Company lists · Data refreshed September 2026
Top 17 Environmental consultancy firms based in Dublin, Ireland
RevenueBase identified 35 environmental consultancy firms headquartered in Dublin, Ireland as of September 2026 and tracks 760 professional contacts across them, including 506 with verified work emails and 35 with mobile numbers. Dublin is the largest hub.
This list covers environmental consultancy firms headquartered in Dublin, 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 12, 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.
The 17 largest environmental consultancy firms based in Dublin, Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 241 contacts → | ||||
Indirect evidence “OCSC is an established International Multidisciplinary Consulting Engineering & Project Management Practice.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 178 contacts → | ||||
Partial evidence “DBFL is a fully Irish-owned firm specializing in the planning, engineering design and delivery within the property, infrastructure, environmental & energy sectors.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 36 contacts → | ||||
Strong evidence “MOR Environmental is a leading environmental consultancy firm with offices in Dublin, Cork and Tullamore.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 21 contacts → | ||||
Indirect evidence “Climate change, ESG requirements and the transition to a low-carbon economy are reshaping the future of real estate.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Partial 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 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “Doherty Finegan Kelly (DFK) Consulting Engineers are established Engineering Consultants and provide a comprehensive range of consultancy services specialising in all aspects of…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 contacts → | ||||
Partial evidence “CAAS is one of Ireland’s longest established providers of planning and environmental advice to public sector bodies and planning authorities.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Strong evidence “Compliance Consultants providing a range of built environment advisory services.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Indirect evidence “Mable Consulting Engineers was founded by Barry McGinn to provide specialist engineering services to a broad range of clients in both the public and private sectors.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect 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 Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “At Evia, we merge our property expertise with a deep commitment to environmental leadership, ensuring the protection and enhancement of real estate assets.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial evidence “FitzGerald Ecology provides botanical and ecological consultancy services for a range of clients and project types across the Republic of Ireland.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1 contacts → | ||||
Partial evidence “Denyer Ecology is a botanical consultancy based in Dublin.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1 contacts → | ||||
Indirect evidence “We are change agents, sustainability accountants and LEAN experts - we address the needs of individual companies to design a tailored and focused sustainability strategy, setting…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
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 consultancy 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 environmental consultancy firms.
- Partial evidence
- Its own public description names part of environmental consultancy firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental consultancy 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 17 of 35 environmental consultancy firms based in Dublin, Ireland
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 506 reachable decision-makers.
Free signup · no credit card
Environmental consultancy firms based in Dublin, Ireland at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 14.0dCompany record updated
Median 57.0dHow 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 consultancy 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 Dublin, Ireland whose own description of what they do matches “environmental consultancy 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 environmental consultancy 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 environmental consultancy firms, and records with no verified work email. Companies headquartered outside Dublin 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, 506 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 12, 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.
Environmental consultancy firms by metro in Ireland
- Environmental consultancy firms in Dublin33
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 consultancy 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 environmental consultancy firms are there based in Dublin, Ireland?
RevenueBase identified 35 environmental consultancy firms headquartered in Dublin, 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?
O'connor Sutton Cronin, headquartered in Dublin, tops this list with the largest team on record.
Which city has the most environmental consultancy firms?
Dublin leads with 33 headquartered companies, followed by Cork (13) and Galway (9).
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 506 verified decision-maker contacts tracked across these 35 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 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 35 environmental consultancy firms based in Dublin, Ireland. Start with a free account, no credit card.
Download this list →Related lists
Environmental consultancy firms by geography
- Environmental consultancy firms based in the United States
- Environmental consultancy firms based in Brazil
- Environmental consultancy firms based in the United Kingdom
- Environmental consultancy firms based in France
- Environmental consultancy firms based in Italy
- Environmental consultancy firms based in Australia
- Environmental consultancy firms based in Canada
- Environmental consultancy firms based in Spain
- Environmental consultancy firms based in Germany
- Environmental consultancy firms based in the Netherlands
- Environmental consultancy firms based in Mexico
- Environmental consultancy firms based in South Africa
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Environmental consultancy firms based in the United States
- Environmental consultancy firms based in Brazil
- Environmental consultancy firms based in the United Kingdom
- Environmental consultancy firms based in France
- Environmental consultancy firms based in Italy
- Environmental consultancy firms based in Australia