Company lists · Data refreshed September 2026

Top 25 Waste gasification companies based in the United Kingdom

Name: Waste gasification 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 90 companies tracked

RevenueBase identified 90 waste gasification companies headquartered in the United Kingdom as of September 2026 and tracks 878 professional contacts across them, including 361 with verified work emails. London is the largest hub.

This list covers waste gasification 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

90Companies

878Contacts tracked

361Verified emails

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The 25 largest waste gasification companies based in the United Kingdom

Ranked by team size

Top 25 of 90 waste gasification 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 waste gasification 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	Enfinium	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	235 contacts →
	Partial evidence “Every day enfinium transforms waste into energy to help power homes, businesses and the circular economy.” Source: RevenueBase Database · checked Sep 19, 2026
2	Envar Composting Limited	Partial evidence	Woodhurst, United KingdomHQ checked Sep 19, 2026	11-50	49 contacts →
	Partial evidence “Envar Composting is an organic waste and biomass recycling operator specialising in the sustainable and cost-effective processing of the following waste streams on behalf of local…” Source: RevenueBase Database · checked Sep 19, 2026
3	MVV Environment Limited	Partial evidence	Plymouth, United KingdomHQ checked Sep 19, 2026	51-200	48 contacts →
	Partial evidence “MVV Environment Ltd in the UK has 3 sites, Baldovie in Dundee and Devonport in Plymouth, which provide combined heat and power energy from waste solution for non-recyclable waste…” Source: RevenueBase Database · checked Sep 19, 2026
4	O.C.O Technology LTD	Indirect evidence	East Wretham, United KingdomHQ checked Sep 19, 2026	51-200	46 contacts →
	Indirect evidence “O.C.O are a global clean tech company transforming thermal residues which would otherwise go to landfill through an innovative carbon capture process which permanently stores…” Source: RevenueBase Database · checked Sep 19, 2026
5	Ener-G Natural Power RE Branded To Ylem Energy Limited	Indirect evidence	Salford, United KingdomHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “ENER-G Natural Power has rebranded as YLEM ENERGY LIMITED.” Source: RevenueBase Database · checked Sep 19, 2026
6	Tetronics	Indirect evidence	Swindon, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Tetronics is a global leader in the supply of Resource Recovery & Hazardous Material Destruction Systems.” Source: RevenueBase Database · checked Sep 19, 2026
7	Standard GAS Technologies LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “We capture carbon and renewable energy from waste using a low-cost sustainable alternative.” Source: RevenueBase Database · checked Sep 19, 2026
8	GWE Biogas LTD	Partial evidence	Driffield, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “We take food waste from across the UK and convert it into green energy in the form of biogas and electricity.” Source: RevenueBase Database · checked Sep 19, 2026
9	Suiso Limited	Indirect evidence	Sheffield, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Suiso is developing a breakthrough pyrolysis technology which decarbonises hydrocarbon gases - natural gas, LPG, propane or biogas.” Source: RevenueBase Database · checked Sep 19, 2026
10	Pyrogenesys	Partial evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “Integrated energy from waste technology developer, and designer of low carbon renewable products.” Source: RevenueBase Database · checked Sep 19, 2026
11	AIC Group Limited	Partial evidence	Armagh, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “AIC Group designs, manufactures, installs and maintains bespoke thermal treatment and waste to energy systems for a wide range of waste streams, customers and industries across…” Source: RevenueBase Database · checked Sep 19, 2026
12	Antaco	Indirect evidence	Guildford, United KingdomHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Antaco exists to make our world cleaner.” Source: RevenueBase Database · checked Sep 19, 2026
13	Wastefront	Indirect evidence	Sunderland, United KingdomHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Wastefront is building the world’s first end-of-life tyre to Sustainable Aviation Fuel (SAF) platform.” Source: RevenueBase Database · checked Sep 19, 2026
14	Powerhouse Energy Group PLC	Indirect evidence	Bridgend, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Welcome to Powerhouse Energy Group plc.” Source: RevenueBase Database · checked Sep 19, 2026
15	Pyrocore	Partial evidence	Bristol, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Are you confronted with complicated biomass flows, production residues, or waste that are complex and difficult to process?” Source: RevenueBase Database · checked Sep 19, 2026
16	Raft Energy	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “RAFT Energy combines innovative biotechnology, advanced chemistry, and real-time monitoring to turn waste into wealth-starting with cutting‑edge biogas optimisation via ActiCH4R™…” Source: RevenueBase Database · checked Sep 19, 2026
17	COGEN	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “CoGen is an end-to-end developer of technically advanced energy recovery facilities in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
18	Seab Energy Seab Power LTD	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “The food supply chain produces huge amounts of food waste, which must be managed.” Source: RevenueBase Database · checked Sep 19, 2026
19	Re-Gas Energy	Partial evidence	Basingstoke, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Re-Gas Energy Ltd has been established by experienced partners from the bioenergy industry with the purpose of developing and operating Waste-to-Energy & Biomethane projects in…” Source: RevenueBase Database · checked Sep 19, 2026
20	Clinipower	Partial evidence	Avonmouth, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “CliniPower provide safe & reliable treatment and disposal services for a vast range of healthcare, clinical, pharmaceutical and hazardous wastes at our state of the art treatment…” Source: RevenueBase Database · checked Sep 19, 2026
21	GAS Engine Exchange LTD	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “GAS ENGINE EXCHANGE LTD is a business supplies and equipment company based out of United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026
22	Compact Syngas Solutions Limited	Partial evidence	Deeside, United KingdomHQ checked Sep 19, 2026	11-50	5 contacts →
	Partial evidence “Compact Syngas Solutions supply modular gasification technology for the production of hydrogen, power, heat and carbon credits” Source: RevenueBase Database · checked Sep 19, 2026
23	Tumblebug LTD	Partial evidence	Banbury, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “Tumblebug transforms organic waste from environmental burden to business opportunity -at every stage of the farm to fork journey, we support businesses with the transition to a…” Source: RevenueBase Database · checked Sep 19, 2026
24	Wilson Bio-Chemical	Partial evidence	York, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “For waste operators, energy suppliers, environmentally concerned municipalities or larger organisations, Wilson Bio-Chemical provides a guaranteed autoclaving process to convert…” Source: RevenueBase Database · checked Sep 19, 2026
25	Biofactory	Partial evidence	Frome, United KingdomHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “BioFactory is an engineering and design company focusing on waste-to-energy technology, tackling some of the world’s toughest environmental problems by creating low-cost…” 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: waste gasification 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 waste gasification companies.
Partial evidence: Its own public description names part of waste gasification companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name waste gasification 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 90 waste gasification companies based in the United Kingdom

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Waste gasification companies based in the United Kingdom at a glance

As of Sep 19, 2026

41.1%Verified-email coverage

9.8Average contacts per company

11-50Median size (employees)

18.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

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 90 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 waste gasification 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 “waste gasification 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 waste gasification 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 waste gasification 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, 361 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.

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 waste gasification 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 waste gasification companies are there based in the United Kingdom?

RevenueBase identified 90 waste gasification 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?

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

Which city has the most waste gasification companies?

London leads with 17 headquartered companies, followed by Bristol (4) and Manchester (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 361 verified decision-maker contacts tracked across these 90 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.