Company lists · Data refreshed September 2026

Top 25 Renewable energy for data centers based in the United Kingdom

Name: Renewable energy for data centers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 300 companies tracked

RevenueBase identified 300 renewable energy for data centers headquartered in the United Kingdom as of September 2026 and tracks 16,228 professional contacts across them, including 5,624 with verified work emails. London is the largest hub.

This list covers renewable energy for data centers 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 17, 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 17, 2026 86% judged on-target in blind review

300Companies

16,228Contacts tracked

5,624Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest renewable energy for data centers based in the United Kingdom

Ranked by team size

Top 25 of 300 renewable energy for data centers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy for data centers: 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	Octopus Energy	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,989 contacts →
	Partial evidence “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Source: RevenueBase Database · checked Sep 17, 2026
2	RES	Strong evidence	Kings Langley, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,721 contacts →
	Strong evidence “RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, transmission, and…” Source: RevenueBase Database · checked Sep 17, 2026
3	Lightsource BP	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,114 contacts →
	Strong evidence “Lightsource bp is working to support a future powered by renewable, affordable and reliable energy that benefits our partners, people and planet.” Source: RevenueBase Database · checked Sep 17, 2026
4	Sonnedix	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	563 contacts →
	Strong evidence “Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.” Source: RevenueBase Database · checked Sep 17, 2026
5	LOW Carbon	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	195 contacts →
	Strong evidence “Low Carbon creates renewable energy to fight climate change.” Source: RevenueBase Database · checked Sep 17, 2026
6	Octopus Energy Generation	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	153 contacts →
	Partial evidence “At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.” Source: RevenueBase Database · checked Sep 17, 2026
7	British Solar Renewables	Partial evidence	Shepton Mallet, United KingdomHQ checked Sep 17, 2026	51-200	148 contacts →
	Partial evidence “Clean energy, powered with purpose.” Source: RevenueBase Database · checked Sep 17, 2026
8	Bryt Energy	Partial evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	51-200	129 contacts →
	Partial evidence “Part of the Statkraft group, we provide British businesses with zero carbon, 100% renewable electricity*, sourced solely from Solar, Wind and Hydro.” Source: RevenueBase Database · checked Sep 17, 2026
9	AES	Strong evidence	Enfield, United KingdomHQ checked Sep 17, 2026	201-500	112 contacts →
	Strong evidence “As renewable energy technology experts, we have the knowledge and skills to help commercial clients switch to a greener, lower cost and more independent energy source.” Source: RevenueBase Database · checked Sep 17, 2026
10	Krystal	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	89 contacts →
	Indirect 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 17, 2026
11	Innova	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	77 contacts →
	Strong evidence “Innova is a forward-thinking renewable energy business, employing people across two offices in London and Cheltenham.” Source: RevenueBase Database · checked Sep 17, 2026
12	United GAS & Power	Strong evidence	Guiseley, United KingdomHQ checked Sep 17, 2026	51-200	73 contacts →
	Strong evidence “UGP is the highest rated business renewable energy supplier.” Source: RevenueBase Database · checked Sep 17, 2026
13	Wattstor	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “Think Outside The Grid.” Source: RevenueBase Database · checked Sep 17, 2026
14	Ecolution Group	Strong evidence	Trottiscliffe, United KingdomHQ checked Sep 17, 2026	51-200	55 contacts →
	Strong evidence “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Evoenergy	Partial evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	11-50	54 contacts →
	Partial evidence “Driving the market through innovation, EvoEnergy are the UK’s leading energy technology solutions provider, helping blue-chip clients and SME’s turn their sites into ‘sustainable…” Source: RevenueBase Database · checked Sep 17, 2026
16	Apatura	Strong evidence	York, United KingdomHQ checked Sep 17, 2026	51-200	50 contacts →
	Strong evidence “Operating at the intersection of renewable energy and digital infrastructure, we’re delivering the backbone of the digital world; powering critical services that blend efficiency…” Source: RevenueBase Database · checked Sep 17, 2026
17	Belltown Power	Strong evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	40 contacts →
	Strong evidence “Belltown Power is an international renewable energy company (IPP).” Source: RevenueBase Database · checked Sep 17, 2026
18	Natpower UK	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	38 contacts →
	Partial evidence “NatPower UK has the largest clean energy development programme in the UK, aiming at integrating large scale smart clean energy generation and distribution with large scale…” Source: RevenueBase Database · checked Sep 17, 2026
19	Olympus Power LTD	Partial evidence	Exeter, United KingdomHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “Zero Carbon Together means we're helping you own your energy.” Source: RevenueBase Database · checked Sep 17, 2026
20	Hive Energy	Partial evidence	East Wellow, United KingdomHQ checked Sep 17, 2026	201-500	29 contacts →
	Partial evidence “Hive Energy is on a mission to save the planet.” Source: RevenueBase Database · checked Sep 17, 2026
21	The BE Company	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	29 contacts →
	Indirect evidence “Building the infrastructure layer for the AI era.” Source: RevenueBase Database · checked Sep 17, 2026
22	Zestec Renewable Energy	Strong evidence	Bournemouth, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Strong evidence “Owned by funds advised by Octopus Energy Generation, one of Europe’s largest renewable energy investors currently managing renewable assets totalling more than £5bn, we are…” Source: RevenueBase Database · checked Sep 17, 2026
23	Balance Power	Partial evidence	St. Helens, United KingdomHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “Balance Power is a leading energy project developer, accelerating the UK's transition to a cleaner, smarter, and more secure energy future.” Source: RevenueBase Database · checked Sep 17, 2026
24	Greenpower Developments LTD	Indirect evidence	Alloa, United KingdomHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	AES Solar	Indirect evidence	Forres, United KingdomHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “AES Solar were established in 1979 in the North-East of Scotland and despite remaining loyal to our local roots we have become the leading solar specialists in Scotland and…” Source: RevenueBase Database · checked Sep 17, 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: renewable energy for data centers. 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 renewable energy for data centers.
Partial evidence: Its own public description names part of renewable energy for data centers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy for data centers. 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 300 renewable energy for data centers based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,624 reachable decision-makers.

Free signup · no credit card

View the full list →

Renewable energy for data centers based in the United Kingdom at a glance

As of Sep 17, 2026

34.7%Verified-email coverage

54.1Average contacts per company

11-50Median size (employees)

25.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

130

11-50

118

51-200

201-500

501-1,000

1,001-5,000

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 300 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 renewable energy for data centers, 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 “renewable energy for data centers”. 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 renewable energy for data centers), 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 renewable energy for data centers, 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, 5,624 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 17, 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.

Renewable energy for data centers by metro

Renewable energy for data centers in London76

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 renewable energy for data centers, 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 renewable energy for data centers are there based in the United Kingdom?

RevenueBase identified 300 renewable energy for data centers 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?

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

Which city has the most renewable energy for data centers?

London leads with 76 headquartered companies, followed by Manchester (7) and Belfast (6).

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 5,624 verified decision-maker contacts tracked across these 300 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 300 renewable energy for data centers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Renewable energy for data centers by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Renewable energy for data centers lists · New lists

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.