Company lists · Data refreshed September 2026

Top 25 Off grid energy companies based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 127 companies tracked

RevenueBase identified 127 off grid energy companies headquartered in Ireland as of September 2026 and tracks 1,532 professional contacts across them, including 407 with verified work emails. Dublin is the largest hub.

This list covers off grid energy 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 15, 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 15, 2026 86% judged on-target in blind review

127Companies

1,532Contacts tracked

407Verified emails

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The 25 largest off grid energy companies based in Ireland

Ranked by team size

Top 25 of 127 off grid energy companies based in Ireland, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to off grid energy 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	Partial evidence	IrelandHQ checked Sep 15, 2026	501-1,000	661 contacts →
	Partial 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 15, 2026
2	Activ8 Solar Energies	Indirect evidence	Carrickmacross, IrelandHQ checked Sep 15, 2026	201-500	109 contacts →
	Indirect evidence “As Ireland's solar experts, we've been providing solar technology to both residential and commercial clients for over 18 years.” Source: RevenueBase Database · checked Sep 15, 2026
3	Energywise Ireland	Partial evidence	Cork, IrelandHQ checked Sep 15, 2026	51-200	66 contacts →
	Partial evidence “Energywise Ireland is a trusted SEAI-registered one stop shop that offers a convenient solution for designing, supplying, and installing renewable energy solutions We cater for…” Source: RevenueBase Database · checked Sep 15, 2026
4	Galetech Group	Partial evidence	Stradone, IrelandHQ checked Sep 15, 2026	51-200	45 contacts →
	Partial 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 15, 2026
5	Alternative Energy Ireland	Partial evidence	Dublin 12, IrelandHQ checked Sep 15, 2026	1-10	27 contacts →
	Partial evidence “Renewable Energy installation company specialising in taking a broad view of a companies' energy requirements.” Source: RevenueBase Database · checked Sep 15, 2026
6	Solarsmart Energy LTD	Indirect evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	26 contacts →
	Indirect evidence “SolarSmart enables Irish homeowners, farmers and business owners to generate and harness their own electricity supply from sunlight.” Source: RevenueBase Database · checked Sep 15, 2026
7	Anecto Power Electronics	Partial evidence	Galway, IrelandHQ checked Sep 15, 2026	11-50	14 contacts →
	Partial evidence “Anecto is an Irish company that has been operating in the Power Electronics sector since 1994, with a particular focus on Renewable Energy.” Source: RevenueBase Database · checked Sep 15, 2026
8	Ideal Energy Distribution	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	11-50	14 contacts →
	Partial evidence “Ideal Energy Distribution Ltd is a 100% Irish owned company committed to the Design, Specification, Supply and after sales service of renewable and energy products for both the…” Source: RevenueBase Database · checked Sep 15, 2026
9	NRG Panel	Indirect evidence	Castleblayney, IrelandHQ checked Sep 15, 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 15, 2026
10	ENCON	Indirect evidence	Waterford, IrelandHQ checked Sep 15, 2026	11-50	14 contacts →
	Indirect 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 15, 2026
11	Solgrid LTD	Indirect evidence	Loughrea, IrelandHQ checked Sep 15, 2026	11-50	13 contacts →
	Indirect evidence “Solgrid is a leading Solar PV provider.” Source: RevenueBase Database · checked Sep 15, 2026
12	Greensource LTD	Partial evidence	Limerick, IrelandHQ checked Sep 15, 2026	11-50	13 contacts →
	Partial evidence “Greensource is an Irish renewable energy group that focuses on sustainable power generation.” Source: RevenueBase Database · checked Sep 15, 2026
13	Midsummer Ireland	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	1-10	13 contacts →
	Partial 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 15, 2026
14	Copper Coast Renewables	Partial evidence	Waterford, IrelandHQ checked Sep 15, 2026	1-10	12 contacts →
	Partial 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 15, 2026
15	Solar Generation	Partial evidence	Sligo, IrelandHQ checked Sep 15, 2026	11-50	12 contacts →
	Partial 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 15, 2026
16	Energyserv Solar	Partial evidence	New Ross, IrelandHQ checked Sep 15, 2026	11-50	12 contacts →
