Company lists · Data verified August 2026

Top 25 Energy consulting firms based in Ireland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 111 companies tracked

There are 111 energy consulting firms headquartered in Ireland (RevenueBase, August 2026). RevenueBase tracks 1,086 professional contacts across them, including 535 with verified work emails and 58 with mobile numbers. Dublin is the largest hub.

This list covers energy consulting firms headquartered in Ireland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

111Companies

1,086Contacts tracked

535Verified emails

58Mobile numbers

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The 25 largest energy consulting firms based in Ireland

Ranked by team size

Top 25 of 111 energy consulting firms based in Ireland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Tritech Engineering	Dublin	201-500	172	82
2	Cornwall Insight	n/a	51-200	111	79
3	Pinergy	Dublin	51-200	99	77
4	Em3	Limerick	51-200	86	51
5	SE Systems	Cork	51-200	59	34
6	Ashgrove Renewables	n/a	51-200	33	6
7	Alternative Energy Ireland	Tullamore	1-10	27	19
8	Horizon Energy Group HEG	Cork	11-50	26	11
9	Clean Energy Ireland	Rathard Aherla	11-50	18	5
10	Plan Energy	Sligo	11-50	17	14
11	Mosart	n/a	11-50	17	11
12	Ultan Technologies	Dublin	11-50	16	10
13	Frontline Energy	Dublin	11-50	15	10
14	Digren Energy	n/a	11-50	14	9
15	Copper Coast Renewables	Waterford	1-10	14	9
16	ENX	n/a	11-50	14	7
17	Kore Energy	n/a	11-50	11	8
18	Meehan Green, A KEO Company	n/a	11-50	11	6
19	Danu Energy Consulting LTD	Dublin	11-50	10	9
20	energybroker.ie	n/a	1-10	10	8
21	Geaney Engineering Consultants	Waterford	11-50	9	6
22	ENSEN	Xxx	11-50	7	3
23	Codex Energy Consultants LTD	n/a	1-10	6	5
24	Quantum Energy Ireland	Cork	1-10	6	3
25	Fort Energy	Galway	1-10	6	3

Showing 25 of 111 energy consulting firms based in Ireland

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Energy consulting firms based in Ireland at a glance

As of Aug 28, 2026

1-10Median size (employees)

DublinLargest hub · 26 HQs

58Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Energy consulting firms by metro

Metro	Companies
Energy consulting firms in Dublin	26
Energy consulting firms in Cork	7
Energy consulting firms in Waterford	4
Energy consulting firms in Tralee	2
Energy consulting firms in Wicklow	2
Energy consulting firms in Kilkenny	2
Energy consulting firms in Galway	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy consulting firms”, with match quality audited by blind human judging, and headquartered in Ireland.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy consulting firms are there based in Ireland?

There are 111 energy consulting firms headquartered in Ireland as of August 2026 (RevenueBase).

What is the largest company on this list?

Tritech Engineering, headquartered in Dublin, tops this list with the largest team on record.

Which city has the most energy consulting firms?

Dublin leads with 26 headquartered companies, followed by Cork (7) and Waterford (4).

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 535 verified decision-maker contacts tracked across these 111 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.