Company lists · Data refreshed September 2026

Top 25 Environmental management system consultants based in Ireland

Name: Environmental management system consultants based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 76 companies tracked

RevenueBase identified 76 environmental management system consultants headquartered in Ireland as of September 2026 and tracks 745 professional contacts across them, including 326 with verified work emails. Dublin is the largest hub.

This list covers environmental management system 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 19, 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 19, 2026 86% judged on-target in blind review

76Companies

745Contacts tracked

326Verified emails

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The 25 largest environmental management system consultants based in Ireland

Ranked by team size

Top 25 of 76 environmental management system consultants based in Ireland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental management system 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	Ayrton Group	Partial evidence	Dublin 24, IrelandHQ checked Sep 19, 2026	51-200	75 contacts →
	Partial evidence “Ayrton Group is a dynamic professional services company dedicated to excellence with a diverse portfolio of businesses ranging from risk management, engineering, recruitment…” Source: RevenueBase Database · checked Sep 19, 2026
2	H2 Compliance	Strong evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	56 contacts →
	Strong evidence “H2 Compliance, part of the Landbell Group, is a global consultancy helping businesses navigate the complex world of chemical, environmental, and circular economy compliance.” Source: RevenueBase Database · checked Sep 19, 2026
3	Axiseng	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	47 contacts →
	Indirect evidence “Axiseng Consulting Engineers is a premier independent building services consulting engineering practice, founded in 2004 and celebrating 20 years of excellence in delivering…” Source: RevenueBase Database · checked Sep 19, 2026
4	Malone O'regan Environmental	Strong evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	36 contacts →
	Strong evidence “MOR Environmental is a leading environmental consultancy firm with offices in Dublin, Cork and Tullamore.” Source: RevenueBase Database · checked Sep 19, 2026
5	KSN Energy	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “Complex operations made simple.” Source: RevenueBase Database · checked Sep 19, 2026
6	Woodrow Sustainable Solutions	Strong evidence	Ballisodare, IrelandHQ checked Sep 19, 2026	11-50	28 contacts →
	Strong evidence “Woodrow is an environmental consultancy based in Sligo.” Source: RevenueBase Database · checked Sep 19, 2026
7	Enviroguide A DNV Company	Strong evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong evidence “Enviroguide Consulting has an established reputation for delivering environmental and sustainability consultancy services including ecology, environmental impact assessment…” Source: RevenueBase Database · checked Sep 19, 2026
8	Aquafact	Strong evidence	Galway, IrelandHQ checked Sep 19, 2026	1-10	20 contacts →
	Strong evidence “AQUAFACT, part of APEM Group, is an environmental consultancy established in 1986.” Source: RevenueBase Database · checked Sep 19, 2026
9	Asafe Global	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “ASafe Global is committed to safeguarding your business and serving as your dedicated partner across a spectrum of critical business needs.” Source: RevenueBase Database · checked Sep 19, 2026
10	Antaris Consulting	Strong evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	20 contacts →
	Strong 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 Sep 19, 2026
11	CG Business Consulting	Partial evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	20 contacts →
	Partial evidence “At CG Business Consulting, we are Ireland's leading ISO and Sustainability Consultants.” Source: RevenueBase Database · checked Sep 19, 2026
12	Flynn Furney Environmental Consultants LTD	Strong evidence	Kinsale, IrelandHQ checked Sep 19, 2026	1-10	15 contacts →
	Strong evidence “Environmental consultancy involved in ecological surveys and design and environmental monitoring services.” Source: RevenueBase Database · checked Sep 19, 2026
13	Axis Environmental Services LTD	Strong evidence	Clondrinagh, IrelandHQ checked Sep 19, 2026	1-10	15 contacts →
	Strong evidence “AXIS environmental services provide a professionally tailored environmental consultancy to both the private and public sector.” Source: RevenueBase Database · checked Sep 19, 2026
14	Speco Sustainability Consultancy	Partial evidence	Galway, IrelandHQ checked Sep 19, 2026	1-10	14 contacts →
	Partial evidence “Speco Sustainability Consultancy Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
15	Kelmac Group	Indirect evidence	Limerick, IrelandHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Kelmac Group is a leading conformity and compliance audit, consulting and training body since 1994 with offices in Ireland (Limerick), the U.S (Chicago, IL) and now in the UK…” Source: RevenueBase Database · checked Sep 19, 2026
16	Meehan Green, A KEO Company	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 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 19, 2026
17	Carbon Complete	Strong evidence	Galway, IrelandHQ checked Sep 19, 2026	1-10	11 contacts →
	Strong 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 Sep 19, 2026
18	Environmental Efficiency	Partial evidence	Bray, IrelandHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “Our mission is to help improve our clients’ environmental performance in cost effective and practical ways and as a result build a long term relationship.” Source: RevenueBase Database · checked Sep 19, 2026
19	Visiongreen Consultancy	Indirect evidence	Carlow, IrelandHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “At VisionGreen we are dedicated to making sustainability accessible to businesses of all sizes.” Source: RevenueBase Database · checked Sep 19, 2026
20	Greenstreets Environmental Resources LTD	Indirect evidence	Dublin 8, IrelandHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “For over 20 years, Greenstreets has helped companies manage and report on their Extended Producer Responsibility including packaging, electronic products, batteries, textiles, and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Eazysafe	Indirect evidence	Dublin, IrelandHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Our vision is to create better workplaces by promoting cultures where safety, health and wellness of workers is at the forefront.” Source: RevenueBase Database · checked Sep 19, 2026
22	Coyle Environmental	Partial evidence	Castlerea, IrelandHQ checked Sep 19, 2026	1-10	6 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 Sep 19, 2026
23	The Compliance Team	Indirect evidence	IrelandHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “The Compliance Team is a trusted partner for growing organisations seeking expert-led, integrated compliance support.” Source: RevenueBase Database · checked Sep 19, 2026
24	Integrated Risk Solutions Ireland	Strong evidence	Dublin 12, IrelandHQ checked Sep 19, 2026	11-50	5 contacts →
	Strong evidence “Integrated Risk Solutions is a specialised consultancy focused on delivering health, safety and environmental assurance, compliance, and advice.” Source: RevenueBase Database · checked Sep 19, 2026
25	Edac Environmental Compliance	Strong evidence	Cavan, IrelandHQ checked Sep 19, 2026	11-50	5 contacts →
	Strong evidence “EDAC are an environmental services company who have developed a unique cloud-based Environmental Management Software (EMS) platform that is the central hub for the recording and…” Source: RevenueBase Database · checked Sep 19, 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: environmental management system 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 environmental management system consultants.
Partial evidence: Its own public description names part of environmental management system consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental management system 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 76 environmental management system consultants based in Ireland

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Environmental management system consultants based in Ireland at a glance

As of Sep 19, 2026

43.8%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

11.8%Largest-city concentration · Dublin

Sep 19, 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 76 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 environmental management system 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 “environmental management system 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 environmental management system 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 environmental management system 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, 326 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 19, 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 environmental management system 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 environmental management system consultants are there based in Ireland?

RevenueBase identified 76 environmental management system 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?

Ayrton Group, headquartered in Tallaght, tops this list with the largest team on record.

Which city has the most environmental management system consultants?

Dublin leads with 9 headquartered companies, followed by Cork (3) and Galway (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 326 verified decision-maker contacts tracked across these 76 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 19, 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.