Company lists · Data refreshed September 2026
Top 25 Energy efficiency companies based in Ireland
RevenueBase identified 95 company matches for energy efficiency companies associated with Ireland as of September 2026 and tracks 757 professional contacts across them, including 321 with verified work emails. Dublin is the largest hub.
This list covers company matches for energy efficiency companies 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 15, 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.
The 25 largest energy efficiency companies based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 87 contacts → | ||||
Exact match “EM3 is an industrial energy engineering and advisory partner We work with energy-intensive organisations to drive efficiencies, reduce energy costs, and deliver on decarbonisation…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 2 | 59 contacts → | ||||
Exact match “SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 56 contacts → | ||||
Exact match “Swyft Energy is an online platform that streamlines energy efficient upgrades for homeowner’s saving them time, hassle and money.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 4 | 33 contacts → | ||||
Exact match “We take great pride in our data-driven, scientific approach to energy solutions, spearheaded by a team known for its experience and creative design skills.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 5 | 31 contacts → | ||||
Exact match “Verde Energy Group Delivering energy cost savings and carbon reduction solutions to Commercial & Industrial businesses since 2009.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 6 | 27 contacts → | ||||
Exact match “Renewable Energy installation company specialising in taking a broad view of a companies' energy requirements.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 7 | 26 contacts → | ||||
Exact match “Horizon Energy Group delivers technology-led solutions that reduce energy costs, cut carbon and unlock new revenue opportunities.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 8 | 24 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 15, 2026 · View company records in RevenueBase | |||||
| 9 | 20 contacts → | ||||
Exact match “House 2 Home has been Ireland's leading 'one stop shop' for energy upgrades since 2013.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 10 | 18 contacts → | ||||
Exact match “We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 17 contacts → | ||||
Exact match “Providing expert design, energy consulting & training in high performance buildings since 1993.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 17 contacts → | ||||
Exact match “Symphony Energy is a global leader in optimising energy performance in the commercial built environment.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 15 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 15, 2026 · View company records in RevenueBase | |||||
| 14 | 14 contacts → | ||||
Exact match “We are an energy management consultancy.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 15 | 12 contacts → | ||||
Exact match “We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “Trusted by Irish business owners to lower energy costs.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “Wia is the energy intelligence platform for the world's largest building portfolios.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 9 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 15, 2026 · View company records in RevenueBase | |||||
| 19 | 7 contacts → | ||||
Exact match “Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 20 | 6 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 15, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “Codex Energy Consultants Ltd is a company of specialist engineering and energy consultants.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 6 contacts → | ||||
Exact match “Arden is an integrated energy management services and energy supply company.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 23 | 6 contacts → | ||||
Exact match “Joseph Kearney set up BERcerts.ie in January 2008.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 24 | 6 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 15, 2026 · View company records in RevenueBase | |||||
| 25 | 6 contacts → | ||||
Exact match “Helping businesses of all sizes control their energy costs.” Recorded in the RevenueBase company graph · Sep 15, 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 efficiency companies”. 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 95 energy efficiency companies based in Ireland
See the full list, filter by size, metro and specialty, and access 321 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency companies based in Ireland at a glance
As of Sep 15, 2026Companies by employee count
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 95 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 efficiency companies” 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 321 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 15, 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 “energy efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency companies are there based in Ireland?
RevenueBase identified 95 company matches for energy efficiency companies 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?
Em3 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficiency companies?
