Company lists · Data refreshed September 2026

Top 25 Cloud transformation consulting firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 1,638 companies tracked

RevenueBase identified 1,638 cloud transformation consulting firms headquartered in the United Kingdom as of September 2026 and tracks 51,032 professional contacts across them, including 10,050 with verified work emails. London is the largest hub.

This list covers cloud transformation consulting firms headquartered in the 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 27, 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 27, 2026 86% judged on-target in blind review

1,638Companies

51,032Contacts tracked

10,050Verified emails

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The 25 largest cloud transformation consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,638 cloud transformation consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cloud transformation 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	Equal Experts	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	1,172 contacts →
	Indirect evidence “We are honoured to be recognised as one of the Top 10 Best Places to Work in the UK for the third year running, according to Glassdoor’s prestigious 2026 list.” Source: RevenueBase Database · checked Sep 27, 2026
2	CTS	Partial evidence	Manchester, United KingdomHQ checked Sep 27, 2026	201-500	844 contacts →
	Partial evidence “We are the largest Google Cloud-only digital consultancy in Europe, and our mission is to change the way technology works for business.” Source: RevenueBase Database · checked Sep 27, 2026
3	KERV	Indirect evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
4	VML Enterprise Solutions	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	697 contacts →
	Partial evidence “Follow us now at WPP Enterprise Solutions, WPP’s global business transformation unit, designing, building and operating the growth systems that competitive businesses rely on.” Source: RevenueBase Database · checked Sep 27, 2026
5	Systal Technology Solutions	Strong evidence	Glasgow, United KingdomHQ checked Sep 27, 2026	501-1,000	647 contacts →
	Strong evidence “Systal is a global managed network, cloud and security transformation specialist.” Source: RevenueBase Database · checked Sep 27, 2026
6	Ultima	Indirect evidence	Berkshire, United KingdomHQ checked Sep 27, 2026	201-500	428 contacts →
	Indirect evidence “We’re technology experts trusted by organisations globally to achieve successful business outcomes through our award-winning services and solutions.” Source: RevenueBase Database · checked Sep 27, 2026
7	ACORA	Indirect evidence	Burgess Hill, United KingdomHQ checked Sep 27, 2026	501-1,000	423 contacts →
	Indirect evidence “We’ve been on a mission to bring together people and technology since the day we were founded over 25 years ago.” Source: RevenueBase Database · checked Sep 27, 2026
8	Iomart	Partial evidence	Glasgow, United KingdomHQ checked Sep 27, 2026	201-500	414 contacts →
	Partial evidence “Iomart combines cutting-edge cloud technology with deep industry expertise to help organisations transform with confidence.” Source: RevenueBase Database · checked Sep 27, 2026
9	KIN Carta	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	5,001-10,000	400 contacts →
	Indirect evidence “Kin + Carta was acquired by Valtech in 2024.” Source: RevenueBase Database · checked Sep 27, 2026
10	FSP	Strong evidence	Reading, United KingdomHQ checked Sep 27, 2026	201-500	366 contacts →
	Strong evidence “FSP is a leading consultancy specialising in Data and AI, Cyber Security, Enterprise Cloud and Change Delivery, providing advisory led enterprise transformation delivered through…” Source: RevenueBase Database · checked Sep 27, 2026
11	Cartesian	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	302 contacts →
	Partial evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 27, 2026
12	KOCHO	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	295 contacts →
	Indirect evidence “At Kocho, we believe greatness lies in everyone.” Source: RevenueBase Database · checked Sep 27, 2026
13	Transparity	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	284 contacts →
	Indirect evidence “We are the UK’s most accredited, pureplay, Microsoft partner.” Source: RevenueBase Database · checked Sep 27, 2026
14	Datatonic	Partial evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
15	Armakuni	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	264 contacts →
	Strong evidence “Armakuni is a cloud-native technology consultancy and AWS Premier Partner, trusted by enterprises across industries to accelerate their digital transformation journeys.” Source: RevenueBase Database · checked Sep 27, 2026
16	Vertex Agility	Partial evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
17	Percipere	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	245 contacts →
	Indirect evidence “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Source: RevenueBase Database · checked Sep 27, 2026
18	Orbus Software	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	236 contacts →
	Strong evidence “Orbus Software is a leading provider of cloud solutions for enterprise transformation, with regional offices in Australia, Poland, the US, and the UK.” Source: RevenueBase Database · checked Sep 27, 2026
19	Cloudrock	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	211 contacts →
	Partial evidence “We specialise in digital transformation, with deep expertise across Advisory, Delivery, Optimisation, Apps and AI.” Source: RevenueBase Database · checked Sep 27, 2026
20	Genese Solution	Strong evidence	Plymouth, United KingdomHQ checked Sep 27, 2026	51-200	199 contacts →
	Strong evidence “Genese Solution is a technology service company leading digital transformation with roots in Cloud Computing, Cloud Native Software Development & Cloud Security.” Source: RevenueBase Database · checked Sep 27, 2026
21	Absolutelabs	Partial evidence	London, United KingdomHQ checked Sep 27, 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 27, 2026
22	Atech Cloud	Strong evidence	Marlow, United KingdomHQ checked Sep 27, 2026	51-200	178 contacts →
	Strong evidence “24 x 7 Cloud Service Provider & Managed Security Service Provider delivering technology transformation.” Source: RevenueBase Database · checked Sep 27, 2026
23	Azurian	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	178 contacts →
	Indirect evidence “The future has never moved this fast.” Source: RevenueBase Database · checked Sep 27, 2026
24	Cloud Direct	Partial evidence	Bath, United KingdomHQ checked Sep 27, 2026	51-200	168 contacts →
	Partial evidence “Cloud Direct is a leading Microsoft Partner that helps organisations realise the true value of artificial intelligence and position themselves as Agent-Ready Enterprises.” Source: RevenueBase Database · checked Sep 27, 2026
25	Interex Group	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	51-200	160 contacts →
	Partial evidence “InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.” Source: RevenueBase Database · checked Sep 27, 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 transformation 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 transformation consulting firms.
Partial evidence: Its own public description names part of cloud transformation 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 transformation 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 1,638 cloud transformation consulting firms based in the United Kingdom

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Cloud transformation consulting firms based in the United Kingdom at a glance

As of Sep 27, 2026

19.7%Verified-email coverage

31.2Average contacts per company

1-10Median size (employees)

46.5%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

959

11-50

454

51-200

155

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,638 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 transformation 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 the United Kingdom whose own description of what they do matches “cloud transformation 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 transformation 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 transformation consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom 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, 10,050 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 27, 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.

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 transformation 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 transformation consulting firms are there based in the United Kingdom?

RevenueBase identified 1,638 cloud transformation consulting firms headquartered in the 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?

Equal Experts, headquartered in London, tops this list with the largest team on record.

Which city has the most cloud transformation consulting firms?

London leads with 761 headquartered companies, followed by Manchester (62) and Reading (24).

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 10,050 verified decision-maker contacts tracked across these 1,638 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 27, 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.