Company lists · Data refreshed September 2026

Top 25 Enterprise power management companies based in the United Kingdom

RevenueBase identified 676 enterprise power management companies headquartered in the United Kingdom as of September 2026 and tracks 31,064 professional contacts across them, including 10,722 with verified work emails. London is the largest hub.

This list covers enterprise power management companies 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 28, 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 28, 2026 86% judged on-target in blind review
676Companies
31,064Contacts tracked
10,722Verified emails
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The 25 largest enterprise power management companies based in the United Kingdom

Ranked by team size
Top 25 of 676 enterprise power management companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise power management companies: 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 evidenceWindsor, United KingdomHQ checked Sep 28, 202610001+9,238 contacts →

Indirect evidence

“Taking care of things.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceWindsor, United KingdomHQ checked Sep 28, 202610001+4,555 contacts →

Indirect evidence

“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,627 contacts →

Indirect evidence

“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceThame, United KingdomHQ checked Sep 28, 20261,001-5,0001,238 contacts →

Partial evidence

“Lucy Electric is a leader in secondary power distribution solutions with over 100 years’ industry experience.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceGlasgow, United KingdomHQ checked Sep 28, 20261,001-5,000766 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceManchester, United KingdomHQ checked Sep 28, 20261,001-5,000692 contacts →

Indirect evidence

“We are Calisen.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWalton-on-thames, United KingdomHQ checked Sep 28, 2026201-500658 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000595 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceGateshead, United KingdomHQ checked Sep 28, 2026501-1,000509 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceAberdeen, United KingdomHQ checked Sep 28, 2026501-1,000446 contacts →

Indirect evidence

“A new breed of engineering, procurement and construction (EPC) provider that is turning next-gen energy into operational reality, through innovative solutions, partnerships and…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLoughborough, United KingdomHQ checked Sep 28, 2026501-1,000367 contacts →

Indirect evidence

“We support the global drive to net zero with innovative, engineered solutions that address grid resilience and systems challenges, facilitate electrification of transport and…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceLuton, United KingdomHQ checked Sep 28, 2026n/a345 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceMaidenhead, United KingdomHQ checked Sep 28, 2026201-500272 contacts →

Partial evidence

“AVK is the largest and fastest-growing supplier of innovative power solutions for data centres, AI infrastructure and leading organisations in the UK and Europe.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceScarborough, United KingdomHQ checked Sep 28, 2026201-500214 contacts →

Partial evidence

“Founded in 1935 Dale Power Solutions Ltd have been providing reliable; secure power solutions for mission critical services & systems throughout the world.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceBury, United KingdomHQ checked Sep 28, 2026201-500206 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceTewkesbury, United KingdomHQ checked Sep 28, 202651-200175 contacts →

Strong evidence

“ABEC is one of the leading independent Building Management System (BMS) and Electrical Power Monitoring System (EPMS) specialists.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceAbingdon, United KingdomHQ checked Sep 28, 202651-200174 contacts →

Indirect evidence

“Conrad Energy is a leading UK energy company.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceHeanor, United KingdomHQ checked Sep 28, 202651-200168 contacts →

Partial evidence

“WB Power Services Ltd (now proudly part of Rehlko) provide critical power services to some of the UK’s most important businesses and organisations, ensuring essential services are…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceStallingborough, United KingdomHQ checked Sep 28, 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 28, 2026
20Indirect evidenceWarmley, United KingdomHQ checked Sep 28, 2026201-500161 contacts →

Indirect evidence

“We bring the energy!”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceCannock, United KingdomHQ checked Sep 28, 20261,001-5,000141 contacts →

Partial evidence

“Finning Power & Energy is a division of Finning, the sole dealer for Caterpillar in the UK & Ireland.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceSheffield, United KingdomHQ checked Sep 28, 202651-200135 contacts →

Strong evidence

“A D2Zero Company With a 24-year track record, Powerstar is an industry leader in electrification, specialising in designing and manufacturing cutting-edge power management tech…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceGateshead, United KingdomHQ checked Sep 28, 202651-200132 contacts →

Partial evidence

“Established in 1986, Turbo Power Systems (TPS) is a globally recognised designer and manufacturer of technologically advanced power electronics solutions for customers in the…”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceSutton-in-ashfield, United KingdomHQ checked Sep 28, 2026201-500117 contacts →

Partial evidence

“AF Switchgear is one of the UK's largest switchgear manufacturers and set the standard for LV Switchgear and Power Distribution.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceGlasgow, United KingdomHQ checked Sep 28, 202651-200111 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 676 enterprise power management companies based in the United Kingdom

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Enterprise power management companies based in the United Kingdom at a glance

As of Sep 28, 2026
34.5%Verified-email coverage
46.0Average contacts per company
11-50Median size (employees)
13.6%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
307
11-50
245
51-200
77
201-500
16
501-1,000
10
1,001-5,000
6
5,001-10,000
2
10001+
5

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 676 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 enterprise power management companies, 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 “enterprise power management companies”. 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 enterprise power management companies), 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 enterprise power management companies, 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, 10,722 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 28, 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.

Enterprise power management companies 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 enterprise power management companies, 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 enterprise power management companies are there based in the United Kingdom?

RevenueBase identified 676 enterprise power management companies 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?

British GAS, headquartered in Windsor, tops this list with the largest team on record.

Which city has the most enterprise power management companies?

London leads with 92 headquartered companies, followed by Manchester (20) and Glasgow (11).

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 10,722 verified decision-maker contacts tracked across these 676 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 28, 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.