Company lists · Data refreshed October 2026

Top 25 Energy systems engineering services based in Ireland

Name: Energy systems engineering services based in Ireland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 166 companies tracked

RevenueBase identified 166 company matches for energy systems engineering services associated with Ireland as of October 2026 and tracks 6,177 professional contacts across them, including 1,857 with verified work emails. Dublin is the largest hub.

This list covers company matches for energy systems engineering services 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 October 25, 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 Oct 25, 2026 How this list was built

166Companies

6,177Contacts tracked

1,857Verified emails

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The 25 largest energy systems engineering services based in Ireland

Ranked by team size

Top 25 of 166 company matches for energy systems engineering services based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	Dornan	Exact match	Cork, IrelandHQ recorded Oct 25, 2026	501-1,000	1,280 contacts →
	Exact match “Dornan Engineering concentrates on a market where quality is appreciated.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Shanahan Engineering	Exact match	Dun Laoghaire, IrelandHQ recorded Oct 25, 2026	501-1,000	397 contacts →
	Exact match “Shanahan Engineering is a leading global energy services company.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Fingleton White	Exact match	Portlaoise, IrelandHQ recorded Oct 25, 2026	201-500	188 contacts →
	Exact match “Fingleton White is a leading provider of multidisciplinary engineering services, delivering innovative solutions to utility owners and large energy users across the Energy, Water…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Tritech Engineering	Exact match	Dublin 22, IrelandHQ recorded Oct 25, 2026	201-500	186 contacts →
	Exact match “Driving ESG Success Through Precision Engineering Investors today face increasing pressure to achieve higher building performance standards, meet strict sustainability targets…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Dbfl Consulting Engineers LTD	Exact match	Dublin, IrelandHQ recorded Oct 25, 2026	51-200	182 contacts →
	Exact match “DBFL is a fully Irish-owned firm specializing in the planning, engineering design and delivery within the property, infrastructure, environmental & energy sectors.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	Fehily Timoney And Company	Exact match	Cork, IrelandHQ recorded Oct 25, 2026	51-200	120 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 · Oct 25, 2026 · View company records in RevenueBase
7	Jennings O'donovan & Partners	Exact match	Sligo, IrelandHQ recorded Oct 25, 2026	51-200	87 contacts →
	Exact match “Jennings O’Donovan is a multidisciplinary consulting engineering firm specialising in renewable energy, water supply, wastewater treatment and in the provision of planning and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Prochem Engineering	Exact match	Kilkenny, IrelandHQ recorded Oct 25, 2026	51-200	81 contacts →
	Exact match “Prochem Engineering is one of the leading engineering consultancy firms in Ireland, having been established in 1995.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	Europlan Group	Exact match	Dublin, IrelandHQ recorded Oct 25, 2026	51-200	76 contacts →
	Exact match “For over four decades, the Europlan Group has been a trusted partner, delivering exceptional services to the Engineering and Industrial sectors worldwide.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	Tandem Project Management LTD	Exact match	Blackrock, IrelandHQ recorded Oct 25, 2026	51-200	70 contacts →
	Exact match “Tandem is an engineering consultancy specialising in project management, multi-disciplined engineering design, construction management, energy & carbon reduction, EHS and talent…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Varming Consulting Engineers LTD	Exact match	Dundrum, IrelandHQ recorded Oct 25, 2026	11-50	61 contacts →
	Exact match “At Varming, we’re all about cutting-edge design and meticulous oversight of mechanical and electrical services, whether it’s for brand-new constructions or revitalizing existing…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Atlantach Technical Services	Exact match	Maynooth, IrelandHQ recorded Oct 25, 2026	51-200	57 contacts →
	Exact match “Atlantach Is A Rapidly Expanding Engineering Solutions Company Driven By Passionate Customer Service And Delivering Forward-Thinking Projects.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	SE Systems	Exact match	Cork, IrelandHQ recorded Oct 25, 2026	51-200	57 contacts →
	Exact match “SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Project Engineering	Exact match	Ardee, IrelandHQ recorded Oct 25, 2026	n/a	53 contacts →
