Company lists · Data verified August 2026

Top 25 Climate consulting firms based in Ireland

Name: Climate consulting firms based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 70 companies tracked

There are 70 climate consulting firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 761 professional contacts across them, including 454 with verified work emails and 39 with mobile numbers. Dublin is the largest hub.

This list covers climate consulting firms headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

70Companies

761Contacts tracked

454Verified emails

39Mobile numbers

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The 25 largest climate consulting firms based in Ireland

Ranked by team size

Top 25 of 70 climate consulting firms based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	MKO	n/a	201-500	210	134
2	Cornwall Insight	n/a	51-200	111	79
3	Sustainable Development Capital, LLP Sdcl	Dublin	11-50	73	50
4	NEO Environmental LTD	Naas	11-50	46	33
5	Enviroguide A DNV Company	n/a	11-50	23	13
6	KSN Horizon	Dublin	11-50	21	13
7	Antaris Consulting	n/a	11-50	20	9
8	Plan Energy	Sligo	11-50	17	14
9	Mosart	n/a	11-50	17	11
10	Passive Dynamics	Dublin	11-50	15	11
11	Sustainabilityworks Ireland	Dublin	1-10	13	11
12	Meehan Green, A KEO Company	n/a	11-50	11	6
13	Carbon Complete	Galway	1-10	11	2
14	Visiongreen Consultancy	Carlow	1-10	8	7
15	ENSEN	Xxx	11-50	7	3
16	Philip Farrelly & CO	Balbriggan	1-10	6	6
17	Fort Energy	Galway	1-10	6	3
18	Climate Matters LTD	Dublin	11-50	5	5
19	Panther Environmental Solutions LTD	n/a	1-10	5	3
20	CYD Connects	Dublin	1-10	5	2
21	Environet Solutions	Dungarvan	1-10	5	2
22	Brale Consulting	Limerick	1-10	5	2
23	Evia Sustainable Real Estate Limited	Dublin	11-50	4	4
24	Toward Zero Carbon TZC	Castlecomer	1-10	4	4
25	Scott Group Smart Buildings	Raheny	11-50	3	3

Showing 25 of 70 climate consulting firms based in Ireland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 454 reachable decision-makers.

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Climate consulting firms based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 17 HQs

39Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Climate consulting firms by metro

Metro	Companies
Climate consulting firms in Dublin	17
Climate consulting firms in Galway	4
Climate consulting firms in Shannon	2
Climate consulting firms in Naas	2
Climate consulting firms in Limerick	2
Climate consulting firms in Cork	2
Climate consulting firms in Maynooth	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “climate consulting firms”, with match quality audited by blind human judging, and headquartered in Ireland.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many climate consulting firms are there based in Ireland?

There are 70 climate consulting firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most climate consulting firms?

Dublin leads with 17 headquartered companies, followed by Galway (4) and Shannon (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 454 verified decision-maker contacts tracked across these 70 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.