Company lists · Data refreshed September 2026

Top 25 Transactive energy companies based in the United Kingdom

RevenueBase identified 56 company matches for transactive energy companies associated with the United Kingdom as of September 2026 and tracks 2,792 professional contacts across them, including 1,541 with verified work emails. London is the largest hub.

This list covers company matches for transactive energy companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 16, 2026 How this list was built
56Companies
2,792Contacts tracked
1,541Verified emails
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The 25 largest transactive energy companies based in the United Kingdom

Ranked by team size
Top 25 of 56 company matches for transactive energy companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,000595 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500382 contacts →

Exact match

“Trayport is the primary network and platform for European wholesale energy markets.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchSolihull, United KingdomHQ recorded Sep 16, 2026201-500293 contacts →

Exact match

“Correla exists because we dream of a simpler, greener society powered by our investment in innovation and our passion for customers.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500239 contacts →

Exact match

“We're an energy tech company harnessing our trading expertise and proprietary technology to provide liquidity in a number of key markets across the energy complex.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-200146 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchEdinburgh, United KingdomHQ recorded Sep 16, 202651-200132 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchGlasgow, United KingdomHQ recorded Sep 16, 202651-200111 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchEdinburgh, United KingdomHQ recorded Sep 16, 202651-20087 contacts →

Exact match

“Flexitricity created the first demand response portfolio in GB.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchManchester, United KingdomHQ recorded Sep 16, 202651-20077 contacts →

Exact match

“We’re building local energy communities based on renewables.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchCambridge, United KingdomHQ recorded Sep 16, 202651-20076 contacts →

Exact match

“GMSL are the market leaders in software and 24/7 operations for gas and power companies across Europe.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20068 contacts →

Exact match

“Arenko is a market leading technology provider enabling the clean energy transition.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5050 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5045 contacts →

Exact match

“Piclo is the world’s leading independent marketplace for energy flexibility.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 16, 2026501-1,00043 contacts →

Exact match

“We need intelligent technology to accelerate our path to net zero.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchCheltenham, United KingdomHQ recorded Sep 16, 202651-20043 contacts →

Exact match

“With rocketing fossil energy prices driving a cost of living crisis, the renewable energy transition has never been in greater focus.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20035 contacts →

Exact match

“Amp X delivers an innovative digital energy platform providing grid software services holistically addressing the challenges associated with the energy transition at the edge of…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5026 contacts →

Exact match

“Utilidex delivers a range of integrated energy software products supporting end customers, consultants and energy suppliers/generators for data management, billing, trading…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchBristol, United KingdomHQ recorded Sep 16, 202611-5024 contacts →

Exact match

“The conventional way of trading renewable energy is outdated.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5018 contacts →

Exact match

“Open Energi, a bp Company create advanced technology to deliver an affordable, zero carbon energy future.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5016 contacts →

Exact match

“Volteras provides the data infrastructure that enables reliable, OEM-supported access to connected vehicle information.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5015 contacts →

Exact match

“Flatpeak is the global energy data platform for connected devices.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 16, 202611-5014 contacts →

Exact match

“Renewabl is an expert-led platform for energy data management and procurement – one place for corporate energy buyers to replace the fragmented tool stacks they rely on today-…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 16, 20261-1011 contacts →

Exact match

“SMPnet’s Omega technology suite is a core platform for advanced power system optimisation and control across modern energy networks.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchPort Solent, United KingdomHQ recorded Sep 16, 202611-5010 contacts →

Exact match

“Enegen Power Systems is a leading U.K.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchChelmsford, United KingdomHQ recorded Sep 16, 202611-508 contacts →

Exact match

“EnDCo is the brand name of EPG Energy Limited, a UK-based energy supply business operating in the corporate sector.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 56 transactive energy companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,541 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transactive energy companies based in the United Kingdom at a glance

As of Sep 16, 2026
55.2%Verified-email coverage
49.9Average contacts per company
11-50Median size (employees)
53.6%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
21
51-200
12
201-500
3
501-1,000
2

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 56 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “transactive energy companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,541 professional contacts with verified work emails across the full matched dataset. 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 16, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “transactive energy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transactive energy companies are there based in the United Kingdom?

RevenueBase identified 56 company matches for transactive energy companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kaluza tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transactive energy companies?

London leads with 30 company records, followed by Bristol (3) and Edinburgh (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,541 professional contacts with verified work emails tracked across these 56 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 SmartSearch, 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.