Company lists · Data refreshed September 2026

Top 25 Biomass energy investment firms based in the United Kingdom

RevenueBase identified 270 company matches for biomass energy investment firms associated with the United Kingdom as of September 2026 and tracks 4,073 professional contacts across them, including 2,026 with verified work emails. London is the largest hub.

This list covers company matches for biomass energy investment 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 27, 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 27, 2026 How this list was built
270Companies
4,073Contacts tracked
2,026Verified emails
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The 25 largest biomass energy investment firms based in the United Kingdom

Ranked by team size
Top 25 of 270 company matches for biomass energy investment firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchSelby, United KingdomHQ recorded Sep 27, 20261,001-5,0001,461 contacts →

Exact match

“Drax is enabling a zero carbon, lower cost energy future Drax Group is a renewable and flexible generation energy company engaged in renewable power generation, the production of…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-500153 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 27, 2026 · View company records in RevenueBase
3Exact matchShepton Mallet, United KingdomHQ recorded Sep 27, 202651-200148 contacts →

Exact match

“Clean energy, powered with purpose.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchWidnes, United KingdomHQ recorded Sep 27, 2026201-500114 contacts →

Exact match

“We are Seras, the sustainable fuel specialists.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-50083 contacts →

Exact match

“NextEnergy Capital was founded in 2007 to become the leading specialist investment and asset manager in the solar sector.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchEdinburgh, United KingdomHQ recorded Sep 27, 202651-20065 contacts →

Exact match

“Red Rock Renewables is an investor, owner, operator and developer of renewable energy projects.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20065 contacts →

Exact match

“Nexta Capital Partners is a holding company which originates, develops, finances builds and operates renewable infrastructure assets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBuntingford, United KingdomHQ recorded Sep 27, 202651-20063 contacts →

Exact match

“Bio Capital owns and operates Anaerobic Digestion plants in the UK with a growing and diverse portfolio.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBristol, United KingdomHQ recorded Sep 27, 202611-5058 contacts →

Exact match

“Aura Power is a renewable energy investor, developer and adviser.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20051 contacts →

Exact match

“We invest in the development, construction, and long-term ownership of solar, onshore wind and battery storage projects, enabling the energy transition and driving stable…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5047 contacts →

Exact match

“Founded in 2009, Bluefield Partners LLP is a European renewables specialist, investing across the full lifecycle of greenfield and brownfield opportunities in solar, wind, and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5046 contacts →

Exact match

“Gore Street Capital was formed in 2015 as a global platform to acquire and manage renewable energy assets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20041 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 27, 2026 · View company records in RevenueBase
14Exact matchKings Cross, United KingdomHQ recorded Sep 27, 202611-5041 contacts →

Exact match

“Greenfield specialise in the investment, development and delivery of sustainable and renewable-led infrastructure projects.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5039 contacts →

Exact match

“Bluewater is a specialist international private equity firm focused on the middle-market energy sector.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchEdinburgh, United KingdomHQ recorded Sep 27, 202611-5038 contacts →

Exact match

“Brockwell Energy is a leading multi-technology Independent Power Producer (IPP), dedicated to renewable energy infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchHelmsley, United KingdomHQ recorded Sep 27, 202651-20034 contacts →

Exact match

“Land Energy’s mission is to make high-quality, sustainable, home-grown products for heating, agriculture, gardening and animal care the natural first choice for UK homes and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5033 contacts →

Exact match

“Established in 2008, Pioneer is an independent, sustainable infrastructure investment firm.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchCrieff, United KingdomHQ recorded Sep 27, 202611-5032 contacts →

Exact match

“Working from our offices in Crieff, Inverurie and Hexham, RTS Forestry provides professional forest management and contracting services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5032 contacts →

Exact match

“Asper Investment Management is a leading specialist investment management firm focused on building large-scale sustainable energy platforms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchEast Wellow, United KingdomHQ recorded Sep 27, 2026201-50029 contacts →

Exact match

“Hive Energy is on a mission to save the planet.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchBournemouth, United KingdomHQ recorded Sep 27, 202611-5028 contacts →

Exact match

“Owned by funds advised by Octopus Energy Generation, one of Europe’s largest renewable energy investors currently managing renewable assets totalling more than £5bn, we are…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchChipping Campden, United KingdomHQ recorded Sep 27, 202611-5026 contacts →

Exact match

“SDL Solutions offer a 360-degree service in the production and supply of biomass wood fuel around the UK.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchBourne, United KingdomHQ recorded Sep 27, 202611-5026 contacts →

Exact match

“Larkfleet Group is now a part of Phoenix Sustainable Investments - an award-winning developer of sustainable energy projects.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-5024 contacts →

Exact match

“At AGR Power, we believe the future of business depends on the strength of the systems that power it.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 270 biomass energy investment firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,026 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Biomass energy investment firms based in the United Kingdom at a glance

As of Sep 27, 2026
49.7%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
48.5%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
151
11-50
90
51-200
16
201-500
9
501-1,000
1
1,001-5,000
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 270 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 “biomass energy investment 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 2,026 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 27, 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 “biomass energy investment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many biomass energy investment firms are there based in the United Kingdom?

RevenueBase identified 270 company matches for biomass energy investment 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?

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

Which city has the most biomass energy investment firms?

London leads with 131 company records, followed by Bristol (4) and Birmingham (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 2,026 professional contacts with verified work emails tracked across these 270 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 270 biomass energy investment firms based in the United Kingdom. Start with a free account, no credit card.

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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.