Company lists · Data refreshed August 2026

Top 25 Climate change consulting firms based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 77 companies tracked

RevenueBase identified 77 climate change consulting firms headquartered in Ireland as of August 2026 and tracks 787 professional contacts across them, including 483 with verified work emails and 39 with mobile numbers. Dublin is the largest hub.

This list covers climate change consulting firms 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

77Companies

787Contacts tracked

483Verified emails

39Mobile numbers

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The 25 largest climate change consulting firms based in Ireland

Ranked by team size

Top 25 of 77 climate change consulting firms based in Ireland, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to climate change consulting firms: 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	MKO	Indirect evidence	Ireland	201-500	210 contacts →
	Indirect evidence “MKO is Ireland’s largest Planning and Environmental consultancy.” Source: RevenueBase Database · checked Aug 31, 2026
2	Cornwall Insight	Indirect evidence	Ireland	51-200	111 contacts →
	Indirect evidence “Cornwall Insight are trusted independent experts in the energy industry.” Source: RevenueBase Database · checked Aug 31, 2026
3	Sustainable Development Capital, LLP Sdcl	Indirect evidence	Dublin, Ireland	11-50	73 contacts →
	Indirect evidence “Sustainable Development Capital LLP (“SDCL”) is a multi-national investment and financial advisory firm, which specialises in environmental infrastructure.” Source: RevenueBase Database · checked Aug 31, 2026
4	NEO Environmental LTD	Indirect evidence	Naas, Ireland	11-50	46 contacts →
	Indirect evidence “Neo Environmental Ltd is a multidisciplinary consultancy that provide cost effective environmental and technical services to the commercial energy, property, aggregates and…” Source: RevenueBase Database · checked Aug 31, 2026
5	Lbspartners	Partial evidence	Limerick, Ireland	11-50	27 contacts →
	Partial evidence “Founded in 2002, LBSPartners is a business consultancy that provides leadership and operational excellence training that specialises in the areas of digitalisation, climate…” Source: RevenueBase Database · checked Aug 31, 2026
6	Enviroguide A DNV Company	Partial evidence	Ireland	11-50	23 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 Aug 31, 2026
7	KSN Horizon	Strong evidence	Dublin, Ireland	11-50	21 contacts →
	Strong evidence “Climate change, ESG requirements and the transition to a low-carbon economy are reshaping the future of real estate.” Source: RevenueBase Database · checked Aug 31, 2026
8	Antaris Consulting	Partial evidence	Ireland	11-50	20 contacts →
	Partial evidence “Founded in 1994, Antaris is an independent, Irish-owned consultancy and training firm with expertise in ISO Management Systems, Environment, Energy, Sustainability and Climate…” Source: RevenueBase Database · checked Aug 31, 2026
9	Plan Energy	Indirect evidence	Sligo, Ireland	11-50	17 contacts →
	Indirect evidence “Welcome to Plan Energy, your trusted partner in decarbonisation and renewable energy.” Source: RevenueBase Database · checked Aug 31, 2026
10	Mosart	Partial evidence	Ireland	11-50	17 contacts →
	Partial evidence “Providing expert design, energy consulting & training in high performance buildings since 1993.” Source: RevenueBase Database · checked Aug 31, 2026
11	Passive Dynamics	Indirect evidence	Dublin, Ireland	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 Aug 31, 2026
12	Sustainabilityworks Ireland	Partial evidence	Dublin, Ireland	1-10	13 contacts →
	Partial evidence “SustainabilityWorks is a consultancy on a mission to accelerate climate action and sustainability in Ireland.” Source: RevenueBase Database · checked Aug 31, 2026
13	Meehan Green, A KEO Company	Partial evidence	Ireland	11-50	11 contacts →
	Partial evidence “Meehan Green is a company based in Dublin, Ireland that provides sustainability and green building certifications consulting services.” Source: RevenueBase Database · checked Aug 31, 2026
14	Carbon Complete	Indirect evidence	Galway, Ireland	1-10	11 contacts →
	Indirect evidence “At Carbon Complete, we specialize in guiding businesses through the complexities of environmental regulations with expert CBAM reporting, sustainability consultancy, and…” Source: RevenueBase Database · checked Aug 31, 2026
15	Byrne Ó Cléirigh	Indirect evidence	Ireland	11-50	10 contacts →
	Indirect evidence “Byrne Ó Cléirigh is a firm of professional engineers and management consultants.” Source: RevenueBase Database · checked Aug 31, 2026