	Exact match “Project Engineering are a leading provider of mechanical engineering and product development services to the manufacturing and technology sectors.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Enersol Engineering	Exact match	Drogheda, IrelandHQ recorded Oct 25, 2026	51-200	48 contacts →
	Exact match “Enersol provides electrical power engineering services to the industrial, commercial, electrical utilities and renewable energy sectors in Ireland and the UK.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Premium Power LTD	Exact match	Dublin, IrelandHQ recorded Oct 25, 2026	11-50	47 contacts →
	Exact match “Premium Power is an electrical engineering consultancy focused on providing innovative, bespoke solutions to the data centre, pharmaceutical, manufacturing, renewable & utility…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	Axiseng	Exact match	Dublin, IrelandHQ recorded Oct 25, 2026	11-50	46 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 · Oct 25, 2026 · View company records in RevenueBase
18	WTE Energy Group	Exact match	Rathangan, IrelandHQ recorded Oct 25, 2026	11-50	43 contacts →
	Exact match “WTE Energy is an award-winning service provider in the European Renewable Energy industry.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Process Facilities Group International	Exact match	Cork, IrelandHQ recorded Oct 25, 2026	51-200	37 contacts →
	Exact match “PFGI is a leading multi disciplined engineering company, specialising in process design consultancy and project engineering for a broad range of clients in a variety of sectors…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	MMA Consulting Engineers	Exact match	Balbriggan, IrelandHQ recorded Oct 25, 2026	11-50	33 contacts →
	Exact match “MMA Consulting Engineers is committed to providing integrated engineering solutions and has grown to become one of the most recognized and sought-after mechanical and electrical…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Foltech Engineering LTD	Exact match	Little Island, IrelandHQ recorded Oct 25, 2026	51-200	30 contacts →
	Exact match “Foltech executes complex engineering, procurement, construction, and maintenance projects for commercial clients around the country.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	FPK Engineering Solutions	Exact match	Kilkenny, IrelandHQ recorded Oct 25, 2026	51-200	28 contacts →
	Exact match “FPK are a client-focused Architectural & Engineering design consultancy and resource support service firm serving the Pharmaceutical, Medical Device and Food Industry.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Hayes Higgins Partnership	Exact match	Kilkenny, IrelandHQ recorded Oct 25, 2026	11-50	28 contacts →
	Exact match “Hayes Higgins Partnership is a multidisciplinary consulting engineering practice employing 38 staff in Dublin, Kilkenny & London.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Mmos Engineers	Exact match	Cork, IrelandHQ recorded Oct 25, 2026	11-50	27 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Mcsherry Electrical LTD	Exact match	Mallow, IrelandHQ recorded Oct 25, 2026	51-200	26 contacts →
	Exact match “Established in 1986, McSherry provides Electrical Engineering Services from design to installation and maintenance for the following industries: Process, Manufacturing, Food &…” Recorded in the RevenueBase company graph · Oct 25, 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 “energy systems engineering services”. 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 166 energy systems engineering services based in Ireland

See the full list, filter by size, metro and specialty, and access 1,857 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy systems engineering services based in Ireland at a glance

As of Oct 25, 2026

30.1%Verified-email coverage

37.2Average contacts per company

11-50Median size (employees)

19.9%Largest-city concentration · Dublin

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 166 companies.

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 “energy systems engineering services” 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 1,857 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 October 25, 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.

Energy systems engineering services by metro

Energy systems engineering services in Dublin33

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 “energy systems engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy systems engineering services are there based in Ireland?

RevenueBase identified 166 company matches for energy systems engineering services associated with Ireland as of October 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?

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

Which city has the most energy systems engineering services?

Dublin leads with 33 company records, followed by Cork (11) and Limerick (6).

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 1,857 professional contacts with verified work emails tracked across these 166 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 October 25, 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.