Company lists · Data refreshed September 2026

Top 25 Building energy retrofit consultants based in Ireland

RevenueBase identified 93 company matches for building energy retrofit consultants associated with Ireland as of September 2026 and tracks 554 professional contacts across them, including 235 with verified work emails. Dublin is the largest hub.

This list covers company matches for building energy retrofit consultants 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 September 27, 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 Sep 27, 2026 How this list was built
93Companies
554Contacts tracked
235Verified emails
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The 25 largest building energy retrofit consultants based in Ireland

Ranked by team size
Top 25 of 93 company matches for building energy retrofit consultants based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchCork, IrelandHQ recorded Sep 27, 202651-20059 contacts →

Exact match

“SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchThurles, IrelandHQ recorded Sep 27, 202611-5043 contacts →

Exact match

“Electric Ireland Superhomes is a One Stop Shop which looks after all the key stages of a home energy retrofit, from retrofit design through to project completion and management of…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchDublin, IrelandHQ recorded Sep 27, 202651-20032 contacts →

Exact match

“Complex operations made simple.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchKilkenny, IrelandHQ recorded Sep 27, 202611-5024 contacts →

Exact match

“Helping Businesses Cut Energy Costs by up to 50% & Accelerate Their Journey to Net Zero!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchKilnaleck, IrelandHQ recorded Sep 27, 202611-5022 contacts →

Exact match

“KORE Retrofit is your one-stop shop for full domestic, commercial and community-based deep retrofit & project management services in Ireland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchIrelandHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Providing expert design, energy consulting & training in high performance buildings since 1993.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchWexford, IrelandHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“At Energlaze Home Energy Upgrades, not only are we committed to improving the overall comfort of your home, but we are also focused on reducing your energy costs and can help you…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchDublin, IrelandHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“Passive Dynamics was set up in 2020 with a vision that expert knowledge and passion can empower.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchDublin 4, IrelandHQ recorded Sep 27, 202611-5015 contacts →

Exact match

“We are energy innovators and pride ourselves in delivering an end to end range of expertise for the built environment that saves energy, carbon, time and cost.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchWaterford, IrelandHQ recorded Sep 27, 202611-5014 contacts →

Exact match

“Encon is a sustainable building, retrofit, and renewables company committed to transforming how Ireland builds, renovates, and powers its spaces.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Sep 27, 202611-5013 contacts →

Exact match

“Our working lives are constantly being transformed by new thinking and new technology.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchKells, IrelandHQ recorded Sep 27, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchWaterford, IrelandHQ recorded Sep 27, 202611-509 contacts →

Exact match

“Geaney Engineering Consultants are a building services consultancy, and energy management firm offering comprehensive engineering services, project management services, carbon…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchNewtownmountkennedy, IrelandHQ recorded Sep 27, 20261-108 contacts →

Exact match

“Integrate Home Energy Upgrades is a One-Stop-Shop retrofit service provider based in Wicklow town.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchDundalk, IrelandHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Eco Energy Improvements are leading specialists in renewable energy retrofitting solutions with over 20 years of experience.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchUcd Belfield Dublin 4, IrelandHQ recorded Sep 27, 20261-106 contacts →

Exact match

“At Vivid Edge, we're passionate about helping our customers save precious time and funds while cutting carbon.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchBallycoolin, IrelandHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Codex Energy Consultants Ltd is a company of specialist engineering and energy consultants.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchGalway, IrelandHQ recorded Sep 27, 20261-106 contacts →

Exact match

“Fort Energy is a specialist energy consulting firm to the SME, commercial and government sectors.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchMeath, IrelandHQ recorded Sep 27, 202611-506 contacts →

Exact match

“Welcome to Homeology, your trusted partner for home retrofitting and renovations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchAbbeydorney, IrelandHQ recorded Sep 27, 202611-504 contacts →

Exact match

“AWARD winning Kingdom Installation Ltd is a privately owned company with over 20 years’ experience in the supply and installation of energy efficiency solutions to the Domestic…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchEnniscrone, IrelandHQ recorded Sep 27, 202611-504 contacts →

Exact match

“Brusna is an SEAI-registered home insulation and retrofitting specialist operating across the North West of Ireland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchDublin, IrelandHQ recorded Sep 27, 20261-104 contacts →

Exact match

“At Net Zero we provide Building Energy Rating certificates for residential and commercial buildings all over Ireland.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchRaheny, IrelandHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Specialties- Development & implementation of renewable energy & energy efficiency projects • Strategy development & investment planning • Energy savings planning & retrofits •…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchBoycetown, IrelandHQ recorded Sep 27, 202611-503 contacts →

Exact match

“External Insulation Experts Over 20yrs experience in the building trade We specialise in external insulation and retrofits - Dublin, Kildare and the wider Leinster region.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchKilcoole, IrelandHQ recorded Sep 27, 202611-503 contacts →

Exact match

“RENOVA was founded by chartered surveyors John Martin and Alan Stevens to bring the benefits of Deep Retrofit to Irish homeowners.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 93 building energy retrofit consultants based in Ireland

See the full list, filter by size, metro and specialty, and access 235 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building energy retrofit consultants based in Ireland at a glance

As of Sep 27, 2026
42.4%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
14.0%Largest-city concentration · Dublin
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
32
51-200
4

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 93 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 “building energy retrofit consultants” 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 235 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 September 27, 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.

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 “building energy retrofit consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building energy retrofit consultants are there based in Ireland?

RevenueBase identified 93 company matches for building energy retrofit consultants associated with Ireland as of September 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?

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

Which city has the most building energy retrofit consultants?

Dublin leads with 13 company records, followed by Cork (5) and Galway (3).

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 235 professional contacts with verified work emails tracked across these 93 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 September 27, 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.