Company lists · Data refreshed September 2026

Top 25 Grid balancing technology companies based in the United Kingdom

Name: Grid balancing technology 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 19, 2026 72 companies tracked

RevenueBase identified 72 grid balancing technology companies headquartered in the United Kingdom as of September 2026 and tracks 1,396 professional contacts across them, including 624 with verified work emails. London is the largest hub.

This list covers grid balancing technology 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 19, 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 19, 2026 86% judged on-target in blind review

72Companies

1,396Contacts tracked

624Verified emails

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The 25 largest grid balancing technology companies based in the United Kingdom

Ranked by team size

Top 25 of 72 grid balancing technology companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to grid balancing technology 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	FIELD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	179 contacts →
	Indirect evidence “We're creating the renewable energy infrastructure and trading company of the future.” Source: RevenueBase Database · checked Sep 19, 2026
2	Enoda LTD	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	132 contacts →
	Indirect evidence “ENODA’s world-class team are building the first truly decentralized, intelligent energy system that will reshape how we generate, store, and distribute energy.” Source: RevenueBase Database · checked Sep 19, 2026
3	Habitat Energy	Partial evidence	Oxford, United KingdomHQ checked Sep 19, 2026	11-50	114 contacts →
	Partial evidence “Habitat Energy provide a state-of-the-art optimisation and trading platform for grid-scale battery storage and renewables in the UK, US, and Australia.” Source: RevenueBase Database · checked Sep 19, 2026
4	Smarter Grid Solutions	Partial evidence	Glasgow, United KingdomHQ checked Sep 19, 2026	51-200	111 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
5	Harmony Energy	Indirect evidence	Knaresborough, United KingdomHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Founded in 2010, Harmony Energy is one of the UK’s leading developers, owners and operators of utility-scale battery energy storage.” Source: RevenueBase Database · checked Sep 19, 2026
6	Reactive Technologies Limited	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	66 contacts →
	Strong evidence “Reactive Technologies (RTL) is a global Grid-Enhancing Technologies (GETs) company addressing the challenges of energy transition, electrification and accelerating load growth.” Source: RevenueBase Database · checked Sep 19, 2026
7	PICLO	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “Piclo is the world’s leading independent marketplace for energy flexibility.” Source: RevenueBase Database · checked Sep 19, 2026
8	Noriker Power LTD	Indirect evidence	Cheltenham, United KingdomHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “With rocketing fossil energy prices driving a cost of living crisis, the renewable energy transition has never been in greater focus.” Source: RevenueBase Database · checked Sep 19, 2026
9	Voltwise Power	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “Voltwise develops, owns and operates flexible energy storage solutions that allow rapid deployment of renewables.” Source: RevenueBase Database · checked Sep 19, 2026
10	Pulse Clean Energy	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Through innovation in energy storage and optimisation, we will help to enable an energy network that runs entirely on renewables.” Source: RevenueBase Database · checked Sep 19, 2026
11	KX Power Limited	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	35 contacts →
	Partial evidence “KX Power is a leading developer and asset manager of utility scale energy storage and flexibility technology headquartered in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
12	AMP X	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	35 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
13	MSP Technologies LTD	Indirect evidence	Carnforth, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Energy Storage Experts Modular hybrid power systems designed for rapid deployment with multiple renewable energy sources in any environment Making Clean Power Work Whether you…” Source: RevenueBase Database · checked Sep 19, 2026
14	Oaktree Power	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “OakTree Power is the leading climate technology provider headquartered in London.” Source: RevenueBase Database · checked Sep 19, 2026
15	ALLYE	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Intelligent, flexible battery energy storage that solves grid constraints and works wherever power is needed, not just where the grid allows it.” Source: RevenueBase Database · checked Sep 19, 2026
16	Mercia Power	Indirect evidence	Nottingham, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Mercia Power is a utilities company based in Nottingham, United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
17	Constantine Energy Storage	Partial evidence	Godalming, United KingdomHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “Owners of grid-scale energy storage assets.” Source: RevenueBase Database · checked Sep 19, 2026
18	Root-Power	Indirect evidence	Salford, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Root-Power’s mission is to establish itself as one of the largest owner-operators of energy storage systems in the UK with the capabilities to design, build and operate these…” Source: RevenueBase Database · checked Sep 19, 2026
19	Smpnet	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	11 contacts →
	Partial evidence “SMPnet’s Omega technology suite is a core platform for advanced power system optimisation and control across modern energy networks.” Source: RevenueBase Database · checked Sep 19, 2026
20	Alphaess UK	Indirect evidence	Dursley, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “AlphaESS UK is the exclusive partner of AlphaESS, a global leader in advanced battery energy storage solutions.” Source: RevenueBase Database · checked Sep 19, 2026
21	Juggle Energy	Indirect evidence	Braintree, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Juggle Energy provide software and hardware for the renewable energy industry.” Source: RevenueBase Database · checked Sep 19, 2026
22	Alcemi	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “We develop large-scale energy storage projects at key locations, alleviating grid constraints and enabling the transition to renewable energy.” Source: RevenueBase Database · checked Sep 19, 2026
23	Envirotech Energy Solutions	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Envirotech Energy Solutions is a privately owned, commercial developer and operator, specialising in the UK and European energy sector, in particular, capacity for the…” Source: RevenueBase Database · checked Sep 19, 2026
24	Moixa Part Of Lunar Energy	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	7 contacts →
	Indirect evidence “In June 2021, Moixa was acquired by Lunar Energy.” Source: RevenueBase Database · checked Sep 19, 2026
25	Capture Energy	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Capture Energy is Europe’s first battery-backed power company.” Source: RevenueBase Database · checked Sep 19, 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: grid balancing technology 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 grid balancing technology companies.
Partial evidence: Its own public description names part of grid balancing technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid balancing technology 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 72 grid balancing technology companies based in the United Kingdom

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Grid balancing technology companies based in the United Kingdom at a glance

As of Sep 19, 2026

44.7%Verified-email coverage

19.4Average contacts per company

11-50Median size (employees)

41.7%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 72 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 grid balancing technology 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 “grid balancing technology 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 grid balancing technology 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 grid balancing technology 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, 624 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 19, 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.

Grid balancing technology companies by metro

Grid balancing technology companies in London30

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 grid balancing technology 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 grid balancing technology companies are there based in the United Kingdom?

RevenueBase identified 72 grid balancing technology 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?

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

Which city has the most grid balancing technology companies?

London leads with 30 headquartered companies, followed by Cheltenham (2) and Glasgow (2).

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 624 verified decision-maker contacts tracked across these 72 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 19, 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.