Company lists · Data refreshed September 2026
Top 25 Wind energy storage systems based in the United Kingdom
RevenueBase identified 88 wind energy storage systems headquartered in the United Kingdom as of September 2026 and tracks 1,087 professional contacts across them, including 460 with verified work emails. London is the largest hub.
This list covers wind energy storage systems 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.
The 25 largest wind energy storage systems based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 135 contacts → | ||||
Indirect evidence “A D2Zero Company With a 24-year track record, Powerstar is an industry leader in electrification, specialising in designing and manufacturing cutting-edge power management tech…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 101 contacts → | ||||
Indirect evidence “GivEnergy – No.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 87 contacts → | ||||
Partial evidence “Eku Energy is a specialist, technology-enabled developer dedicated to accelerating the energy transition.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 73 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 48 contacts → | ||||
Strong evidence “Verlume is a leader in intelligent energy management and storage technologies for the energy industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 42 contacts → | ||||
Strong evidence “Voltwise develops, owns and operates flexible energy storage solutions that allow rapid deployment of renewables.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 35 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 contacts → | ||||
Indirect evidence “Power Saving Solutions UK began as an electrical contractor.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 contacts → | ||||
Partial evidence “At Powervault, we are on a mission to pioneer a sustainable energy future.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 18 contacts → | ||||
Strong evidence “Charge Qube by Fellten delivers rapidly deployable battery energy storage and EV charging solutions designed to remove grid limitations and accelerate electrification projects.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Strong evidence “We construct, own and operate large scale, front of meter, energy storage solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Partial evidence “High-power, short-duration energy pulses limit industrial production and inflate infrastructure costs.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Partial evidence “Gravitricity develops long-life underground technologies that help solve the problem of intermittent renewable energy by storing excess energy during periods of low demand and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Partial evidence “Accelerating global energy independence - affordably, reliably and resiliently.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Strong evidence “Intelligent Land Investments Group (ILI Group) works primarily in the Renewable energy and Energy Storage markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Strong evidence “The Heat Vault Company provides a solution to both short-term and long-term energy storage: not just for minutes, but up to decades.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Strong evidence “Alpha House Ltd leads the charge in innovative and sustainable energy storage solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Strong evidence “AlphaESS UK is the exclusive partner of AlphaESS, a global leader in advanced battery energy storage solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Strong evidence “EQONIC Group is a British technology company creating and delivering transformative energy storage technologies to help the world transition towards a zero emissions future.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Partial evidence “We are transforming the way the world thinks about energy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Partial evidence “Capture Energy is Europe’s first battery-backed power company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: wind energy storage systems. 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 wind energy storage systems.
- Partial evidence
- Its own public description names part of wind energy storage systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name wind energy storage systems. 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 wind energy storage systems based in the United Kingdom
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Wind energy storage systems based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
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 wind energy storage systems, 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 “wind energy storage systems”. 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 wind energy storage systems), 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 wind energy storage systems, 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, 460 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.
Wind energy storage systems by metro
- Wind energy storage systems in London25
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 wind energy storage systems, 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 wind energy storage systems are there based in the United Kingdom?
RevenueBase identified 88 wind energy storage systems 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?
Powerstar, headquartered in Sheffield, tops this list with the largest team on record.
Which city has the most wind energy storage systems?
London leads with 25 headquartered companies, followed by Bristol (3) and Nottingham (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 460 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 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.
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