Company lists · Data refreshed September 2026

Top 25 Biomass energy consultants based in the United Kingdom

Name: Biomass energy consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 434 companies tracked

RevenueBase identified 434 biomass energy consultants headquartered in the United Kingdom as of September 2026 and tracks 6,955 professional contacts across them, including 3,423 with verified work emails. London is the largest hub.

This list covers biomass energy consultants 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 16, 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 16, 2026 86% judged on-target in blind review

434Companies

6,955Contacts tracked

3,423Verified emails

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The 25 largest biomass energy consultants based in the United Kingdom

Ranked by team size

Top 25 of 434 biomass energy consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to biomass energy consultants: 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	Drax Group	Partial evidence	Selby, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,461 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
2	Clarke Energy	Partial evidence	Liverpool, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,049 contacts →
	Partial evidence “Clarke Energy, a Rehlko company, specialises in energy efficient, low carbon and flexible energy systems.” Source: RevenueBase Database · checked Sep 16, 2026
3	Natural Power	Strong evidence	Castle Douglas, United KingdomHQ checked Sep 16, 2026	501-1,000	500 contacts →
	Strong evidence “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Source: RevenueBase Database · checked Sep 16, 2026
4	Fichtner Consulting Engineers LTD	Partial evidence	Stockport, United KingdomHQ checked Sep 16, 2026	51-200	418 contacts →
	Partial evidence “Fichtner is one of the world's leading independent engineering consultancy firms.” Source: RevenueBase Database · checked Sep 16, 2026
5	EIC Partnership	Partial evidence	Redditch, United KingdomHQ checked Sep 16, 2026	51-200	316 contacts →
	Partial evidence “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Source: RevenueBase Database · checked Sep 16, 2026
6	OWC	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	185 contacts →
	Strong evidence “The Renewable Energy Consultants.” Source: RevenueBase Database · checked Sep 16, 2026
7	TNEI	Strong evidence	Manchester, United KingdomHQ checked Sep 16, 2026	51-200	150 contacts →
	Strong evidence “TNEI is an independent specialist energy consultancy providing technical, strategic, environmental and consenting advice to organisations operating within the conventional and…” Source: RevenueBase Database · checked Sep 16, 2026
8	AMBER	Strong evidence	Cardiff, United KingdomHQ checked Sep 16, 2026	51-200	124 contacts →
	Strong evidence “We are an award-winning energy consultancy and certified B Corp™.” Source: RevenueBase Database · checked Sep 16, 2026
9	Seras UK	Indirect evidence	Widnes, United KingdomHQ checked Sep 16, 2026	201-500	114 contacts →
	Indirect evidence “We are Seras, the sustainable fuel specialists.” Source: RevenueBase Database · checked Sep 16, 2026
10	Everoze	Partial evidence	Bristol, United KingdomHQ checked Sep 16, 2026	51-200	100 contacts →
	Partial evidence “Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Source: RevenueBase Database · checked Sep 16, 2026
11	The Green Energy Advice Bureau	Strong evidence	Sunderland, United KingdomHQ checked Sep 16, 2026	51-200	90 contacts →
	Strong evidence “The Green Energy Advice Bureau are a leading independent award-winning UK commercial energy consultancy.” Source: RevenueBase Database · checked Sep 16, 2026
12	Green CAT Renewables LTD	Indirect evidence	Biggar, United KingdomHQ checked Sep 16, 2026	51-200	80 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
13	Omnia Projects	Strong evidence	Northallerton, United KingdomHQ checked Sep 16, 2026	51-200	68 contacts →
	Strong evidence “Omnia Projects are an Engineering Consultancy providing multidisciplinary expertise for energy projects providing a complete service from feasibility and concept development…” Source: RevenueBase Database · checked Sep 16, 2026
14	ECO Logic Partners	Partial evidence	Team Valley, United KingdomHQ checked Sep 16, 2026	11-50	66 contacts →
	Partial evidence “We bring good energy to the table to help you save yours.” Source: RevenueBase Database · checked Sep 16, 2026
15	Ecolution Group	Partial evidence	Trottiscliffe, United KingdomHQ checked Sep 16, 2026	51-200	55 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
16	RJM International	Partial evidence	Winchester, United KingdomHQ checked Sep 16, 2026	11-50	48 contacts →
	Partial evidence “RJM International is an award-winning, engineering business that specialises in resolving complex combustion and emissions-related challenges for global power companies, biomass…” Source: RevenueBase Database · checked Sep 16, 2026
