Company lists · Data refreshed September 2026

Top 25 Web hosting and cloud services based in London, United Kingdom

Name: Web hosting and cloud services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 271 companies tracked

RevenueBase identified 271 web hosting and cloud services headquartered in London, United Kingdom as of September 2026 and tracks 1,223 professional contacts across them, including 217 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers web hosting and cloud services 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 29, 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 29, 2026 86% judged on-target in blind review

271Companies

1,223Contacts tracked

217Verified emails

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The 25 largest web hosting and cloud services based in London, United Kingdom

Ranked by team size

Top 25 of 271 web hosting and cloud services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to web hosting and cloud services: 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	Sysgroup	Strong evidence	London, United KingdomHQ checked Sep 29, 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 29, 2026
2	Krystal	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	89 contacts →
	Strong evidence “Krystal is a premium UK-based web hosting and cloud services company, here to support you and the planet.” Source: RevenueBase Database · checked Sep 29, 2026
3	Dade2 Cloud	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “At Dade2, our mission is simple.” Source: RevenueBase Database · checked Sep 29, 2026
4	Akoova LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	14 contacts →
	Strong evidence “K-HOSTING FOR SUPREME ECOMMERCE BRANDS Akoova provides K-Hosting: a fully-tailored and automated cloud platform for Magento and Adobe Commerce hosting of supreme ecommerce brands…” Source: RevenueBase Database · checked Sep 29, 2026
5	Webairy	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “WebAiry specializes in providing extremely high performance and affordable VPS services for many applications and with various different specifications, located in multiple data…” Source: RevenueBase Database · checked Sep 29, 2026
6	ZSAH	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “zsah is an award-winning cloud and managed services company headquartered in London, UK.” Source: RevenueBase Database · checked Sep 29, 2026
7	Blue SKY Hosting LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	10 contacts →
	Partial evidence “Blue Sky is a Hosting, Cyber Security and Consulting company with expertise and enthusiasm for making technology work for our customers.” Source: RevenueBase Database · checked Sep 29, 2026
8	Blackbox Hosting LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “Private Cloud Infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
9	Iceline Hosting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “Iceline Hosting offers various hosting services such as game server hosting, VPS hosting, dedicated server hosting, and website hosting.” Source: RevenueBase Database · checked Sep 29, 2026
10	Hosthelp	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	9 contacts →
	Strong evidence “We specialise in web design, SEO, web hosting, email marketing, and design.” Source: RevenueBase Database · checked Sep 29, 2026
11	Connaught	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “Connaught is a web design company based in Fulham, South West London with extensive technical expertise.” Source: RevenueBase Database · checked Sep 29, 2026
12	Labixe LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	8 contacts →
	Strong evidence “Labixe Host offers a simple, reliable and easy-to-use cloud hosting solution that enables developers and businesses to quickly set up and run their websites or applications.” Source: RevenueBase Database · checked Sep 29, 2026
13	Eserve IT LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “The services we offer include: • IT Support and Maintenance for small to medium sized organisations • Range of IT Support Agreements at highly competitive rates, including…” Source: RevenueBase Database · checked Sep 29, 2026
14	Agile Tech Solutions	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong evidence “Agile Tech Global Solutions Limited is a UK-based provider of premium web hosting, domain registration, and VPN services.” Source: RevenueBase Database · checked Sep 29, 2026
15	Vxtream	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “vXtream is a leading independent UK provider of cloud and data centre services, with seven global points of presence.” Source: RevenueBase Database · checked Sep 29, 2026
16	Oshs LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “OSHS (Open Source Hosting Solutions) has been operating in the hosting industry since 2004, hosting and managing thousands of websites, thousands of servers and having served…” Source: RevenueBase Database · checked Sep 29, 2026
17	Elivax Designs LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect evidence “Elivax Designs LTD is a British company that specializes in developing websites for small, medium and large companies.” Source: RevenueBase Database · checked Sep 29, 2026
18	Hostingit4u	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “Providing hosted services and support, including hosted exchange, hosted desktop and hosted servers to SMEs.” Source: RevenueBase Database · checked Sep 29, 2026
19	Frontier Technology	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “Frontier Technology - an Ekco company is a leading IT infrastructure and cloud solutions provider focused on providing data security and management solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	Tech Generation LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Strong evidence “Providing hosting web services to existing and new businesses.” Source: RevenueBase Database · checked Sep 29, 2026
21	Direction Forward	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Direction Forward are a digital agency based in the City of London – working with enterprises, businesses, organisations and individuals on how to best leverage digital…” Source: RevenueBase Database · checked Sep 29, 2026
22	Clouvider	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	4 contacts →
	Partial evidence “Clouvider is a Leading global Cloud, Dedicated Servers, Colocation and Connectivity provider based in London, United Kingdom.” Source: RevenueBase Database · checked Sep 29, 2026
23	4tc Managed IT Services Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “4TC SERVICES LIMITED provide flexible, cost effective managed IT Support Services, this can be for on site equipment or cloud hosted.” Source: RevenueBase Database · checked Sep 29, 2026
24	Spire Hosting	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “Fast UK Cloud Web Hosting” Source: RevenueBase Database · checked Sep 29, 2026
25	Vertigo Sourcing	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “Do your Business, let us handle your digital world,' we started with the concept in our eyes.” Source: RevenueBase Database · checked Sep 29, 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: web hosting and cloud services. 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 web hosting and cloud services.
Partial evidence: Its own public description names part of web hosting and cloud services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name web hosting and cloud services. 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 271 web hosting and cloud services based in London, United Kingdom

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Web hosting and cloud services based in London, United Kingdom at a glance

As of Sep 29, 2026

17.7%Verified-email coverage

4.5Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

163

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 271 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 web hosting and cloud services, 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 “web hosting and cloud services”. 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 web hosting and cloud services), 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 web hosting and cloud services, 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, 217 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 29, 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.

Web hosting and cloud services by metro in the United Kingdom

Web hosting and cloud services in Manchester40

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 web hosting and cloud services, 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 web hosting and cloud services are there based in London, United Kingdom?

RevenueBase identified 271 web hosting and cloud services 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?

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

Which city in the United Kingdom has the most web hosting and cloud services?

London leads the United Kingdom with 271 headquartered companies, followed by Manchester (40) and Leeds (16).

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 217 verified decision-maker contacts tracked across these 271 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 29, 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.