Company lists · Data refreshed September 2026

Top 25 Solar performance optimization services based in the United Kingdom

Name: Solar performance optimization services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 299 companies tracked

RevenueBase identified 299 solar performance optimization services headquartered in the United Kingdom as of September 2026 and tracks 1,734 professional contacts across them, including 591 with verified work emails. London is the largest hub.

This list covers solar performance optimization services 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 18, 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 18, 2026 86% judged on-target in blind review

299Companies

1,734Contacts tracked

591Verified emails

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The 25 largest solar performance optimization services based in the United Kingdom

Ranked by team size

Top 25 of 299 solar performance optimization services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar performance optimization 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	Wiseenergy	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	195 contacts →
	Partial evidence “WiseEnergy is a trusted solar asset manager, delivering a full range of market-leading services to our global clients.” Source: RevenueBase Database · checked Sep 18, 2026
2	Project Solar UK	Partial evidence	Burton On Trent, United KingdomHQ checked Sep 18, 2026	201-500	122 contacts →
	Partial evidence “Project Solar UK Ltd are a well-established Renewable Energy company.” Source: RevenueBase Database · checked Sep 18, 2026
3	Cleaner Group	Partial evidence	Wakefield, United KingdomHQ checked Sep 18, 2026	11-50	80 contacts →
	Partial evidence “Cleaner Group is a UK leader in full turnkey renewable energy solutions; primarily for commercial EV charging and solar PV.” Source: RevenueBase Database · checked Sep 18, 2026
4	ABOVE	Strong evidence	Co4 3zl, United KingdomHQ checked Sep 18, 2026	51-200	78 contacts →
	Strong evidence “Founded in 2016, Above partners with the world's leading solar companies to improve the quality, performance and resilience of utility-scale solar assets.” Source: RevenueBase Database · checked Sep 18, 2026
5	Evoenergy	Indirect evidence	Nottingham, United KingdomHQ checked Sep 18, 2026	11-50	54 contacts →
	Indirect 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 18, 2026
6	Brighter Green Engineering	Partial evidence	High Wycombe, United KingdomHQ checked Sep 18, 2026	51-200	43 contacts →
	Partial evidence “Brighter Green Engineering (BGE) is a specialist operations and maintenance provider for ground-mounted, utility-scale solar assets across the United Kingdom.” Source: RevenueBase Database · checked Sep 18, 2026
7	Infinity Renewables Group	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	32 contacts →
	Partial evidence “Infinity is a leading full service residential and commercial solar provider.” Source: RevenueBase Database · checked Sep 18, 2026
8	Naked Solar B-Corp	Partial evidence	Newquay, United KingdomHQ checked Sep 18, 2026	51-200	29 contacts →
	Partial evidence “2024: BCorp Certified 2023: South West Installer of the Year - Energy Efficiency Awards 2022: National Solar Installer Award Winner - Energy Efficiency Awards 2022: South West…” Source: RevenueBase Database · checked Sep 18, 2026
9	Beba Energy UK	Partial evidence	Hemel Hempstead, United KingdomHQ checked Sep 18, 2026	11-50	28 contacts →
	Partial evidence “Established in 2010, BeBa Energy have been developing, designing, installing and maintaining the highest quality commercial solar PV systems.” Source: RevenueBase Database · checked Sep 18, 2026
10	AES Solar	Partial evidence	Forres, United KingdomHQ checked Sep 18, 2026	11-50	25 contacts →
	Partial 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 18, 2026
11	SOL PV Group LTD	Partial evidence	Mytholmroyd, United KingdomHQ checked Sep 18, 2026	11-50	22 contacts →
	Partial evidence “At Sol PV Group, we have a comprehensive understanding of the commercial solar sector, where we’ve become one of the nation’s most trusted names for green energy.” Source: RevenueBase Database · checked Sep 18, 2026
12	Biosus Energy	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 18, 2026	11-50	20 contacts →
	Indirect evidence “Biosus Energy is a leading provider of sustainable energy solutions, empowering businesses to transition to clean and efficient heat and power sources.” Source: RevenueBase Database · checked Sep 18, 2026
13	Energiekontor UK Management LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 18, 2026	1-10	20 contacts →
	Indirect evidence “Offering full scope Renewable Energy Asset Management and Optimisation services, Energiekontor UK Management Ltd is based in Glasgow, UK.” Source: RevenueBase Database · checked Sep 18, 2026
14	Greenenco LTD	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	15 contacts →
	Partial evidence “GreenEnco is a Technical Advisor and engineering solution provider to solar and energy storage projects.” Source: RevenueBase Database · checked Sep 18, 2026
15	DES	Indirect evidence	Poulton Le Fylde, United KingdomHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “DES is an established electrical engineering and electrical contracting specialist, trusted to deliver complex electrical infrastructure projects for Tier 1 and Tier 2 principal…” Source: RevenueBase Database · checked Sep 18, 2026