16	Visiongreen Consultancy	Indirect evidence	Carlow, Ireland	1-10	8 contacts →
	Indirect evidence “At VisionGreen we are dedicated to making sustainability accessible to businesses of all sizes.” Source: RevenueBase Database · checked Aug 31, 2026
17	Coyle Environmental	Partial evidence	Ireland	1-10	7 contacts →
	Partial evidence “We specialise in providing Environmental Monitoring and Consulting services, operating nationwide from our base in the West of Ireland.” Source: RevenueBase Database · checked Aug 31, 2026
18	ENSEN	Indirect evidence	Xxx, Ireland	11-50	7 contacts →
	Indirect evidence “Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Source: RevenueBase Database · checked Aug 31, 2026
19	Philip Farrelly & CO	Indirect evidence	Balbriggan, Ireland	1-10	6 contacts →
	Indirect evidence “Established in 1977, Philip Farrelly & Company has been dedicated to excellence in client services, analytical thinking, and adaptive solutions.” Source: RevenueBase Database · checked Aug 31, 2026
20	Mantra Strategy	Indirect evidence	Dublin, Ireland	1-10	6 contacts →
	Indirect evidence “Mantra Strategy is the Impact Creation Consultancy, making strides to make organisations have a more positive impact on the world (through purpose alignment, better workplaces for…” Source: RevenueBase Database · checked Aug 31, 2026
21	Fort Energy	Partial evidence	Galway, Ireland	1-10	6 contacts →
	Partial evidence “Fort Energy is a specialist energy consulting firm to the SME, commercial and government sectors.” Source: RevenueBase Database · checked Aug 31, 2026
22	Climate Matters LTD	Partial evidence	Dublin, Ireland	11-50	5 contacts →
	Partial evidence “Climate Matters Ltd was founded in 2019 on the back of witnessing the transition in the energy sector over the previous decade.” Source: RevenueBase Database · checked Aug 31, 2026
23	Integrated Risk Solutions Ireland	Indirect evidence	Dublin, Ireland	11-50	5 contacts →
	Indirect evidence “Integrated Risk Solutions is a specialised consultancy focused on delivering health, safety and environmental assurance, compliance, and advice.” Source: RevenueBase Database · checked Aug 31, 2026
24	Panther Environmental Solutions LTD	Indirect evidence	Ireland	1-10	5 contacts →
	Indirect evidence “Panther Environmental Solutions Ltd is an Environmental Consultancy Company providing expert environmental advice to the Food, Manufacturing and Pharmaceutical Industries.” Source: RevenueBase Database · checked Aug 31, 2026
25	CYD Connects	Indirect evidence	Dublin, Ireland	1-10	5 contacts →
	Indirect evidence “Cyd Connects is a woman-led sustainability consultancy based in London and Dublin and we’re here to help your business to become a force for good.” Source: RevenueBase Database · checked Aug 31, 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: climate change consulting firms. 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 climate change consulting firms.
Partial evidence: Its own public description names part of climate change consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate change consulting firms. 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 77 climate change consulting firms based in Ireland

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Climate change consulting firms based in Ireland at a glance

As of Aug 31, 2026

61.4%Verified-email coverage

5.0%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

29.9%Largest-city concentration · Dublin

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 climate change consulting firms, 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 “climate change consulting firms”. 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 climate change consulting firms), 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 climate change consulting firms, 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, 483 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 August 31, 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 climate change consulting firms, 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 climate change consulting firms are there based in Ireland?

RevenueBase identified 77 climate change consulting firms headquartered in Ireland as of August 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?

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

Which city has the most climate change consulting firms?

Dublin leads with 23 headquartered companies, followed by Galway (4) and Limerick (3).

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 483 verified decision-maker contacts tracked across these 77 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.