Company lists · Data refreshed August 2026

Top 25 Cloud architecture design firms based in the United Kingdom

RevenueBase identified 1,168 cloud architecture design firms headquartered in the United Kingdom as of August 2026 and tracks 37,337 professional contacts across them, including 4,806 with verified work emails and 1,313 with mobile numbers. London is the largest hub.

This list covers cloud architecture design 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review
1,168Companies
37,337Contacts tracked
4,806Verified emails
1,313Mobile numbers
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The 25 largest cloud architecture design firms based in the United Kingdom

Ranked by team size
Top 25 of 1,168 cloud architecture design firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to cloud architecture design 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United Kingdom501-1,000669 contacts →

Indirect evidence

“SourceFuse is a global, AI-native digital and product engineering company that helps enterprises build, modernize, and scale intelligent systems.”

Source: RevenueBase Database · checked Aug 31, 2026
2Indirect evidenceLondon, United Kingdom501-1,000645 contacts →

Indirect evidence

“Fifteen years ago, Ahana began with a simple belief: technology should enable growth, not create complexity.”

Source: RevenueBase Database · checked Aug 31, 2026
3Partial evidenceLondon, United Kingdom501-1,000546 contacts →

Partial evidence

“Devoteam is a Diamond Tier Partner in the Google Cloud Services Partner Path and a Managed Services Provider.”

Source: RevenueBase Database · checked Aug 31, 2026
4Indirect evidenceTufton Warren, United Kingdom501-1,000421 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 Aug 31, 2026
5Indirect evidenceCoventry, United Kingdom501-1,000403 contacts →

Indirect evidence

“We believe successful businesses are underpinned by quality IT infrastructure.”

Source: RevenueBase Database · checked Aug 31, 2026
6Indirect evidenceLondon, United Kingdom201-500299 contacts →

Indirect evidence

“At Kocho, we believe greatness lies in everyone.”

Source: RevenueBase Database · checked Aug 31, 2026
7Partial evidenceLondon, United Kingdom201-500264 contacts →

Partial 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 Aug 31, 2026
8Partial evidenceDerby, United Kingdom51-200250 contacts →

Partial evidence

“BUI is an award-winning global technology consultancy delivering cloud, security, networking and managed services from offices in South Africa, East Africa, the United Kingdom…”

Source: RevenueBase Database · checked Aug 31, 2026
9Partial evidenceLeeds, United Kingdom1,001-5,000224 contacts →

Partial evidence

“Proact is a leading IT expert helping customers secure business critical data via best in class hybrid cloud solutions.”

Source: RevenueBase Database · checked Aug 31, 2026
10Partial evidenceLondon, United Kingdom201-500190 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 Aug 31, 2026
11Partial evidenceGlasgow, United Kingdom51-200184 contacts →

Partial evidence

“Cintra: Your multi-cloud infrastructure and database modernization and managed services partner.”

Source: RevenueBase Database · checked Aug 31, 2026
12Partial evidenceUnited Kingdom51-200168 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 Aug 31, 2026
13Indirect evidenceUnited Kingdom201-500159 contacts →

Indirect evidence

“Contino joined the Cognizant family in 2019.”

Source: RevenueBase Database · checked Aug 31, 2026
14Partial evidenceYork, United Kingdom51-200121 contacts →

Partial evidence

“Zure designs, builds, and manages digital solutions on Microsoft Azure.”

Source: RevenueBase Database · checked Aug 31, 2026
15Indirect evidenceLondon, United Kingdom51-200118 contacts →

Indirect evidence

“WHO WE ARE Glue Reply is a business consultancy that strives to help its clients achieve their future potential by developing solutions that often for the first time align IT…”

Source: RevenueBase Database · checked Aug 31, 2026
16Indirect evidenceLondon, United Kingdom51-200111 contacts →

Indirect evidence

“Trusted by some of the UK's most important organisations, Amber Labs delivers transformation where assurance matters just as much as pace.”

Source: RevenueBase Database · checked Aug 31, 2026
17Partial evidenceLondon, United Kingdom501-1,000110 contacts →

Partial evidence

“Navisite is a modern managed cloud service provider that accelerates IT transformation for thousands of growing and established global brands.”

Source: RevenueBase Database · checked Aug 31, 2026
18Partial evidenceLondon, United Kingdom201-50098 contacts →

Partial evidence

“Adapt is a leading UK managed cloud services provider and integrator, enabling customers’ digital evolution.”

Source: RevenueBase Database · checked Aug 31, 2026
19Indirect evidenceBrighton, United Kingdom51-20081 contacts →

Indirect evidence

“Trident is a trusted and leading independent IT solutions provider in the UK.”

Source: RevenueBase Database · checked Aug 31, 2026
20Indirect evidenceManchester, United Kingdom51-20073 contacts →

Indirect evidence

“Mismo Systems is a leading technology consulting and software company.”

Source: RevenueBase Database · checked Aug 31, 2026
21Indirect evidenceLondon, United Kingdom201-50073 contacts →

Indirect evidence

“6point6 drives the right change in an organisation through the positive impact of technology.”

Source: RevenueBase Database · checked Aug 31, 2026
22Indirect evidenceCanterbury, United Kingdom51-20072 contacts →

Indirect evidence

“ADM Computing is Kent’s largest and longest established independent IT services company We specialise in providing innovative IT support services to help reduce your IT costs…”

Source: RevenueBase Database · checked Aug 31, 2026
23Partial evidenceLeicester, United Kingdom51-20068 contacts →

Partial evidence

“TulipTech drives progress through unmatched Cloud Migration & Management capabilities, DevOps, NetOps, and SecOps.”

Source: RevenueBase Database · checked Aug 31, 2026
24Indirect evidenceSouthampton, United Kingdom501-1,00067 contacts →

Indirect evidence

“Cogeco Peer 1 has changed its name to Aptum Technologies.”

Source: RevenueBase Database · checked Aug 31, 2026
25Indirect evidenceLondon, United Kingdom51-20064 contacts →

Indirect evidence

“At PracticeVantage, we help organizations simplify complexity and unlock efficiency through smart, scalable digital solutions.”

Source: RevenueBase Database · checked Aug 31, 2026

Showing 25 of 1,168 cloud architecture design firms based in the United Kingdom

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Cloud architecture design firms based in the United Kingdom at a glance

As of Aug 31, 2026
12.9%Verified-email coverage
3.5%Mobile-number coverage
32.0Average contacts per company
1-10Median size (employees)
41.4%Largest-city concentration · London
Aug 31, 2026Page data refreshed

Companies by employee count

1-10
742
11-50
306
51-200
83
201-500
14
501-1,000
9
1,001-5,000
3
5,001-10,000
1

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 architecture design 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 architecture design 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 architecture design 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 architecture design 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, 4,806 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 August 31, 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 architecture design 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 architecture design firms are there based in the United Kingdom?

RevenueBase identified 1,168 cloud architecture design firms headquartered in the United Kingdom as of August 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?

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

Which city has the most cloud architecture design firms?

London leads with 484 headquartered companies, followed by Manchester (37) and Leeds (21).

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 4,806 verified decision-maker contacts tracked across these 1,168 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.