17	Envantage, LOW Carbon And Energy Experts	Partial evidence	Manchester, United KingdomHQ checked Sep 16, 2026	11-50	41 contacts →
	Partial evidence “At Envantage, you will find the brightest and best experts in low carbon and business energy.” Source: RevenueBase Database · checked Sep 16, 2026
18	Hodkinson Consultancy LTD	Strong evidence	Rickmansworth, United KingdomHQ checked Sep 16, 2026	11-50	41 contacts →
	Strong evidence “Hodkinson Consultancy is majority owned by an Employee Ownership Trust (EOT) with a mission to make a difference through energy and environment consultancy.” Source: RevenueBase Database · checked Sep 16, 2026
19	Land Energy	Partial evidence	Helmsley, United KingdomHQ checked Sep 16, 2026	51-200	34 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
20	OUR Footprints LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “Our Footprints combines a small and dedicated group of highly experienced and qualified Engineers/ Project Managers.” Source: RevenueBase Database · checked Sep 16, 2026
21	CEA	Strong evidence	Southampton, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Strong evidence “CEA is a growing consultancy specialising in environmental, consenting and permitting support for energy projects and developments on the land-water interface, with terrestrial…” Source: RevenueBase Database · checked Sep 16, 2026
22	RTS Forestry	Indirect evidence	Crieff, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Indirect evidence “Working from our offices in Crieff, Inverurie and Hexham, RTS Forestry provides professional forest management and contracting services.” Source: RevenueBase Database · checked Sep 16, 2026
23	Myriad Heat And Power Products	Partial evidence	Melton Mowbray, United KingdomHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial evidence “We know about Low carbon heat and power Award Winning Low Carbon system Design / Installation / Servicing If you have a need save energy cost or carbon, regardless of your…” Source: RevenueBase Database · checked Sep 16, 2026
24	SDL Solutions	Partial evidence	Chipping Campden, United KingdomHQ checked Sep 16, 2026	11-50	26 contacts →
	Partial evidence “SDL Solutions offer a 360-degree service in the production and supply of biomass wood fuel around the UK.” Source: RevenueBase Database · checked Sep 16, 2026
25	Decerna	Partial evidence	Cramlington, United KingdomHQ checked Sep 16, 2026	11-50	23 contacts →
	Partial evidence “Decerna is a specialist commercial sustainability consultancy.” Source: RevenueBase Database · checked Sep 16, 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: biomass energy consultants. 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 biomass energy consultants.
Partial evidence: Its own public description names part of biomass energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biomass energy consultants. 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 434 biomass energy consultants based in the United Kingdom

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Biomass energy consultants based in the United Kingdom at a glance

As of Sep 16, 2026

49.2%Verified-email coverage

16.0Average contacts per company

1-10Median size (employees)

16.4%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

287

11-50

105

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 434 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 biomass energy consultants, 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 “biomass energy consultants”. 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 biomass energy consultants), 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 biomass energy consultants, 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, 3,423 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 16, 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.

Biomass energy consultants by metro

Biomass energy consultants in London71

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 biomass energy consultants, 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 biomass energy consultants are there based in the United Kingdom?

RevenueBase identified 434 biomass energy consultants 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?

Drax Group, headquartered in Selby, tops this list with the largest team on record.

Which city has the most biomass energy consultants?

London leads with 71 headquartered companies, followed by Edinburgh (9) and York (7).

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 3,423 verified decision-maker contacts tracked across these 434 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 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 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.