Milton Keynes (27).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,731 verified decision-maker contacts tracked across these 728 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.