Company lists · Data refreshed September 2026

Top 25 Renewable companies based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 134 companies tracked

RevenueBase identified 134 renewable companies headquartered in Ireland as of September 2026 and tracks 2,944 professional contacts across them, including 762 with verified work emails. Dublin is the largest hub.

This list covers renewable 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 21, 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 21, 2026 86% judged on-target in blind review

134Companies

2,944Contacts tracked

762Verified emails

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The 25 largest renewable companies based in Ireland

Ranked by team size

Top 25 of 134 renewable companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to renewable 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	SSE Airtricity	Strong evidence	IrelandHQ checked Sep 21, 2026	501-1,000	661 contacts →
	Strong evidence “SSE Airtricity has been harnessing our greatest natural resource for the past 25 years, providing cleaner, renewable energy† for homes and businesses across the country.” Source: RevenueBase Database · checked Sep 21, 2026
2	Amarenco	Strong evidence	Cork, IrelandHQ checked Sep 21, 2026	201-500	255 contacts →
	Strong evidence “Amarenco is one of the leading independent renewable energy producers in Europe.” Source: RevenueBase Database · checked Sep 21, 2026
3	Energia Group	Strong evidence	Blanchardstown, IrelandHQ checked Sep 21, 2026	1,001-5,000	222 contacts →
	Strong evidence “We are a modern integrated energy utility with a focus on renewable technologies supported by flexible and distributed generation.” Source: RevenueBase Database · checked Sep 21, 2026
4	Electroroute	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	51-200	98 contacts →
	Strong evidence “ElectroRoute is an international, renewables focused, energy trading and services company.” Source: RevenueBase Database · checked Sep 21, 2026
5	NTR PLC	Indirect evidence	Sandyford, IrelandHQ checked Sep 21, 2026	11-50	61 contacts →
	Indirect evidence “Established in 1978, NTR is an experienced sustainable infrastructure investor and asset manager driving Europe’s clean energy transition.” Source: RevenueBase Database · checked Sep 21, 2026
6	BNRG	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	11-50	49 contacts →
	Indirect evidence “At BNRG, partnerships are paramount.” Source: RevenueBase Database · checked Sep 21, 2026
7	Power Capital Renewable Energy	Strong evidence	Dublin 2, IrelandHQ checked Sep 21, 2026	11-50	47 contacts →
	Strong evidence “At Power Capital Renewable Energy we are driven by our purpose to contribute to the regeneration of our planet and its people.” Source: RevenueBase Database · checked Sep 21, 2026
8	Simply Blue Energy	Strong evidence	Cork, IrelandHQ checked Sep 21, 2026	51-200	47 contacts →
	Strong evidence “Simply Blue Group, headquartered in Cork, Ireland, is a leading renewable energy developer with a focus on replacing fossil fuels with clean energy.” Source: RevenueBase Database · checked Sep 21, 2026
9	Galetech Group	Strong evidence	Stradone, IrelandHQ checked Sep 21, 2026	51-200	45 contacts →
	Strong evidence “Galetech Group is a leading Irish renewable energy company delivering smart, end-to-end clean energy solutions for clients across wind, solar, energy storage, sustainable…” Source: RevenueBase Database · checked Sep 21, 2026
10	Alternative Energy Ireland	Strong evidence	Dublin 12, IrelandHQ checked Sep 21, 2026	1-10	27 contacts →
	Strong evidence “Renewable Energy installation company specialising in taking a broad view of a companies' energy requirements.” Source: RevenueBase Database · checked Sep 21, 2026
11	DP Energy Group	Indirect evidence	Buttevant, IrelandHQ checked Sep 21, 2026	11-50	22 contacts →
	Indirect evidence “Head quartered in Buttevant, Co.” Source: RevenueBase Database · checked Sep 21, 2026
12	Bord NA Móna	Indirect evidence	Newbridge, IrelandHQ checked Sep 21, 2026	1,001-5,000	22 contacts →
	Indirect evidence “Bord na Móna is a vibrant Irish business based in the Midlands but recognised globally.” Source: RevenueBase Database · checked Sep 21, 2026
13	House 2 Home Retrofit LTD	Indirect evidence	Dublin 12, IrelandHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “House 2 Home has been Ireland's leading 'one stop shop' for energy upgrades since 2013.” Source: RevenueBase Database · checked Sep 21, 2026
14	Sunbird	Indirect evidence	Cork, IrelandHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “Sunbird is a Pan-European and UK solar PV developer led by an experienced team of Commercial and Industrial (C&I) specialists with decades of experience in developing, financing…” Source: RevenueBase Database · checked Sep 21, 2026
