Company lists · Data refreshed September 2026

Top 25 Energy audit software companies based in the United Kingdom

Name: Energy audit software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 88 companies tracked

RevenueBase identified 88 energy audit software companies headquartered in the United Kingdom as of September 2026 and tracks 361 professional contacts across them, including 171 with verified work emails. London is the largest hub.

This list covers energy audit software 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

88Companies

361Contacts tracked

171Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy audit software companies based in the United Kingdom

Ranked by team size

Top 25 of 88 energy audit software 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 energy audit software 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Designbuilder Software	Strong evidence	Stroud, United KingdomHQ checked Sep 28, 2026	11-50	31 contacts →
	Strong evidence “DesignBuilder is a state-of-the-art software tool for checking building energy, carbon, lighting and comfort performance.” Source: RevenueBase Database · checked Sep 28, 2026
2	Utilidex	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	26 contacts →
	Strong evidence “Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…” Source: RevenueBase Database · checked Sep 28, 2026
3	Integrated BMS LTD	Partial evidence	Newark, United KingdomHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Integrated BMS specialise in providing Energy Management Systems for the built environment.” Source: RevenueBase Database · checked Sep 28, 2026
4	Kestrix	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Kestrix uses thermal imaging and AI to map and quantify how heat escapes from buildings, assess heat pump and solar readiness, and generate energy retrofit plans – for more…” Source: RevenueBase Database · checked Sep 28, 2026
5	CAP Energy	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Cap Energy installs bespoke, accessible energy monitors at a site & appliance level and provides incredible data on power usage.” Source: RevenueBase Database · checked Sep 28, 2026
6	Briary	Partial evidence	Old Hatfield, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “SAP Assessments and Solutions - Design and as built Energy Feasibility Studies Energy Consumption Statements Air Leakage Testing Energy Performance Certificates Part L compliance…” Source: RevenueBase Database · checked Sep 28, 2026
7	Optimal Monitoring Home Of Emma AI	Partial evidence	High Wycombe, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Save significantly on energy costs and reduce your carbon footprint with zero capex, no installation, and no additional staff required.” Source: RevenueBase Database · checked Sep 28, 2026
8	Xwatts	Strong evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “xWatts is a smart energy management software that reduces costs and emissions by over 20% in commercial buildings via predictive control and automation.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ongen LTD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Providing digital tools to accelerate the journey to net-zero.” Source: RevenueBase Database · checked Sep 28, 2026
10	Heatio	Indirect evidence	Liverpool, United KingdomHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Digital tools for installers to assess homes, guide customers and prove performance.” Source: RevenueBase Database · checked Sep 28, 2026
11	CSR Sustain	Partial evidence	Bury, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “CSR Sustain provide a comprehensive suite of energy auditing services to optimise asset and operational performance in properties – increasing their asset value, helping…” Source: RevenueBase Database · checked Sep 28, 2026
12	Meterz	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “MeterZ removes barriers to collecting and analysing building energy data.” Source: RevenueBase Database · checked Sep 28, 2026
13	Bierce Surveying LTD	Partial evidence	Aylesbury, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Bierce’s wide and diverse range of surveying activities include auditing and technical monitoring for companies involved in energy efficiency measures, Energy Performance…” Source: RevenueBase Database · checked Sep 28, 2026
14	Esight Energy	Strong evidence	Cambridge, United KingdomHQ checked Sep 28, 2026	11-50	6 contacts →
	Strong evidence “eSight Energy, an MRI Software company, specializes in energy management software and services.” Source: RevenueBase Database · checked Sep 28, 2026
15	4energy Group	Indirect evidence	Wickford, United KingdomHQ checked Sep 28, 2026	51-200	6 contacts →
	Indirect evidence “4energy group includes, System Five Services, System Five Projects and analytics4energy.” Source: RevenueBase Database · checked Sep 28, 2026
16	EPC Choice	Partial evidence	Bromley, United KingdomHQ checked Sep 28, 2026	51-200	6 contacts →
	Partial evidence “EPC Choice \| Property Compliance & Energy Assessment Specialists EPC Choice is a UK-wide provider of energy and property compliance services, delivering over assessments annually…” Source: RevenueBase Database · checked Sep 28, 2026
17	Ecopare LTD	Partial evidence	Guildford, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “We help companies to reduce their energy usage.” Source: RevenueBase Database · checked Sep 28, 2026
18	RW AIR Energy LTD	Strong evidence	Waterlooville, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “Moving the boundaries of Air Conditioning Energy Audits!” Source: RevenueBase Database · checked Sep 28, 2026
19	Allander Analytics	Strong evidence	Glasgow, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “Allander Analytics is a UK based software development company specialising in the advancement of building energy analysis software.” Source: RevenueBase Database · checked Sep 28, 2026
20	GC Reports LTD	Partial evidence	Scunthorpe, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We are a leading name in Compliance Reporting providing professional Environmental Energy Assessment services to Domestic, Commercial and Industrial Organisations.” Source: RevenueBase Database · checked Sep 28, 2026
21	Icsynergy Energinet	Partial evidence	Welwyn Garden City, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “icSynergy is an experienced energy management solutions provider with a proven track record in helping businesses reduce their energy demands through typical intelligent…” Source: RevenueBase Database · checked Sep 28, 2026
22	The Energy Consultant	Strong evidence	Preston, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Founded by Anya Ghalayini in 2018, The Energy Consultant specialises in Energy and Environmental Audits, Commercial Energy Procurement and Project Management.” Source: RevenueBase Database · checked Sep 28, 2026
23	Smart Origin	Indirect evidence	Sunderland, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “To hit Net Zero, UK industry needs to reduce emissions by 68% by 2030 and 90% by 2050.” Source: RevenueBase Database · checked Sep 28, 2026
24	Epic Solutions	Partial evidence	Harrogate, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Providing EPC, EPC+ and Retrofit Assessment services measuring and improving the energy efficiency of your property.” Source: RevenueBase Database · checked Sep 28, 2026
25	Superowner	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Energy efficiency increases real estate value.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy audit software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy audit software companies.
Partial evidence: Its own public description names part of energy audit software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy audit software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 88 energy audit software 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 171 reachable decision-makers.

Free signup · no credit card

View the full list →

Energy audit software companies based in the United Kingdom at a glance

As of Sep 28, 2026

47.4%Verified-email coverage

4.1Average contacts per company

1-10Median size (employees)

18.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 88 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 audit software 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 “energy audit software 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 energy audit software 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 energy audit software 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, 171 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.

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 audit software 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 energy audit software companies are there based in the United Kingdom?

RevenueBase identified 88 energy audit software 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?

Designbuilder Software, headquartered in Stroud, tops this list with the largest team on record.

Which city has the most energy audit software companies?

London leads with 16 headquartered companies, followed by Birmingham (5) and Cambridge (3).

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 171 verified decision-maker contacts tracked across these 88 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.

Ready to reach these companies? Verified emails and direct dials for all 88 energy audit software companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Energy audit software companies by geography

Browse the directory

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.