Company lists · Data verified August 2026

Top 25 Energy management software startups based in the United Kingdom

Name: Energy management software startups 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 298 companies tracked

There are 298 energy management software startups headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,134 professional contacts across them, including 1,505 with verified work emails and 203 with mobile numbers. London is the largest hub.

This list covers energy management software startups 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.

298Companies

3,134Contacts tracked

1,505Verified emails

203Mobile numbers

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The 25 largest energy management software startups based in the United Kingdom

Ranked by team size

Top 25 of 298 energy management software startups 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	Kaluza	London	501-1,000	601	359
2	E.On Control Solutions LTD	n/a	201-500	205	146
3	Learnd	Clerkenwell	201-500	200	134
4	Gorilla	London	51-200	107	84
5	best.energy	London	51-200	97	43
6	Matrix Control Solutions LTD	Glasgow	201-500	61	30
7	Powerverse	London	11-50	52	26
8	Fusion For Business	Durham	51-200	49	34
9	Gridedge	Birmingham	11-50	41	8
10	Joulen	Belfast	11-50	38	28
11	HARK	Leeds	11-50	34	28
12	MPL Technology Group	Bicester	11-50	31	5
13	Smartwatt	Tunbridge Wells	11-50	28	15
14	Utilidex	London	11-50	28	13
15	Arbnco	Glasgow	51-200	26	21
16	Systemslink	Bedford	51-200	25	20
17	Synapsys Solutions LTD	Burgess Hill	11-50	25	15
18	Demand Logic	London	11-50	25	10
19	Atamate Building Intelligence	Cardiff	11-50	20	13
20	Ecosync	London	11-50	20	11
21	Pillinger Controls LTD	Reigate	51-200	19	10
22	Wems Limited	Stockport Manchester	51-200	19	2
23	Voltaware	London	11-50	17	10
24	Powerhub Solutions	London	11-50	17	7
25	Smarterdm By Dimplex	Solihull	11-50	13	8

Showing 25 of 298 energy management software startups based in the United Kingdom

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Energy management software startups based in the United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 81 HQs

203Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

162

11-50

109

51-200

201-500

501-1,000

1,001-5,000

Energy management software startups by metro

Metro	Companies
Energy management software startups in London	81
Energy management software startups in Manchester	11
Energy management software startups in Cambridge	9
Energy management software startups in Glasgow	6
Energy management software startups in Belfast	6
Energy management software startups in Reading	4
Energy management software startups in Oxford	4

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 management software startups”, 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 management software startups are there based in the United Kingdom?

There are 298 energy management software startups headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Kaluza, headquartered in London, tops this list with the largest team on record.

Which city has the most energy management software startups?

London leads with 81 headquartered companies, followed by Manchester (11) and Cambridge (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 1,505 verified decision-maker contacts tracked across these 298 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.