Company lists · Data refreshed September 2026

Top 25 Biorefinery companies based in Ireland

Name: Biorefinery companies based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 47 companies tracked

RevenueBase identified 47 biorefinery companies headquartered in Ireland as of September 2026 and tracks 346 professional contacts across them, including 130 with verified work emails. Dublin is the largest hub.

This list covers biorefinery companies headquartered in Ireland, 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

47Companies

346Contacts tracked

130Verified emails

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The 25 largest biorefinery companies based in Ireland

Ranked by team size

Top 25 of 47 biorefinery companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to biorefinery 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	Celignis Biomass LAB	Indirect evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	60 contacts →
	Indirect evidence “We are a dedicated service provider for the bioeconomy.” Source: RevenueBase Database · checked Sep 19, 2026
2	Stream Bioenergy	Indirect evidence	Co Dublin, IrelandHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Stream BioEnergy develops, owns and operates large-scale biogas projects that utilise anaerobic digestion technology to convert organic materials into renewable energy and…” Source: RevenueBase Database · checked Sep 19, 2026
3	XFUEL	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “Transforming diverse waste into today’s most affordable low-carbon drop-in transport fuels and pioneering tomorrow’s carbon-negative fuels.” Source: RevenueBase Database · checked Sep 19, 2026
4	Greentech Plastics LTD	Indirect evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Our cutting-edge and environmentally-friendly process makes us a leaders in responsible plastics refinement and innovation.” Source: RevenueBase Database · checked Sep 19, 2026
5	College Group	Indirect evidence	Nobber, IrelandHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Ireland's leading bio waste management business.” Source: RevenueBase Database · checked Sep 19, 2026
6	Irish Bioeconomy Foundation	Indirect evidence	Lisheen (moyne), IrelandHQ checked Sep 19, 2026	1-10	10 contacts →
	Indirect evidence “The mission of the Irish Bioeconomy Foundation (IBF) is to promote the conversion of Ireland’s natural land & sea resources to high value products for the development of a…” Source: RevenueBase Database · checked Sep 19, 2026
7	Glenmore Farming Group	Indirect evidence	Ballybofey, IrelandHQ checked Sep 19, 2026	51-200	10 contacts →
	Indirect evidence “Glenmore Farming Group's idyllic estate is the beating heart of a vibrant and modern enterprise.” Source: RevenueBase Database · checked Sep 19, 2026
8	Green Biofuels Ireland Limited	Indirect evidence	Wexford, IrelandHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Facility produces tonnes biodiesel per annum meeting EU Biodiesel Quality Standard (EN 14214/2010) Second generation biodiesel manufactured from biodegradeable wastes with no food…” Source: RevenueBase Database · checked Sep 19, 2026
9	Biasol	Indirect evidence	Tullamore, IrelandHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Niamh and Ruairi Dooley, a sibling founding team, upcycle the leftover grain from Irish craft breweries to create a range of delicious malt tasting foods.” Source: RevenueBase Database · checked Sep 19, 2026
10	Enrich Environmental LTD	Indirect evidence	Kilcock, IrelandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Live the way you want to live but just don’t waste"- David Attenborough.” Source: RevenueBase Database · checked Sep 19, 2026
11	Green Generation	Indirect evidence	Nurney, IrelandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Rural enterprise using anaerobic digestion to convert food and food production waste into renewable biogas, electricity and high quality organic fertiliser.” Source: RevenueBase Database · checked Sep 19, 2026
12	Trifol Resources	Indirect evidence	Thurles, IrelandHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Trifol is a Clean Technology company that has developed proprietary technologies to convert plastic waste into wax.” Source: RevenueBase Database · checked Sep 19, 2026
13	Premier Green Energy	Indirect evidence	Thurles, IrelandHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Premier Green Energy \| Irish Innovators in Advanced Waste-to-Energy & Decarbonisation Pioneering net-zero carbon solutions from right here in Thurles, Co.” Source: RevenueBase Database · checked Sep 19, 2026
14	Clearpower	Indirect evidence	Tallaght, IrelandHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Clearpower is a leading renewable energy solutions provider working across the island of Ireland, in operation since 2002.” Source: RevenueBase Database · checked Sep 19, 2026
15	Greengate Biogas	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	Irish Bioenergy Association Irbea	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “IrBEA is the association representing the bioenergy industry on the island of Ireland.” Source: RevenueBase Database · checked Sep 19, 2026
17	Thorn Environmental LTD	Indirect evidence	Dublin 15, IrelandHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Packaging Producer.” Source: RevenueBase Database · checked Sep 19, 2026
18	Somatech LTD	Indirect evidence	Monaghan, IrelandHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Bringing the ancient art of solid-state fermentation to the food industry, creating sustainable ingredients that improve taste, texture & functionality.” Source: RevenueBase Database · checked Sep 19, 2026
19	Bioconnect Innovation Centre	Indirect evidence	Monaghan, IrelandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “At BioConnect we empower members and partners to use the power of biotechnology to innovate to make new sustainable products.” Source: RevenueBase Database · checked Sep 19, 2026
20	Advanced Molecules	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “At Advanced Molecules Ltd, we are at the forefront of biotechnology, specialising in the pioneering field of biosynthesis to manufacture rare and essential molecules.” Source: RevenueBase Database · checked Sep 19, 2026
21	Niskus Biotec	Indirect evidence	Letterkenny, IrelandHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Niskus helps breweries, distilleries, and food producers turn underused side streams into high-value ingredients and new revenue.” Source: RevenueBase Database · checked Sep 19, 2026
22	Clonbio Group Limited	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	201-500	1 contacts →
	Indirect evidence “The Group is a market leader and large-scale producer of renewable energy and animal nutrition in Europe.” Source: RevenueBase Database · checked Sep 19, 2026
23	Willowwarm	Indirect evidence	Meath, IrelandHQ checked Sep 19, 2026	51-200	1 contacts →
	Indirect evidence “The development of our products was founded with one goal in mind: To become Ireland’s leading supplier of carbon-neutral fuel products.” Source: RevenueBase Database · checked Sep 19, 2026
24	Ormonde Organics LTD	Indirect evidence	Waterford, IrelandHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
25	BAK Biomass	Indirect evidence	Dunleer, IrelandHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “BAK BIOMASS is a young, dynamic company within the wood recycling and biomass industry.” 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: biorefinery 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 biorefinery companies.
Partial evidence: Its own public description names part of biorefinery companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biorefinery 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 47 biorefinery companies based in Ireland

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Biorefinery companies based in Ireland at a glance

As of Sep 19, 2026

37.6%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

14.9%Largest-city concentration · Dublin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 47 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 biorefinery 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 Ireland whose own description of what they do matches “biorefinery 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 biorefinery 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 biorefinery companies, and records with no verified work email. Companies headquartered outside Ireland 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, 130 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 biorefinery 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 biorefinery companies are there based in Ireland?

RevenueBase identified 47 biorefinery companies headquartered in Ireland 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?

Celignis Biomass LAB, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most biorefinery companies?

Dublin leads with 7 headquartered companies, followed by Castletroy (2) and Dunleer (2).

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 130 verified decision-maker contacts tracked across these 47 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.