Company lists · Data refreshed September 2026

Top 25 Clean energy consultants based in Ireland

Name: Clean energy consultants based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 119 companies tracked

RevenueBase identified 119 clean energy consultants headquartered in Ireland as of September 2026 and tracks 978 professional contacts across them, including 465 with verified work emails. Dublin is the largest hub.

This list covers clean energy consultants 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 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

119Companies

978Contacts tracked

465Verified emails

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The 25 largest clean energy consultants based in Ireland

Ranked by team size

Top 25 of 119 clean energy consultants based in Ireland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean 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	Landell Mills	Partial evidence	Blackrock, IrelandHQ checked Sep 16, 2026	51-200	197 contacts →
	Partial evidence “Leading international development consultancy Providing communities, economies and environments with the means and opportunities to grow Founded in 1975, Landell Mills is a…” Source: RevenueBase Database · checked Sep 16, 2026
2	SE Systems	Partial evidence	Cork, IrelandHQ checked Sep 16, 2026	51-200	59 contacts →
	Partial evidence “SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Source: RevenueBase Database · checked Sep 16, 2026
3	Verdé Environmental Group	Partial evidence	Kilcoole, IrelandHQ checked Sep 16, 2026	51-200	47 contacts →
	Partial evidence “Verdé are an innovative Irish company that have been delivering technology led environmental, renewable energy and sustainability solutions for over 22 years.” Source: RevenueBase Database · checked Sep 16, 2026
4	Galetech Group	Strong evidence	Stradone, IrelandHQ checked Sep 16, 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 16, 2026
5	Climeaction	Indirect evidence	Cork, IrelandHQ checked Sep 16, 2026	11-50	42 contacts →
	Indirect evidence “Climeaction Cork & Boston \| B Corp Certified \| ISO 9001 & Accredited Climeaction is an industrial decarbonisation and carbon intelligence company.” Source: RevenueBase Database · checked Sep 16, 2026
6	Alternative Energy Ireland	Partial evidence	Dublin 12, IrelandHQ checked Sep 16, 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 16, 2026
7	Lawler Sustainability	Partial evidence	Kilkenny, IrelandHQ checked Sep 16, 2026	11-50	24 contacts →
	Partial evidence “Helping Businesses Cut Energy Costs by up to 50% & Accelerate Their Journey to Net Zero!” Source: RevenueBase Database · checked Sep 16, 2026
8	Enviroguide A DNV Company	Partial evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Enviroguide Consulting has an established reputation for delivering environmental and sustainability consultancy services including ecology, environmental impact assessment…” Source: RevenueBase Database · checked Sep 16, 2026
9	Plan Energy	Partial evidence	Sligo, IrelandHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Welcome to Plan Energy, your trusted partner in decarbonisation and renewable energy.” Source: RevenueBase Database · checked Sep 16, 2026
10	Mosart	Partial evidence	IrelandHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Providing expert design, energy consulting & training in high performance buildings since 1993.” Source: RevenueBase Database · checked Sep 16, 2026
11	Azorom	Partial evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “AZOROM provides advisory services to organisations operating in the energy sector in Ireland and Worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
12	Passive Dynamics	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Passive Dynamics was set up in 2020 with a vision that expert knowledge and passion can empower.” Source: RevenueBase Database · checked Sep 16, 2026
13	Digren Energy	Strong evidence	Co. Dublin, IrelandHQ checked Sep 16, 2026	11-50	14 contacts →
	Strong evidence “We are an energy management consultancy.” Source: RevenueBase Database · checked Sep 16, 2026
14	Sustainabilityworks Ireland	Partial evidence	Dublin, IrelandHQ checked Sep 16, 2026	1-10	14 contacts →
	Partial evidence “SustainabilityWorks is a consultancy on a mission to accelerate climate action and sustainability in Ireland.” Source: RevenueBase Database · checked Sep 16, 2026
15	NRG Panel	Indirect evidence	Castleblayney, IrelandHQ checked Sep 16, 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 16, 2026
16	Lp3	Partial evidence	Galway, IrelandHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial 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 16, 2026
17	ENX	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Mechanical, Electrical and Sustainability Consulting Engineers” Source: RevenueBase Database · checked Sep 16, 2026
18	Copper Coast Renewables	Partial evidence	Waterford, IrelandHQ checked Sep 16, 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 16, 2026
19	JAK Consulting Engineers	Strong evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	12 contacts →
	Strong evidence “JAK Consulting Engineers is a leading multi-award winning MEP design and sustainable energy consultancy firm in Ireland, UK, Middle East and Asia.” Source: RevenueBase Database · checked Sep 16, 2026
20	Solar Generation	Partial evidence	Sligo, IrelandHQ checked Sep 16, 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 16, 2026
21	Kore Energy	Strong evidence	Donabate, IrelandHQ checked Sep 16, 2026	11-50	11 contacts →
	Strong evidence “Kore Energy is Ireland’s market leader in energy consultancy for large energy users.” Source: RevenueBase Database · checked Sep 16, 2026
22	Nusolas Energy	Strong evidence	Shannon, IrelandHQ checked Sep 16, 2026	51-200	11 contacts →
	Strong evidence “NuSolas Energy is helping homes and businesses across Ireland transition to clean energy with solar panels and heat pumps.” Source: RevenueBase Database · checked Sep 16, 2026
23	Meehan Green, A KEO Company	Indirect evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “Meehan Green is a company based in Dublin, Ireland that provides sustainability and green building certifications consulting services.” Source: RevenueBase Database · checked Sep 16, 2026
24	Crocon Engineers LTD	Indirect evidence	Bantry, IrelandHQ checked Sep 16, 2026	1-10	11 contacts →
	Indirect evidence “Crocon Engineers Ltd, can provide advice, across a wide-ranging spectrum of projects in which your business may be involved, now or in the future.” Source: RevenueBase Database · checked Sep 16, 2026
25	Danu Energy Consulting LTD	Partial evidence	Dublin, IrelandHQ checked Sep 16, 2026	11-50	10 contacts →
	Partial evidence “Danu Energy Consulting provides project management and engineering services to assist in the development, construction and trading of renewable energy and wider sustainability…” 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: clean 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 clean energy consultants.
Partial evidence: Its own public description names part of clean energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean 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 119 clean energy consultants based in Ireland

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Clean energy consultants based in Ireland at a glance

As of Sep 16, 2026

47.5%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

21.0%Largest-city concentration · Dublin

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 119 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 clean 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 Ireland whose own description of what they do matches “clean 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 clean 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 clean energy consultants, 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, 465 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.

Clean energy consultants by metro

Clean energy consultants in Dublin25

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 clean 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 clean energy consultants are there based in Ireland?

RevenueBase identified 119 clean energy consultants 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?

Landell Mills, headquartered in Blackrock, tops this list with the largest team on record.

Which city has the most clean energy consultants?

Dublin leads with 25 headquartered companies, followed by Cork (7) and Galway (5).

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 465 verified decision-maker contacts tracked across these 119 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.