Company lists · Data refreshed September 2026
Top 25 Openstack providers based in the United Kingdom
RevenueBase identified 104 openstack providers headquartered in the United Kingdom as of September 2026 and tracks 1,004 professional contacts across them, including 302 with verified work emails. London is the largest hub.
This list covers openstack providers 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 20, 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.
The 25 largest openstack providers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 81 contacts → | ||||
Indirect evidence “Internet hosting service company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 77 contacts → | ||||
Indirect evidence “We are a fully-managed global hosting provider offering industry-leading technology with a customer-centric approach.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 75 contacts → | ||||
Indirect evidence “Civo is the Sovereign Cloud and AI platform that frees you to build without limits.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 66 contacts → | ||||
Indirect evidence “We would like to share some exciting news – Onyx Group has been acquired by cloud, colocation and managed hosting expert Pulsant, expanding its network to 15 UK-based datacentres.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 60 contacts → | ||||
Indirect evidence “Appvia helps organisations build, secure and innovate in the cloud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 50 contacts → | ||||
Indirect evidence “At Q Associates we live and breathe information technology and we're passionate about the difference it can make to an organisation when you get it right.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 29 contacts → | ||||
Indirect evidence “ShapeBlue is the largest independent integrator of CloudStack technologies globally.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 28 contacts → | ||||
Indirect evidence “Eloquent operates a range of platforms across various secure data centres in the UK, all of which are connected to our network and serve as the delivery point for our services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Strong evidence “StackHPC is one of the leading OpenStack consultancies working with research institutions worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Indirect evidence “A distributed cloud platform that runs closer to users – delivering reliable performance, transparent infrastructure, and cost efficiency for modern media and enterprise workloads.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 contacts → | ||||
Indirect evidence “Open, Affordable, Predictable.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect evidence “Keep IT Simple (KITS), a TPXimpact company, delivers secure, inclusive and outcome-focused digital transformation services for Government and public sector organisations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Indirect evidence “Data, DevOps and Cloud Experts: Future-Proof Your Infrastructure At digitalis.io, we design and manage portable, secure systems that thrive across any environment-public clouds…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “Synopsis provides a variety of innovative and comprehensive IT Cloud solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 contacts → | ||||
Indirect evidence “Newton IT are a managed services provider delivering innovative technology solutions to businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “Qubic Group is a highly experienced, trusted organisation that delivers a range of business and enterprise grade Cloud Services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Indirect evidence “In a technology world where new technologies come and go, we've been building trusted client partnerships for 24 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Indirect evidence “Private Cloud Infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “ZanaNET delivers next-generation networking and cloud infrastructure solutions that empower service providers, data centres, ISPs, resellers, and multi-site organisations to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence “ISO 9001 certified leading provider of Cloud Technologies, Network Infrastructure, IT Security and Support services, offering innovative managed services to our clients managed…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Hyperslice Group, leading independent, managed hosting provider with a the eukhost and Webhosting UK brands.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Indirect evidence “Cirro is a UK MSP, specialising in Microsoft Azure, cyber resilience, AI & application development, working with mid-market businesses, public sector organisations, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Indirect evidence “At Scaleblade we are developing a suite of cloud compute tools to help keep you (and your business) online.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “Cloud53 was born with a desire to improve operational IT through strategic use of Cloud technologies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
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: openstack providers. 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 openstack providers.
- Partial evidence
- Its own public description names part of openstack providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name openstack providers. 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 104 openstack providers based in the United Kingdom
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Openstack providers based in the United Kingdom at a glance
As of Sep 20, 2026Companies by employee count
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 104 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 openstack providers, 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 “openstack providers”. 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 openstack providers), 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 openstack providers, 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, 302 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 20, 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.
Openstack providers by metro
- Openstack providers in London41
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 openstack providers, 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 openstack providers are there based in the United Kingdom?
RevenueBase identified 104 openstack providers 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?
Ukfast, headquartered in England, tops this list with the largest team on record.
Which city has the most openstack providers?
London leads with 41 headquartered companies, followed by Manchester (4) and Basingstoke (3).
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 302 verified decision-maker contacts tracked across these 104 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 20, 2026.
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Openstack providers by geography
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- Openstack providers based in Israel
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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.