	Partial evidence “Energyserv, an award-winning solar PV company based in the sunny south-east of Wexford.” Source: RevenueBase Database · checked Sep 15, 2026
17	Ferm Engineering Ltd, Ireland	Partial evidence	Donegal, IrelandHQ checked Sep 15, 2026	51-200	12 contacts →
	Partial 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 15, 2026
18	Eirteck Energy Partners LTD	Partial evidence	Donegal, IrelandHQ checked Sep 15, 2026	11-50	12 contacts →
	Partial evidence “EIRTECK Energy Partners LTD is a leading Specialist Electrical Contractor operating in a dynamic and growing environment of Wind Turbine Electrical Installation.” Source: RevenueBase Database · checked Sep 15, 2026
19	Grange Solar	Indirect evidence	Navan, IrelandHQ checked Sep 15, 2026	11-50	11 contacts →
	Indirect evidence “Grange Solar are part of Grange Roofing, we specialise in commercial and industrial solar Photovoltaic (PV) systems to assist building owners and tenants in reducing their…” Source: RevenueBase Database · checked Sep 15, 2026
20	Infinite Energy Ireland	Partial evidence	Carlow, IrelandHQ checked Sep 15, 2026	11-50	11 contacts →
	Partial evidence “Welcome to Infinite Energy Ireland, like many other countries, is facing an energy transition.” Source: RevenueBase Database · checked Sep 15, 2026
21	Aquatech Heating Solutions LTD	Partial evidence	Cork, IrelandHQ checked Sep 15, 2026	1-10	10 contacts →
	Partial evidence “Aquatech are wholesale importers of specialist renewable energy systems, sourced from renowned manufacturers all over the world.” Source: RevenueBase Database · checked Sep 15, 2026
22	Acel Energy	Partial evidence	Dublin, IrelandHQ checked Sep 15, 2026	1-10	9 contacts →
	Partial evidence “ACEL Energy are a renewable energy company providing behind the meter bespoke solutions to businesses Specialises in end to end Solar PV, Battery Storage, and Demand Management…” Source: RevenueBase Database · checked Sep 15, 2026
23	Blackwell Energy	Partial evidence	Dublin 6, IrelandHQ checked Sep 15, 2026	51-200	9 contacts →
	Partial evidence “Blackwell Energy design, supply & install home and business energy services such as solar PV, air source heat pumps, retrofit underfloor heating, air conditioning, deep retrofit…” Source: RevenueBase Database · checked Sep 15, 2026
24	Caldor Solar	Partial evidence	Kildare, IrelandHQ checked Sep 15, 2026	11-50	9 contacts →
	Partial evidence “At Caldor Solar, we are dedicated to supplying Ireland with clean, sustainable energy.” Source: RevenueBase Database · checked Sep 15, 2026
25	Lennon Solar	Partial evidence	IrelandHQ checked Sep 15, 2026	11-50	9 contacts →
	Partial evidence “At lennon solar, we are passionate about providing sustainable and affordable energy solutions to our clients.” Source: RevenueBase Database · checked Sep 15, 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: off grid energy 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 off grid energy companies.
Partial evidence: Its own public description names part of off grid energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name off grid energy 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 127 off grid energy companies based in Ireland

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Off grid energy companies based in Ireland at a glance

As of Sep 15, 2026

26.6%Verified-email coverage

12.1Average contacts per company

11-50Median size (employees)

10.2%Largest-city concentration · Dublin

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 127 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 off grid energy 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 “off grid energy 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 off grid energy 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 off grid energy 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, 407 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 15, 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 off grid energy 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 off grid energy companies are there based in Ireland?

RevenueBase identified 127 off grid energy 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 off grid energy companies?

Dublin leads with 13 headquartered companies, followed by Dundalk (5) and Waterford (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 407 verified decision-maker contacts tracked across these 127 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 15, 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.