Company lists · Data refreshed November 2026

Top 25 Electrical contractors for data centers based in Ireland

RevenueBase identified 160 company matches for electrical contractors for data centers associated with Ireland as of November 2026 and tracks 4,155 professional contacts across them, including 1,757 with verified work emails. Dublin is the largest hub.

This list covers company matches for electrical contractors for data centers 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 November 6, 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 Nov 6, 2026 How this list was built
160Companies
4,155Contacts tracked
1,757Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest electrical contractors for data centers based in Ireland

Ranked by team size
Top 25 of 160 company matches for electrical contractors for data centers based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDublin, IrelandHQ recorded Nov 6, 2026501-1,000976 contacts →

Exact match

“Winthrop Technologies is a dedicated data centre delivery partner providing turnkey solutions to our clients, headquartered in Dublin and delivering throughout Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDublin, IrelandHQ recorded Nov 6, 2026201-500257 contacts →

Exact match

“As a global leader in mission critical Data Centres, MEP services and Facilities Management, Sensori brings unmatched technical expertise to the design and construction of the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDublin, IrelandHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“CJK is one of the leading M&E contractors in Ireland, delivering mission critical mechanical and electrical solutions across high demand sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchClonmel, IrelandHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“CET Connect is a leading installer of IT Network Infrastructure & Structured Cabling Installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDublin, IrelandHQ recorded Nov 6, 2026501-1,00055 contacts →

Exact match

“Mechanical and Electrical Engineering”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIrelandHQ recorded Nov 6, 2026201-50049 contacts →

Exact match

“Tim Kelly Group, founded in 1974, is one of Ireland’s leading mechanical and electrical contractors offering mechanical, electrical, fire protection and technology solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchDublin 18, IrelandHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Brooklyn Engineering provides electrical engineering services within the construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRathcoole, IrelandHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Capital Switchgear is a leader in the design and manufacture of Low Voltage switchgear for Data Centers, Commercial and Industrial buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKildare, IrelandHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Established in 2006, Cloncad is a 100% Irish owned contractor headquartered in Moyvalley, Kildare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5045 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDublin 15, IrelandHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Sammin Engineering is a dynamic Electrical Engineering services company that was founded in 2005.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchGalway, IrelandHQ recorded Nov 6, 2026201-50039 contacts →

Exact match

“Easca Group was founded by Gary O’Boyle and Simon Kavanagh as a solution to electrical and mechanical labour requirements throughout Europe and globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBorrisokane, IrelandHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Derg Client Services aims to become a market leading provider in the electrical industry to a variety of industries including data processing, biotechnology, pharmaceutical and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAshbourne, IrelandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Established since 1991, HVSM is a wholly Irish owned company which is headquartered in Ireland but is present and operating globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCo Waterford, IrelandHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“CTS Group is the first choice for those seeking electrical, mechanical and technology contracting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLimerick, IrelandHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“Established in 1989, H&F Electrical Contractors Ltd offer a wealth of experience and expertise across all market sectors in delivering electrical, instrumentation, data network…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDublin, IrelandHQ recorded Nov 6, 202651-20026 contacts →

Exact match

“Established in 1979, J.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNaas, IrelandHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Direct Strike is a specialist construction firm focused on earthing and lightning protection systems for hyperscale data centres and critical infrastructure projects across Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDublin 12, IrelandHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Alfa Electrical is one of Ireland's leading electrical engineering contractors, delivering high-quality commercial, industrial, residential and retail projects nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDublin, IrelandHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“How to keep up with an ever-evolving industry of specialised EX Equipment, Lighting, Lighting Controls & Cable Management?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchEnnis, IrelandHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Keldin Engineering is a privately owned, Irish-based company specializing in the delivery of Electrical Services to a diverse range of clients across multiple sectors, including…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDublin 9, IrelandHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“A&L ELECTRICAL LTD is an Electrical Contractors company based out of MCE House, Unit C8 Santry Business Park, Santry, Dublin 9.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDunleer, IrelandHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Armour Group is a leading electrical contracting company delivering end-to-end solutions across commercial, industrial, infrastructure, and residential sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOsberstown, IrelandHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“RGN Specialises in retro-fit School, Commerical, and industrial fit outs”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchStradone, IrelandHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“A national provider of electrical contracting services since 1996, Callaghan Electrical has built a reputation for quality, trust, integrity and commitment amongst design…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 160 electrical contractors for data centers based in Ireland

See the full list, filter by size, metro and specialty, and access 1,757 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Electrical contractors for data centers based in Ireland at a glance

As of Nov 6, 2026
42.3%Verified-email coverage
26.0Average contacts per company
11-50Median size (employees)
18.1%Largest-city concentration · Dublin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
75
51-200
26
201-500
5
501-1,000
3
1,001-5,000
1

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 160 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 “electrical contractors for data centers” 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 1,757 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 November 6, 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.

Electrical contractors for data centers by metro

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 “electrical contractors for data centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical contractors for data centers are there based in Ireland?

RevenueBase identified 160 company matches for electrical contractors for data centers associated with Ireland as of November 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?

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

Which city has the most electrical contractors for data centers?

Dublin leads with 29 company records, followed by Rathcoole (6) and Cork (5).

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 1,757 professional contacts with verified work emails tracked across these 160 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 160 electrical contractors for data centers based in Ireland. Start with a free account, no credit card.

Download this list →

Related lists

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.