Company lists · Data refreshed September 2026

Top 25 Iot energy management companies based in the United Kingdom

RevenueBase identified 735 iot energy management companies headquartered in the United Kingdom as of September 2026 and tracks 30,430 professional contacts across them, including 11,097 with verified work emails. London is the largest hub.

This list covers iot energy 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 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
735Companies
30,430Contacts tracked
11,097Verified emails
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The 25 largest iot energy management companies based in the United Kingdom

Ranked by team size
Top 25 of 735 iot energy management companies 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 iot energy 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 17, 202610001+9,238 contacts →

Indirect evidence

“Taking care of things.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceWindsor, United KingdomHQ checked Sep 17, 202610001+4,555 contacts →

Partial 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 17, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 17, 20261,001-5,0002,627 contacts →

Partial 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 17, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 17, 20265,001-10,0001,064 contacts →

Partial evidence

“Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceGlasgow, United KingdomHQ checked Sep 17, 20261,001-5,000766 contacts →

Partial 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 17, 2026
6Indirect evidenceManchester, United KingdomHQ checked Sep 17, 20261,001-5,000692 contacts →

Indirect evidence

“We are Calisen.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceWalton-on-thames, United KingdomHQ checked Sep 17, 2026201-500658 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 17, 2026501-1,000595 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceGateshead, United KingdomHQ checked Sep 17, 2026501-1,000509 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceLuton, United KingdomHQ checked Sep 17, 2026n/a345 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
11Strong evidenceLondon, United KingdomHQ checked Sep 17, 202651-200275 contacts →

Strong evidence

“Established in 2002, Inatech is a global pioneer in intelligent cloud-based energy trading risk management (ETRM) and fuel management solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidenceNottingham, United KingdomHQ checked Sep 17, 202651-200273 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 17, 2026
13Strong evidenceBury, United KingdomHQ checked Sep 17, 2026201-500206 contacts →

Strong 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 17, 2026
14Partial evidenceAbingdon, United KingdomHQ checked Sep 17, 202651-200174 contacts →

Partial evidence

“Conrad Energy is a leading UK energy company.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 17, 2026201-500171 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceStallingborough, United KingdomHQ checked Sep 17, 2026201-500168 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
17Strong evidenceBristol, United KingdomHQ checked Sep 17, 202651-200142 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceSheffield, United KingdomHQ checked Sep 17, 202651-200135 contacts →

Partial 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 17, 2026
19Partial evidenceEdinburgh, United KingdomHQ checked Sep 17, 202651-200132 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceCardiff, United KingdomHQ checked Sep 17, 202651-200124 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidenceEnfield, United KingdomHQ checked Sep 17, 2026201-500112 contacts →

Partial 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
22Strong evidenceGlasgow, United KingdomHQ checked Sep 17, 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 17, 2026
23Indirect evidenceCoulsdon, United KingdomHQ checked Sep 17, 202651-200110 contacts →

Indirect evidence

“Today's buildings need to embrace wellbeing, user experience and flexibility while minimising their impact on the planet.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceDoxford International Business Park, United KingdomHQ checked Sep 17, 202651-200106 contacts →

Partial evidence

“Managing business energy can be overwhelming.”

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceLondon, United KingdomHQ checked Sep 17, 202651-20098 contacts →

Partial evidence

“eEnergy (AIM: EAAS) is a UK-based Energy-as-a-Service (EaaS) provider, funding and delivering energy-saving and energy-generating solutions across multi-site public sector and…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 735 iot energy management companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 11,097 reachable decision-makers.

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Iot energy management companies based in the United Kingdom at a glance

As of Sep 17, 2026
36.5%Verified-email coverage
41.4Average contacts per company
11-50Median size (employees)
18.0%Largest-city concentration · London
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
361
11-50
261
51-200
72
201-500
18
501-1,000
7
1,001-5,000
4
5,001-10,000
2
10001+
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 735 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 iot energy 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 “iot energy 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 iot energy 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 iot energy 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, 11,097 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.

Iot energy management companies by metro

  • Iot energy management companies in London132
  • Iot energy management companies in Manchester26

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 iot energy 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 iot energy management companies are there based in the United Kingdom?

RevenueBase identified 735 iot energy 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 iot energy management companies?

London leads with 132 headquartered companies, followed by Manchester (26) and Glasgow (14).

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 11,097 verified decision-maker contacts tracked across these 735 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.

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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.