Company lists · Data refreshed September 2026

Top 25 Environmental consulting firms based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 108 companies tracked

RevenueBase identified 108 company matches for environmental consulting firms associated with Ireland as of September 2026 and tracks 1,724 professional contacts across them, including 692 with verified work emails and 64 with mobile numbers. Dublin is the largest hub.

This list covers company matches for environmental consulting firms associated with Ireland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 2, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 2, 2026 How this list was built

108Companies

1,724Contacts tracked

692Verified emails

64Mobile numbers

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The 25 largest environmental consulting firms based in Ireland

Ranked by team size

Top 25 of 108 company matches for environmental consulting firms based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	MKO	Exact match	Ireland	201-500	210 contacts →
	Exact match “MKO is Ireland’s largest Planning and Environmental consultancy.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	MWP	Exact match	Ireland	51-200	160 contacts →
	Exact match “MWP is a multi-disciplinary Engineering and Environmental Consulting Practice providing a first class service to its clients since it was founded in 1967.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	Ryan Hanley, NOW Stantec	Exact match	Cork, Ireland	51-200	116 contacts →
	Exact match “Ryan Hanley is a leading Engineering and Environmental Consultancy.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	Fehily Timoney And Company	Exact match	Cork, Ireland	51-200	115 contacts →
	Exact match “Fehily Timoney and Company is a Irish civil and environmental, engineering, scientific and planning consultancy specialising in the areas of Sustainable Infrastructure, Planning…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	Ayrton Group	Exact match	Tallaght, Ireland	51-200	75 contacts →
	Exact match “Ayrton Group is a dynamic professional services company dedicated to excellence with a diverse portfolio of businesses ranging from risk management, engineering, recruitment…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	Southern Scientific Services LTD	Exact match	Galway, Ireland	51-200	54 contacts →
	Exact match “We are an Irish owned and operated environmental consultancy and testing facility.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Axiseng	Exact match	Ireland	11-50	47 contacts →
	Exact match “Axiseng Consulting Engineers is a premier independent building services consulting engineering practice, founded in 2004 and celebrating 20 years of excellence in delivering…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	NEO Environmental LTD	Exact match	Naas, Ireland	11-50	46 contacts →
	Exact match “Neo Environmental Ltd is a multidisciplinary consultancy that provide cost effective environmental and technical services to the commercial energy, property, aggregates and…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
9	Malone O'regan Environmental	Exact match	Dublin, Ireland	11-50	36 contacts →
	Exact match “MOR Environmental is a leading environmental consultancy firm with offices in Dublin, Cork and Tullamore.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	Woodrow Sustainable Solutions	Exact match	Ballisodare, Ireland	11-50	28 contacts →
	Exact match “Woodrow is an environmental consultancy based in Sligo.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	Enviroguide A DNV Company	Exact match	Ireland	11-50	23 contacts →
	Exact match “Enviroguide Consulting has an established reputation for delivering environmental and sustainability consultancy services including ecology, environmental impact assessment…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	Minerex Environmental LTD	Exact match	Dublin, Ireland	11-50	22 contacts →
	Exact match “Minerex Environmental Ltd.(MEL) was established in 1994 as an independent Irish consultancy providing environmental services in the hydrogeological and environmental disciplines…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	OMC	Exact match	Galway, Ireland	11-50	22 contacts →
	Exact match “OMC Group, we provide a seamless, multidisciplinary consultancy service, specialising in engineering, design, and compliance solutions for commercial projects.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	Aquafact	Exact match	Galway, Ireland	1-10	20 contacts →
	Exact match “AQUAFACT, part of APEM Group, is an environmental consultancy established in 1986.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	TMS Environment LTD	Exact match	Tallaght, Ireland	11-50	16 contacts →
	Exact match “Specialists in laboratory analysis, monitoring and environmental consultancy” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	Rowan Engineering Consultants	Exact match	Ireland	11-50	15 contacts →
	Exact match “Rowan Engineering Consultants are a team of excellent people that provide two specialist services - forensic engineering and environmental consultancy.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	Flynn Furney Environmental Consultants LTD	Exact match	Kinsale, Ireland	1-10	15 contacts →
	Exact match “Environmental consultancy involved in ecological surveys and design and environmental monitoring services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
18	Cdga Consultants	Exact match	Little Island, Ireland	11-50	15 contacts →
	Exact match “CDGA was founded in 1997.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Speco Sustainability Consultancy	Exact match	Oranmore, Ireland	1-10	14 contacts →
	Exact match “Speco Sustainability Consultancy Ltd.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	ENX	Exact match	Ireland	11-50	14 contacts →
	Exact match “Mechanical, Electrical and Sustainability Consulting Engineers” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Clean Technology Centre, MTU	Exact match	Cork, Ireland	1-10	12 contacts →
	Exact match “The Clean Technology Centre is a not-for profit environmental research and consultancy centre of excellence, based in Munster Technological University.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	Doherty Finegan Kelly LTD	Exact match	Dublin, Ireland	11-50	11 contacts →
	Exact match “Doherty Finegan Kelly (DFK) Consulting Engineers are established Engineering Consultants and provide a comprehensive range of consultancy services specialising in all aspects of…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	Meehan Green, A KEO Company	Exact match	Ireland	11-50	11 contacts →
	Exact match “Meehan Green is a company based in Dublin, Ireland that provides sustainability and green building certifications consulting services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
24	Crocon Engineers LTD	Exact match	Bantry, Ireland	1-10	11 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25	Carbon Complete	Exact match	Galway, Ireland	1-10	11 contacts →
	Exact match “At Carbon Complete, we specialize in guiding businesses through the complexities of environmental regulations with expert CBAM reporting, sustainability consultancy, and…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 108 environmental consulting firms based in Ireland

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Environmental consulting firms based in Ireland at a glance

As of Sep 2, 2026

40.1%Verified-email coverage

3.7%Mobile-number coverage

16.0Average contacts per company

1-10Median size (employees)

16.7%Largest-city concentration · Dublin

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Ireland whose business descriptions match “environmental consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 692 professional contacts with verified work emails across the full matched dataset. 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 2, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting firms are there based in Ireland?

RevenueBase identified 108 company matches for environmental consulting firms associated with Ireland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

MKO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental consulting firms?

Dublin leads with 18 company records, followed by Cork (8) and Galway (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 692 professional contacts with verified work emails tracked across these 108 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 2, 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 SmartSearch, 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.