Dublin leads with 16 company records, followed by Cork (8) and Waterford (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 321 professional contacts with verified work emails tracked across these 95 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 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 95 energy efficiency companies based in Ireland. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
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Company intelligence · public preview
Top 25 energy efficiency companies based in Ireland
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 95 matching company records for energy efficiency companies based in Ireland, with 757 tracked contacts and 321 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency companies based in Ireland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Em3em3energy.comHQ: Limerick, IrelandReported employees: 51-200 | Limerick, Ireland | 51-200 | Exact match | 87 contacts → |
“EM3 is an industrial energy engineering and advisory partner We work with energy-intensive organisations to drive efficiencies, reduce energy costs, and deliver on decarbonisation…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SE Systemssesystems.ieHQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 59 contacts → |
“SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Swyft Energyswyftenergy.ieHQ: Bishopstown, IrelandReported employees: 51-200 | Bishopstown, Ireland | 51-200 | Exact match | 56 contacts → |
“Swyft Energy is an online platform that streamlines energy efficient upgrades for homeowner’s saving them time, hassle and money.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ashgrove Renewablesashgrove.ieHQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 33 contacts → |
“We take great pride in our data-driven, scientific approach to energy solutions, spearheaded by a team known for its experience and creative design skills.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Verde Energy Groupverdeenergygroup.comHQ: Little Island, IrelandReported employees: 11-50 | Little Island, Ireland | 11-50 | Exact match | 31 contacts → |
“Verde Energy Group Delivering energy cost savings and carbon reduction solutions to Commercial & Industrial businesses since 2009.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Alternative Energy Irelandaeicommercial.ieHQ: Dublin 12, IrelandReported employees: 1-10 | Dublin 12, Ireland | 1-10 | Exact match | 27 contacts → |
“Renewable Energy installation company specialising in taking a broad view of a companies' energy requirements.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Horizon Energy Group HEGheg.ieHQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 26 contacts → |
“Horizon Energy Group delivers technology-led solutions that reduce energy costs, cut carbon and unlock new revenue opportunities.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Lawler Sustainabilitylawlersustainability.comHQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 24 contacts → |
“Helping Businesses Cut Energy Costs by up to 50% & Accelerate Their Journey to Net Zero!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | House 2 Home Retrofit LTDhouse2home.ie HQ: Dublin 12, IrelandReported employees: 11-50 | Dublin 12, Ireland | 11-50 | Exact match | 20 contacts → |
“House 2 Home has been Ireland's leading 'one stop shop' for energy upgrades since 2013.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Clean Energy Irelandcleanenergyireland.ieHQ: Aherla, IrelandReported employees: 11-50 | Aherla, Ireland | 11-50 | Exact match | 18 contacts → |
“We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Mosartmosart.ie HQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 17 contacts → |
“Providing expert design, energy consulting & training in high performance buildings since 1993.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Symphony Energysymphonyenergy.comHQ: Wicklow, IrelandReported employees: 11-50 | Wicklow, Ireland | 11-50 | Exact match | 17 contacts → |
“Symphony Energy is a global leader in optimising energy performance in the commercial built environment.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Frontline Energyfrontlineenergy.ieHQ: Dublin 4, IrelandReported employees: 11-50 | Dublin 4, Ireland | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Digren Energydigrenenergy.ieHQ: Co. Dublin, IrelandReported employees: 11-50 | Co. Dublin, Ireland | 11-50 | Exact match | 14 contacts → |
“We are an energy management consultancy.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Copper Coast Renewablescoppercoastrenewables.comHQ: Waterford, IrelandReported employees: 1-10 | Waterford, Ireland | 1-10 | Exact match | 12 contacts → |
“We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  energybroker.ieenergybroker.ieHQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 10 contacts → |
“Trusted by Irish business owners to lower energy costs.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  WIAwia.ioHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 10 contacts → |
“Wia is the energy intelligence platform for the world's largest building portfolios.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Geaney Engineering Consultantsgeaneyengineering.ieHQ: Waterford, IrelandReported employees: 11-50 | Waterford, Ireland | 11-50 | Exact match | 9 contacts → |
“Geaney Engineering Consultants are a building services consultancy, and energy management firm offering comprehensive engineering services, project management services, carbon…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  ENSENensen.ieHQ: Riverstown Po, IrelandReported employees: 11-50 | Riverstown Po, Ireland | 11-50 | Exact match | 7 contacts → |
“Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Vivid Edgevividedge.ieHQ: Ucd Belfield Dublin 4, IrelandReported employees: 1-10 | Ucd Belfield Dublin 4, Ireland | 1-10 | Exact match | 6 contacts → |
“At Vivid Edge, we're passionate about helping our customers save precious time and funds while cutting carbon.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Codex Energy Consultants LTDcodexenergy.ieHQ: Ballycoolin, IrelandReported employees: 1-10 | Ballycoolin, Ireland | 1-10 | Exact match | 6 contacts → |
“Codex Energy Consultants Ltd is a company of specialist engineering and energy consultants.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Arden Energyardenenergy.ieHQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 6 contacts → |
“Arden is an integrated energy management services and energy supply company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  bercerts.iebercerts.ieHQ: Navan, IrelandReported employees: 1-10 | Navan, Ireland | 1-10 | Exact match | 6 contacts → |
“Joseph Kearney set up BERcerts.ie in January 2008.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Fort Energyfortenergy.ieHQ: Galway, IrelandReported employees: 1-10 | Galway, Ireland | 1-10 | Exact match | 6 contacts → |
“Fort Energy is a specialist energy consulting firm to the SME, commercial and government sectors.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Quantum Energy Irelandquantumenergy.ieHQ: 3rd Floor, IrelandReported employees: 1-10 | 3rd Floor, Ireland | 1-10 | Exact match | 6 contacts → |
“Helping businesses of all sizes control their energy costs.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 95 company matches
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Energy efficiency companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
95 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 95 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy efficiency companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency companies did RevenueBase find based in Ireland?
