Company lists · Data refreshed September 2026

Top 25 Geological consultants based in Ireland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 161 companies tracked

RevenueBase identified 161 geological consultants headquartered in Ireland as of September 2026 and tracks 2,304 professional contacts across them, including 1,113 with verified work emails. Dublin is the largest hub.

This list covers geological 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 21, 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 21, 2026 86% judged on-target in blind review

161Companies

2,304Contacts tracked

1,113Verified emails

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The 25 largest geological consultants based in Ireland

Ranked by team size

Top 25 of 161 geological consultants based in Ireland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to geological 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	MKO	Partial evidence	Galway, IrelandHQ checked Sep 21, 2026	201-500	210 contacts →
	Partial evidence “MKO is Ireland’s largest Planning and Environmental consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
2	MWP	Indirect evidence	Blackrock, IrelandHQ checked Sep 21, 2026	51-200	160 contacts →
	Indirect evidence “MWP is a multi-disciplinary Engineering and Environmental Consulting Practice providing a first class service to its clients since it was founded in 1967.” Source: RevenueBase Database · checked Sep 21, 2026
3	Gavin & Doherty Geosolutions GDG	Indirect evidence	Dublin 14, IrelandHQ checked Sep 21, 2026	51-200	122 contacts →
	Indirect evidence “At Gavin & Doherty Geosolutions (GDG), we are experts at finding innovative engineering solutions to support some of the most challenging offshore wind, marine and infrastructure…” Source: RevenueBase Database · checked Sep 21, 2026
4	Fehily Timoney And Company	Partial evidence	Cork, IrelandHQ checked Sep 21, 2026	51-200	116 contacts →
	Partial evidence “Fehily Timoney and Company is a Irish civil and environmental, engineering, scientific and planning consultancy specialising in the areas of Sustainable Infrastructure, Planning…” Source: RevenueBase Database · checked Sep 21, 2026
5	Ryan Hanley, NOW Stantec	Partial evidence	Galway, IrelandHQ checked Sep 21, 2026	51-200	98 contacts →
	Partial evidence “Ryan Hanley is a leading Engineering and Environmental Consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
6	Igsl Limited	Indirect evidence	Naas, IrelandHQ checked Sep 21, 2026	51-200	93 contacts →
	Indirect evidence “IGSL is one of Ireland’s leading ground investigation and geotechnical companies.” Source: RevenueBase Database · checked Sep 21, 2026
7	Mitchell Mcdermott	Partial evidence	Dublin 4, IrelandHQ checked Sep 21, 2026	51-200	77 contacts →
	Partial evidence “Mitchell McDermott is an independent firm of Construction Consultants founded by Paul Mitchell and Anthony McDermott in 2015.” Source: RevenueBase Database · checked Sep 21, 2026
8	AWN Consulting LTD	Partial evidence	Dublin, IrelandHQ checked Sep 21, 2026	51-200	74 contacts →
	Partial evidence “AWN Consulting is a multidisciplinary consultancy offering specialist design advice in respect of a wide range of engineering and environmental disciplines.” Source: RevenueBase Database · checked Sep 21, 2026
9	IAC Archaeology	Indirect evidence	Kilcoole, IrelandHQ checked Sep 21, 2026	51-200	70 contacts →
	Indirect evidence “Established since 1998, IAC Archaeology is a multidisciplinary archaeological practice.” Source: RevenueBase Database · checked Sep 21, 2026
10	Archaeological Management Solutions AMS	Partial evidence	Kilrush, IrelandHQ checked Sep 21, 2026	51-200	61 contacts →
	Partial evidence “AMS is an archaeological and heritage consultancy specialising in early heritage assessment works and archaeological project management.” Source: RevenueBase Database · checked Sep 21, 2026
11	Green Rebel	Indirect evidence	Cork, IrelandHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “We are committed to helping clients unlock the benefits of cutting-edge geo-data in support of the development of offshore energy.” Source: RevenueBase Database · checked Sep 21, 2026
12	Eireng Consulting Engineers LTD	Indirect evidence	Blackrock, IrelandHQ checked Sep 21, 2026	11-50	38 contacts →
	Indirect evidence “EirEng Consulting Engineers is a firm of highly experienced and motivated Civil and Structural Design Engineers with offices in Ireland and the UK, dedicated to providing cutting…” Source: RevenueBase Database · checked Sep 21, 2026
13	Malone O'regan Environmental	Partial evidence	Dublin, IrelandHQ checked Sep 21, 2026	11-50	36 contacts →
	Partial evidence “MOR Environmental is a leading environmental consultancy firm with offices in Dublin, Cork and Tullamore.” Source: RevenueBase Database · checked Sep 21, 2026
14	PMS Pavement Management Services LTD	Indirect evidence	Athenry, IrelandHQ checked Sep 21, 2026	11-50	35 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
15	Ground Investigations Ireland	Indirect evidence	Newcastle, IrelandHQ checked Sep 21, 2026	51-200	33 contacts →
	Indirect evidence “Ground Investigations Ireland Ltd.” Source: RevenueBase Database · checked Sep 21, 2026
