Company lists · Data refreshed September 2026

Top 25 Solar customer engagement platforms based in the United Kingdom

RevenueBase identified 948 solar customer engagement platforms headquartered in the United Kingdom as of September 2026 and tracks 12,351 professional contacts across them, including 4,870 with verified work emails. London is the largest hub.

This list covers solar customer engagement platforms 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 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
948Companies
12,351Contacts tracked
4,870Verified emails
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The 25 largest solar customer engagement platforms based in the United Kingdom

Ranked by team size
Top 25 of 948 solar customer engagement platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to solar customer engagement platforms: 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 KingdomHQ checked Sep 29, 20261,001-5,0003,989 contacts →

Indirect 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 29, 2026
2Indirect evidenceManchester, United KingdomHQ checked Sep 29, 20261,001-5,000692 contacts →

Indirect evidence

“We are Calisen.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026501-1,000595 contacts →

Partial evidence

“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceEuxton, United KingdomHQ checked Sep 29, 2026501-1,000380 contacts →

Indirect evidence

“We're ESG - and we put the power of data in your hands.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500378 contacts →

Indirect evidence

“We do energy, you do you.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceSolihull, United KingdomHQ checked Sep 29, 2026201-500293 contacts →

Partial evidence

“Correla exists because we dream of a simpler, greener society powered by our investment in innovation and our passion for customers.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-200195 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 29, 2026
8Indirect evidenceStallingborough, United KingdomHQ checked Sep 29, 2026201-500168 contacts →

Indirect evidence

“We give you control of your generated green energy, creating the ultimate eco-smart home.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceBurton On Trent, United KingdomHQ checked Sep 29, 2026201-500122 contacts →

Partial evidence

“Project Solar UK Ltd are a well-established Renewable Energy company.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceEnfield, United KingdomHQ checked Sep 29, 2026201-500112 contacts →

Indirect 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 29, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500100 contacts →

Indirect evidence

“Welcome to greener living, lower bills, and eco-tech that feels like home.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceBrinkworth, United KingdomHQ checked Sep 29, 202651-20095 contacts →

Partial evidence

“BELECTRIC UK is part of BELECTRIC, one of Europe's leading EPC service providers in the development, construction, and operation of solar power plants.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceWakefield, United KingdomHQ checked Sep 29, 202611-5080 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 29, 2026
14Partial evidenceMaidenhead, United KingdomHQ checked Sep 29, 202651-20079 contacts →

Partial evidence

“Fully funded solar solutions specialising in Commercial and Residential Solar with Battery.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceCo4 3zl, United KingdomHQ checked Sep 29, 202651-20078 contacts →

Partial 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 29, 2026
16Indirect evidenceManchester, United KingdomHQ checked Sep 29, 202651-20077 contacts →

Indirect evidence

“We’re building local energy communities based on renewables.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceManchester, United KingdomHQ checked Sep 29, 202611-5076 contacts →

Indirect evidence

“Powering ahead the UK's clean energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20068 contacts →

Indirect evidence

“Arenko is a market leading technology provider enabling the clean energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceNottingham, United KingdomHQ checked Sep 29, 202611-5054 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 29, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5052 contacts →

Partial evidence

“We offer the UK's only solar subscription, Sunsave Plus, which removes the upfront cost of solar entirely.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5050 contacts →

Indirect evidence

“Powerverse is a smart energy management company committed to creating a more affordable, connected electric future.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceNorwich, United KingdomHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

“Electrifying change for businesses.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceDoncaster, United KingdomHQ checked Sep 29, 202651-20048 contacts →

Indirect evidence

“Effective Home was established in 2016 to help homeowners make their homes more energy efficient, save money and reduce their carbon footprint.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026501-1,00043 contacts →

Indirect evidence

“We need intelligent technology to accelerate our path to net zero.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceHigh Wycombe, United KingdomHQ checked Sep 29, 202651-20043 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 29, 2026

Showing 25 of 948 solar customer engagement platforms based in the United Kingdom

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Solar customer engagement platforms based in the United Kingdom at a glance

As of Sep 29, 2026
39.4%Verified-email coverage
13.0Average contacts per company
1-10Median size (employees)
15.7%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
560
11-50
297
51-200
61
201-500
12
501-1,000
3
1,001-5,000
4

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 948 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 customer engagement platforms, 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 customer engagement platforms”. 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 customer engagement platforms), 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 customer engagement platforms, 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, 4,870 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.

Solar customer engagement platforms by metro

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 customer engagement platforms, 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 customer engagement platforms are there based in the United Kingdom?

RevenueBase identified 948 solar customer engagement platforms 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 solar customer engagement platforms?

London leads with 149 headquartered companies, followed by Manchester (19) and Nottingham (17).

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 4,870 verified decision-maker contacts tracked across these 948 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.