Company lists · Data verified August 2026

Top 25 Energy efficiency program software based in the United Kingdom

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 347 companies tracked

There are 347 energy efficiency program software headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 13,930 professional contacts across them, including 4,877 with verified work emails and 543 with mobile numbers. London is the largest hub.

This list covers energy efficiency program software headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

347Companies

13,930Contacts tracked

4,877Verified emails

543Mobile numbers

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The 25 largest energy efficiency program software based in the United Kingdom

Ranked by team size

Top 25 of 347 energy efficiency program software based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	British GAS	Staines	10001+	9,287	2,729
2	Correla	Solihull	201-500	291	166
3	E.On Control Solutions LTD	n/a	201-500	205	146
4	CFP Energy	London	201-500	177	95
5	Brady Technologies	Edinburgh	51-200	144	3
6	Amt-Sybex	n/a	51-200	120	52
7	ZTP	London	51-200	116	62
8	Gorilla	London	51-200	107	84
9	TROO	n/a	51-200	104	74
10	best.energy	London	51-200	97	43
11	Team Energy Auditing Agency LTD	Milton Keynes	51-200	70	31
12	Kinto Join Limited	Epsom	51-200	61	46
13	Matrix Control Solutions LTD	Glasgow	201-500	61	30
14	Powerverse	London	11-50	52	26
15	Fusion For Business	Durham	51-200	49	34
16	Gridedge	Birmingham	11-50	41	8
17	Faradai	London	51-200	40	18
18	MPL Technology Group	Bicester	11-50	31	5
19	Carbon Numbers	Elmstead Market	11-50	30	15
20	Celtic Dynamics	Birmingham	51-200	29	14
21	Smartwatt	Tunbridge Wells	11-50	28	15
22	Utilidex	London	11-50	28	13
23	Arbnco	Glasgow	51-200	26	21
24	Systemslink	Bedford	51-200	25	20
25	Demand Logic	London	11-50	25	10

Showing 25 of 347 energy efficiency program software based in the United Kingdom

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Energy efficiency program software based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 81 HQs

543Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

178

11-50

125

51-200

201-500

1,001-5,000

5,001-10,000

10001+

Energy efficiency program software by metro

Metro	Companies
Energy efficiency program software in London	81
Energy efficiency program software in Bristol	10
Energy efficiency program software in Manchester	9
Energy efficiency program software in Birmingham	9
Energy efficiency program software in Cambridge	6
Energy efficiency program software in Glasgow	5
Energy efficiency program software in Newcastle Upon Tyne	5

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy efficiency program software”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy efficiency program software are there based in the United Kingdom?

There are 347 energy efficiency program software headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most energy efficiency program software?

London leads with 81 headquartered companies, followed by Bristol (10) and Manchester (9).

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 4,877 verified decision-maker contacts tracked across these 347 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.