15	Arena Capital Partners	Indirect evidence	Dublin 9, IrelandHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Over the past six years, Arena Capital Partners Limited (“Arena”) have become a dominant player in the small to mid-scale wind market in Europe.” Source: RevenueBase Database · checked Sep 21, 2026
16	NRG Panel	Indirect evidence	Castleblayney, IrelandHQ checked Sep 21, 2026	51-200	14 contacts →
	Indirect evidence “NRG Panel are one of Ireland's leading installers of solar panels and air to water heat pumps.” Source: RevenueBase Database · checked Sep 21, 2026
17	ENCON	Strong evidence	Waterford, IrelandHQ checked Sep 21, 2026	11-50	14 contacts →
	Strong evidence “Encon is a sustainable building, retrofit, and renewables company committed to transforming how Ireland builds, renovates, and powers its spaces.” Source: RevenueBase Database · checked Sep 21, 2026
18	Lp3	Strong evidence	Galway, IrelandHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “LP3 is an experienced and dynamic company providing specialist and dedicated services to the Renewable Energy sector across Ireland.” Source: RevenueBase Database · checked Sep 21, 2026
19	Greensource LTD	Strong evidence	Limerick, IrelandHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “Greensource is an Irish renewable energy group that focuses on sustainable power generation.” Source: RevenueBase Database · checked Sep 21, 2026
20	Midsummer Ireland	Strong evidence	Dublin, IrelandHQ checked Sep 21, 2026	1-10	13 contacts →
	Strong evidence “Midsummer Ireland is a leading distributor of renewable energy systems and products in Ireland and Northern Ireland, and provider of cutting-edge solar design software.” Source: RevenueBase Database · checked Sep 21, 2026
21	Copper Coast Renewables	Strong evidence	Waterford, IrelandHQ checked Sep 21, 2026	1-10	12 contacts →
	Strong evidence “We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Source: RevenueBase Database · checked Sep 21, 2026
22	Solar Generation	Strong evidence	Sligo, IrelandHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Our team has over 25 years experience in all aspects of renewable energy with a specific focus on solar photovoltaic installations for home and business.” Source: RevenueBase Database · checked Sep 21, 2026
23	Energyserv Solar	Indirect evidence	New Ross, IrelandHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Energyserv, an award-winning solar PV company based in the sunny south-east of Wexford.” Source: RevenueBase Database · checked Sep 21, 2026
24	Ferm Engineering Ltd, Ireland	Strong evidence	Donegal, IrelandHQ checked Sep 21, 2026	51-200	12 contacts →
	Strong evidence “Established in 2006, Ferm Eng Limited his now positioned as a leader in Mechanical, Electrical and Renewable Energy Services in the North West of Ireland and further afield.” Source: RevenueBase Database · checked Sep 21, 2026
25	Solarstream Limited	Strong evidence	Carlow, IrelandHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Solarstream is dedicated to protecting your renewable energy and solar panel investment and looks always to improve on your energy costs and your lifestyle.” Source: RevenueBase Database · checked Sep 21, 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: renewable 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 renewable companies.
Partial evidence: Its own public description names part of renewable companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable 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 134 renewable companies based in Ireland

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Renewable companies based in Ireland at a glance

As of Sep 21, 2026

25.9%Verified-email coverage

22.0Average contacts per company

11-50Median size (employees)

17.9%Largest-city concentration · Dublin

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 134 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 renewable 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 “renewable 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 renewable 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 renewable 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, 762 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 21, 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 renewable 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 renewable companies are there based in Ireland?

RevenueBase identified 134 renewable 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?

SSE Airtricity, headquartered in Ireland, tops this list with the largest team on record.

Which city has the most renewable companies?

Dublin leads with 24 headquartered companies, followed by Cork (8) and Galway (4).

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 762 verified decision-maker contacts tracked across these 134 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 21, 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.