Company lists · Data refreshed September 2026

Top 25 Renewable energy research firms based in the United Kingdom

Name: Renewable energy research firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 348 companies tracked

RevenueBase identified 348 company matches for renewable energy research firms associated with the United Kingdom as of September 2026 and tracks 2,794 professional contacts across them, including 1,210 with verified work emails. London is the largest hub.

This list covers company matches for renewable energy research firms 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 17, 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 17, 2026 How this list was built

348Companies

2,794Contacts tracked

1,210Verified emails

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The 25 largest renewable energy research firms based in the United Kingdom

Ranked by team size

Top 25 of 348 company matches for renewable energy research firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Natural Power	Exact match	Castle Douglas, United KingdomHQ recorded Sep 17, 2026	501-1,000	500 contacts →
	Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	OWC	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	185 contacts →
	Exact match “The Renewable Energy Consultants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Wood Thilsted	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	175 contacts →
	Exact match “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Octopus Energy Generation	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	153 contacts →
	Exact match “At Octopus Energy Generation, we’re building green power for the future, from large-scale solar to onshore and offshore wind, and innovative initiatives like the Fan Club.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Everoze	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	51-200	100 contacts →
	Exact match “Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Green CAT Renewables LTD	Exact match	Biggar, United KingdomHQ recorded Sep 17, 2026	51-200	80 contacts →
	Exact match “Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Ecolution Group	Exact match	Trottiscliffe, United KingdomHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	National Energy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	41 contacts →
	Exact match “Founded in 2018 by ambitious entrepreneurs, National Energy is a US-backed, privately funded group active globally across the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Belltown Power	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	11-50	40 contacts →
	Exact match “Belltown Power is an international renewable energy company (IPP).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Nova Innovation	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	11-50	38 contacts →
	Exact match “Nova are specialists in floating solar EPC and consultancy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Pure Renewables	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	11-50	37 contacts →
	Exact match “As commercial and industrial heat pump and solar PV specialists, Pure Renewables are here to help you invest in your energy future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	OUR Footprints LTD	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “Our Footprints combines a small and dedicated group of highly experienced and qualified Engineers/ Project Managers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Open Climate FIX	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	28 contacts →
	Exact match “Our innovative, AI-led, forecasting solutions are accelerating the grid of the future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Nexwell Power	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Part of the Nexwell Group” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Green Energy International Limited	Exact match	Cheadle Hulme, United KingdomHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “Green Energy International Limited (GEIL) operates in the renewable energy market specialising in solar energy development.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Leisure Energy	Exact match	Kidderminster, United KingdomHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Leisure Energy is an award-winning renewable technology company, energy consultancy and principal contractor, who specialise in identifying and delivering energy & sustainability…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Energy Oasis	Exact match	Harrogate, United KingdomHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “Merging energy efficiency and renewable energy technologies to drive cost savings and combat climate change.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Kinekta	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “We’re a team of successful senior renewable energy recruiters, who champion change for a greener future.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Vekta Group	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “With everything we do, we believe in engineering practical solutions to impact the effects of climate change.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Envirolec Smart Energy Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “With over 70 years combined industry experience, Envirolec Smart Energy Solutions has gained vital expertise and experience in a number of Renewable Technologies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	ZLC Energy	Exact match	Liskeard, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “ZLC Energy are multi-technology renewable energy experts and our team is made up of Chartered Engineers, experienced planners and project managers, and proactive problem-solvers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Regener8 Power	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	13 contacts →
	Exact match “Regener8 Power is a sustainable and ethical renewable energy company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	The Greenspan Agency	Exact match	Edinburgh City, United KingdomHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Working across the energy transition, we help our clients develop and operate renewable energy systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Future Energy Partners	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1-10	12 contacts →
	Exact match “ENERGY TRANSITION We provide clean energy options and practical solutions for our clients, and pride ourselves in being a consultancy that is dedicated to delivering today’s…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Katrick Technologies LTD	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Katrick Technologies Ltd is a start-up company that is focused on innovative engineering technologies by performing energy research and development on eco-friendly concepts for a…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “renewable energy research firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 348 renewable energy research firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,210 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy research firms based in the United Kingdom at a glance

As of Sep 17, 2026

43.3%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

21.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

223

11-50

51-200

201-500

501-1,000

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 348 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 “renewable energy research firms” 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 1,210 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 17, 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 “renewable energy research firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy research firms are there based in the United Kingdom?

RevenueBase identified 348 company matches for renewable energy research firms 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?

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

Which city has the most renewable energy research firms?

London leads with 76 company records, followed by Edinburgh (16) and Glasgow (8).

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 1,210 professional contacts with verified work emails tracked across these 348 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 17, 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.