16	Aurum Exploration Services	Partial evidence	Kells Business Park, IrelandHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “Aurum, a leading geo-consultancy company, offers a wide range of quality-led, professional, cost-effective technical services to all levels of the mineral exploration industry.” Source: RevenueBase Database · checked Sep 21, 2026
17	Icrag Research Ireland Centre For Applied Geosciences	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	51-200	25 contacts →
	Indirect evidence “iCRAG is the SFI Research Centre in Applied Geosciences hosted by University College Dublin.” Source: RevenueBase Database · checked Sep 21, 2026
18	Clandillon Civil Consulting LTD	Partial evidence	Newbridge, IrelandHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “is a civil engineering consultancy, which is dedicated to providing exceptional service to main Contractors in the execution of civil engineering projects.” Source: RevenueBase Database · checked Sep 21, 2026
19	Mmos Engineers	Partial evidence	Cork, IrelandHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “Murphy Matson O’ Sullivan Consulting Engineers are a chartered engineering consultancy practice who provide clients with design, detailing and supervision services in the field of…” Source: RevenueBase Database · checked Sep 21, 2026
20	Minerex Environmental LTD	Partial evidence	Dublin 14, IrelandHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “Minerex Environmental Ltd.(MEL) was established in 1994 as an independent Irish consultancy providing environmental services in the hydrogeological and environmental disciplines…” Source: RevenueBase Database · checked Sep 21, 2026
21	OMC	Partial evidence	Galway, IrelandHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “OMC Group, we provide a seamless, multidisciplinary consultancy service, specialising in engineering, design, and compliance solutions for commercial projects.” Source: RevenueBase Database · checked Sep 21, 2026
22	Aquafact	Partial evidence	Galway, IrelandHQ checked Sep 21, 2026	1-10	20 contacts →
	Partial evidence “AQUAFACT, part of APEM Group, is an environmental consultancy established in 1986.” Source: RevenueBase Database · checked Sep 21, 2026
23	TST Engineering Group	Indirect evidence	Dublin, IrelandHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “Founded in 1998, TST Engineering Group has established itself as an internationally recognized civil engineering firm specializing in non-destructive investigations.” Source: RevenueBase Database · checked Sep 21, 2026
24	DRA Consulting Engineers	Indirect evidence	Limerick, IrelandHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “DRA Consulting are Chartered Engineers who provide clients with design, detailing and supervision services in the field of civil & structural engineering.” Source: RevenueBase Database · checked Sep 21, 2026
25	Donnachadh O'brien & Associates	Partial evidence	Naas, IrelandHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Donnachadh O’ Brien & Associates was founded by Donnachadh O’Brien, Registered Chartered Engineer, and has grown to be an established civil and structural engineering consultancy…” Source: RevenueBase Database · checked Sep 21, 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: geological 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 geological consultants.
Partial evidence: Its own public description names part of geological consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological 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 161 geological consultants based in Ireland

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Geological consultants based in Ireland at a glance

As of Sep 21, 2026

48.3%Verified-email coverage

14.3Average contacts per company

1-10Median size (employees)

15.5%Largest-city concentration · Dublin

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 161 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 geological 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 “geological 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 geological 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 geological 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, 1,113 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 21, 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.

Geological consultants by metro

Geological consultants in Dublin25

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 geological 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 geological consultants are there based in Ireland?

RevenueBase identified 161 geological 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?

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

Which city has the most geological consultants?

Dublin leads with 25 headquartered companies, followed by Cork (11) and Galway (7).

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 1,113 verified decision-maker contacts tracked across these 161 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 21, 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.