Company lists · Data refreshed September 2026

Top 25 Enterprise energy management startups based in the United Kingdom

RevenueBase identified 673 company matches for enterprise energy management startups associated with the United Kingdom as of September 2026 and tracks 22,602 professional contacts across them, including 8,412 with verified work emails. London is the largest hub.

This list covers company matches for enterprise energy management startups associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
673Companies
22,602Contacts tracked
8,412Verified emails
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The 25 largest enterprise energy management startups based in the United Kingdom

Ranked by team size
Top 25 of 673 company matches for enterprise energy management startups based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWindsor, United KingdomHQ recorded Sep 28, 202610001+9,238 contacts →

Exact match

“Taking care of things.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLiverpool, United KingdomHQ recorded Sep 28, 20261,001-5,0001,049 contacts →

Exact match

“Clarke Energy, a Rehlko company, specialises in energy efficient, low carbon and flexible energy systems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchGlasgow, United KingdomHQ recorded Sep 28, 20261,001-5,000766 contacts →

Exact match

“Through our range of innovative energy solutions, we are delivering the future of smart energy – working closely with private and public sector partners to decarbonise the UK…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchManchester, United KingdomHQ recorded Sep 28, 20261,001-5,000692 contacts →

Exact match

“We are Calisen.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchWalton-on-thames, United KingdomHQ recorded Sep 28, 2026201-500658 contacts →

Exact match

“We are passionate about driving sustainable change for our planet.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000595 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchGateshead, United KingdomHQ recorded Sep 28, 2026501-1,000509 contacts →

Exact match

“As leaders in our field, we’re trusted by over businesses to provide a full energy service.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSolihull, United KingdomHQ recorded Sep 28, 2026201-500293 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchNottingham, United KingdomHQ recorded Sep 28, 202651-200273 contacts →

Exact match

“Yü Energy was built with a mission to shake up the UK business energy market, offering businesses innovative energy solutions that help save time and money.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchBury, United KingdomHQ recorded Sep 28, 2026201-500206 contacts →

Exact match

“Who we are » The UK’s leading Energy Management company » Our aim is to increase energy performance within buildings » Deliver energy projects to maximise customer return on…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchManchester, United KingdomHQ recorded Sep 28, 2026201-500196 contacts →

Exact match

“learnd was founded in 2020 to disrupt the way buildings operate by providing energy and cost savings at scale - we call this the Power of Many.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500171 contacts →

Exact match

“CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchStallingborough, United KingdomHQ recorded Sep 28, 2026201-500168 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchBristol, United KingdomHQ recorded Sep 28, 202651-200142 contacts →

Exact match

“Optimised exists to accelerate the shift to a low-carbon future by making energy management work; commercially, operationally and sustainably.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchEdinburgh, United KingdomHQ recorded Sep 28, 202651-200132 contacts →

Exact match

“ENODA’s world-class team are building the first truly decentralized, intelligent energy system that will reshape how we generate, store, and distribute energy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200125 contacts →

Exact match

“Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchCardiff, United KingdomHQ recorded Sep 28, 202651-200124 contacts →

Exact match

“We are an award-winning energy consultancy and certified B Corp™.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200123 contacts →

Exact match

“We are a new age technology driven company, providing comprehensive SaaS based ESG (Environmental, Social & Governance) solutions to address end to end sustainability needs of…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchOxfordshire, United KingdomHQ recorded Sep 28, 202651-200120 contacts →

Exact match

“AMT-SYBEX has worked in the infrastructure and energy industries since 1990, witnessing many changes; from privatisation to deregulation, to smart energy and beyond.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200115 contacts →

Exact match

“At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchEnfield, United KingdomHQ recorded Sep 28, 2026201-500112 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchGlasgow, United KingdomHQ recorded Sep 28, 202651-200111 contacts →

Exact match

“Smarter Grid Solutions is an enterprise energy software company with a unique end to end approach to Distributed Energy Resource Management Systems (DERMS) to deliver net zero…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200109 contacts →

Exact match

“Ecolibrium is a sustainability tech company that empowers people to make better decisions based on proven data-driven ML algorithms through continuous monitoring, analysis and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchDoxford International Business Park, United KingdomHQ recorded Sep 28, 202651-200106 contacts →

Exact match

“Managing business energy can be overwhelming.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500100 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 673 enterprise energy management startups based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,412 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise energy management startups based in the United Kingdom at a glance

As of Sep 28, 2026
37.2%Verified-email coverage
33.6Average contacts per company
1-10Median size (employees)
22.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
352
11-50
232
51-200
57
201-500
13
501-1,000
4
1,001-5,000
5
5,001-10,000
1
10001+
3

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 673 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “enterprise energy management startups” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 8,412 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise energy management startups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise energy management startups are there based in the United Kingdom?

RevenueBase identified 673 company matches for enterprise energy management startups associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

British GAS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most enterprise energy management startups?

London leads with 150 company records, followed by Manchester (27) and Bristol (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 8,412 professional contacts with verified work emails tracked across these 673 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 673 enterprise energy management startups based in the United Kingdom. Start with a free account, no credit card.

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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 SmartSearch, 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.