16	Alphagen Energy	Partial evidence	Chesterfield, United KingdomHQ checked Sep 18, 2026	11-50	13 contacts →
	Partial evidence “AlphaGen Energy is a pioneering solar energy company dedicated to helping UK businesses achieve energy autonomy and sustainability.” Source: RevenueBase Database · checked Sep 18, 2026
17	Noble Green Energy	Partial evidence	North Scarle, United KingdomHQ checked Sep 18, 2026	11-50	12 contacts →
	Partial evidence “Noble Green Energy is a distinguished member of the Noble Foods Group – pioneering sustainable solar PV solutions since our inception in 2010.” Source: RevenueBase Database · checked Sep 18, 2026
18	Chamberlains Aqua & Energy Systems Limited Caesl	Indirect evidence	Southampton, United KingdomHQ checked Sep 18, 2026	1-10	12 contacts →
	Indirect evidence “Chamberlains Aqua & Energy Systems Limited (CAESL) is a UK-based cleantech company developing patented technologies and tailored consultancy services that accelerate the…” Source: RevenueBase Database · checked Sep 18, 2026
19	Upvolt	Partial evidence	London, United KingdomHQ checked Sep 18, 2026	51-200	11 contacts →
	Partial evidence “Upvolt helps homeowners take control of their energy with smart solar, heating and home energy management systems.” Source: RevenueBase Database · checked Sep 18, 2026
20	Orxagrid LTD	Indirect evidence	London, United KingdomHQ checked Sep 18, 2026	11-50	11 contacts →
	Indirect evidence “Energy optimisation analytics that improve energy efficiency, optimise assets and prevent faults” Source: RevenueBase Database · checked Sep 18, 2026
21	LOW Energy Services	Indirect evidence	Newton Mearns, United KingdomHQ checked Sep 18, 2026	11-50	10 contacts →
	Indirect evidence “Helping Businesses to a sustainable future one Kilowatt at a time.” Source: RevenueBase Database · checked Sep 18, 2026
22	Coactivation LTD	Partial evidence	Derby, United KingdomHQ checked Sep 18, 2026	1-10	10 contacts →
	Partial evidence “Coactivation Ltd: Solar Panel Installation for Your Home or Business in the East Midlands Are rising energy costs and the need for sustainability driving you to explore solar…” Source: RevenueBase Database · checked Sep 18, 2026
23	Adamas	Indirect evidence	Hexham, United KingdomHQ checked Sep 18, 2026	51-200	10 contacts →
	Indirect evidence “We are your ultimate partner, providing all-encompassing services and unwavering support to maximise your renewable assets' output.” Source: RevenueBase Database · checked Sep 18, 2026
24	2degreeskelvin	Partial evidence	Cardiff, United KingdomHQ checked Sep 18, 2026	1-10	10 contacts →
	Partial evidence “2DegreesKelvin is an award-winning, solar engineering company specialising in project life-cycle services and solutions for the utility-scale solar industry.” Source: RevenueBase Database · checked Sep 18, 2026
25	Solartech	Partial evidence	Cardiff, United KingdomHQ checked Sep 18, 2026	51-200	10 contacts →
	Partial evidence “Welcome to SolarTech-UK, your trusted partner in solar energy solutions.” Source: RevenueBase Database · checked Sep 18, 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: solar performance optimization 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 solar performance optimization services.
Partial evidence: Its own public description names part of solar performance optimization services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar performance optimization 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 299 solar performance optimization services based in the United Kingdom

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Solar performance optimization services based in the United Kingdom at a glance

As of Sep 18, 2026

34.1%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

10.7%Largest-city concentration · London

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

191

11-50

51-200

201-500

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 299 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 solar performance optimization 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 the United Kingdom whose own description of what they do matches “solar performance optimization 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 solar performance optimization 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 solar performance optimization services, 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, 591 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 18, 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.

Solar performance optimization services by metro

Solar performance optimization services in London32

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 solar performance optimization 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 solar performance optimization services are there based in the United Kingdom?

RevenueBase identified 299 solar performance optimization services 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?

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

Which city has the most solar performance optimization services?

London leads with 32 headquartered companies, followed by Glasgow (7) and Bristol (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 591 verified decision-maker contacts tracked across these 299 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 18, 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.