Company lists · Data refreshed September 2026

Top 25 Energy cost management software developers based in the United Kingdom

RevenueBase identified 355 energy cost management software developers headquartered in the United Kingdom as of September 2026 and tracks 17,799 professional contacts across them, including 5,998 with verified work emails. London is the largest hub.

This list covers energy cost management software developers 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
355Companies
17,799Contacts tracked
5,998Verified emails
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The 25 largest energy cost management software developers based in the United Kingdom

Ranked by team size
Top 25 of 355 energy cost management software developers 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 energy cost management software developers: 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
2Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,627 contacts →

Strong 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
3Indirect 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
4Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000595 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceEuxton, United KingdomHQ checked Sep 28, 2026501-1,000380 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSolihull, United KingdomHQ checked Sep 28, 2026201-500293 contacts →

Indirect 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 28, 2026
7Strong evidenceLondon, United KingdomHQ checked Sep 28, 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 28, 2026
8Strong evidenceBury, United KingdomHQ checked Sep 28, 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 28, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200146 contacts →

Partial evidence

“At Brady Technologies, we are at the forefront of the energy transition, helping market participants navigate new challenges and opportunities with confidence.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceOxfordshire, United KingdomHQ checked Sep 28, 202651-200120 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceManchester, United KingdomHQ checked Sep 28, 202651-200117 contacts →

Strong evidence

“POWWR is a cloud-based software provider for the energy and utilities sector.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceDoxford International Business Park, United KingdomHQ checked Sep 28, 202651-200106 contacts →

Partial evidence

“Managing business energy can be overwhelming.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-20097 contacts →

Strong evidence

“Best.Energy is a UK based company specialising in the measurement, control and reduction of energy consumption and costs within the industrial, commercial and public sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceHoughton Le Spring, United KingdomHQ checked Sep 28, 202651-20067 contacts →

Strong evidence

“As one of the largest energy consultancies in the UK, Direct Business Solutions can take the hassle out of business utilities with comprehensive utility management services.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceChorley, United KingdomHQ checked Sep 28, 2026201-50060 contacts →

Partial evidence

“ESG is the leading single-source enabler of market entry leading competitive growth at scale, operational performance optimisation and smart enablement for new entrant energy…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceManchester, United KingdomHQ checked Sep 28, 202651-20060 contacts →

Indirect evidence

“We started as generators, not brokers.”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceBury, United KingdomHQ checked Sep 28, 2026201-50060 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 28, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20060 contacts →

Partial evidence

“We help heavy industry like steel become more energy efficient through the deployment of intelligent MV motor control via a zero-capex model: guaranteed net savings for the…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceNewbury, United KingdomHQ checked Sep 28, 202651-20055 contacts →

Partial evidence

“Fidelity Energy is changing the way businesses procure their energy.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5050 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceKingston Upon Thames, United KingdomHQ checked Sep 28, 202651-20049 contacts →

Partial evidence

“TMA is the first-choice metering technology partner for the UK's most innovative energy suppliers.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceDurham, United KingdomHQ checked Sep 28, 202651-20049 contacts →

Indirect evidence

“At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceChessington, United KingdomHQ checked Sep 28, 202651-20045 contacts →

Strong evidence

“Evinox delivers intelligent heat network hardware, technology & services that lower costs, reduce carbon emission & enhances residents comfort through smart real-time management…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceBishops Stortford, United KingdomHQ checked Sep 28, 202611-5042 contacts →

Indirect evidence

“Trusted partners for residential property managers, delivering innovative solutions for procurement, metering, billing and data collection.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceWhite Moss Business Park, United KingdomHQ checked Sep 28, 202611-5042 contacts →

Partial evidence

“Cotopaxi Energy is an independent engineering consultancy specialising in utility and carbon reduction.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 355 energy cost management software developers based in the United Kingdom

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Energy cost management software developers based in the United Kingdom at a glance

As of Sep 28, 2026
33.7%Verified-email coverage
50.1Average contacts per company
1-10Median size (employees)
19.7%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
179
11-50
124
51-200
34
201-500
8
501-1,000
3
1,001-5,000
2
10001+
1

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 355 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 energy cost management software developers, 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 “energy cost management software developers”. 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 energy cost management software developers), 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 energy cost management software developers, 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, 5,998 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.

Energy cost management software developers 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 energy cost management software developers, 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 energy cost management software developers are there based in the United Kingdom?

RevenueBase identified 355 energy cost management software developers 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 energy cost management software developers?

London leads with 70 headquartered companies, followed by Manchester (13) and Birmingham (10).

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 5,998 verified decision-maker contacts tracked across these 355 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.