The saved snapshot records 95 matching company records, 757 tracked contacts and 321 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency companies by geography
- Energy efficiency companies based in Rio De Janeiro, Brazil
- Energy efficiency companies based in Sao Paulo, Brazil
- Energy efficiency companies based in Milan, Italy
- Energy efficiency companies based in Rome, Italy
- Energy efficiency companies based in Turin, Italy
- Energy efficiency companies based in Barcelona, Spain
- Energy efficiency companies based in Madrid, Spain
- Energy efficiency companies based in Valencia, Spain
- Energy efficiency companies based in Atlanta, United States
- Energy efficiency companies based in Austin, United States
- Energy efficiency companies based in Chicago, United States
- Energy efficiency companies based in Dallas, United States
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 energy efficiency companies based in Ireland. Snapshot: September 15, 2026. https://revenuebase.ai/companies/energy-efficiency-companies/ireland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
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- Lists A-Z
- New lists
- Energy efficiency companies based in Rio De Janeiro, Brazil
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Company intelligence · public preview
Top 25 energy efficiency companies based in Ireland
RevenueBase records 95 matching company records for energy efficiency companies based in Ireland, with 757 tracked contacts and 321 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency companies based in Ireland
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Em3em3energy.com HQ: Limerick, IrelandReported employees: 51-200 | Limerick, Ireland | 51-200 | Exact match | 87 contacts → |
“EM3 is an industrial energy engineering and advisory partner We work with energy-intensive organisations to drive efficiencies, reduce energy costs, and deliver on decarbonisation…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SE Systemssesystems.ie HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 59 contacts → |
“SE Systems (Sustainable Energy Systems) is Ireland's leading energy solutions provider.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Swyft Energyswyftenergy.ie HQ: Bishopstown, IrelandReported employees: 51-200 | Bishopstown, Ireland | 51-200 | Exact match | 56 contacts → |
“Swyft Energy is an online platform that streamlines energy efficient upgrades for homeowner’s saving them time, hassle and money.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ashgrove Renewablesashgrove.ie HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 33 contacts → |
“We take great pride in our data-driven, scientific approach to energy solutions, spearheaded by a team known for its experience and creative design skills.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Verde Energy Groupverdeenergygroup.com HQ: Little Island, IrelandReported employees: 11-50 | Little Island, Ireland | 11-50 | Exact match | 31 contacts → |
“Verde Energy Group Delivering energy cost savings and carbon reduction solutions to Commercial & Industrial businesses since 2009.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Alternative Energy Irelandaeicommercial.ie HQ: Dublin 12, IrelandReported employees: 1-10 | Dublin 12, Ireland | 1-10 | Exact match | 27 contacts → |
“Renewable Energy installation company specialising in taking a broad view of a companies' energy requirements.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Horizon Energy Group HEGheg.ie HQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 26 contacts → |
“Horizon Energy Group delivers technology-led solutions that reduce energy costs, cut carbon and unlock new revenue opportunities.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Lawler Sustainabilitylawlersustainability.com HQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 24 contacts → |
“Helping Businesses Cut Energy Costs by up to 50% & Accelerate Their Journey to Net Zero!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | House 2 Home Retrofit LTDhouse2home.ie HQ: Dublin 12, IrelandReported employees: 11-50 | Dublin 12, Ireland | 11-50 | Exact match | 20 contacts → |
“House 2 Home has been Ireland's leading 'one stop shop' for energy upgrades since 2013.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Clean Energy Irelandcleanenergyireland.ie HQ: Aherla, IrelandReported employees: 11-50 | Aherla, Ireland | 11-50 | Exact match | 18 contacts → |
“We offer customers the best products, services and advice to help lower energy costs and reduce their carbon footprint.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Mosartmosart.ie HQ: IrelandReported employees: 11-50 | Ireland | 11-50 | Exact match | 17 contacts → |
“Providing expert design, energy consulting & training in high performance buildings since 1993.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Symphony Energysymphonyenergy.com HQ: Wicklow, IrelandReported employees: 11-50 | Wicklow, Ireland | 11-50 | Exact match | 17 contacts → |
“Symphony Energy is a global leader in optimising energy performance in the commercial built environment.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Frontline Energyfrontlineenergy.ie HQ: Dublin 4, IrelandReported employees: 11-50 | Dublin 4, Ireland | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Digren Energydigrenenergy.ie HQ: Co. Dublin, IrelandReported employees: 11-50 | Co. Dublin, Ireland | 11-50 | Exact match | 14 contacts → |
“We are an energy management consultancy.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Copper Coast Renewablescoppercoastrenewables.com HQ: Waterford, IrelandReported employees: 1-10 | Waterford, Ireland | 1-10 | Exact match | 12 contacts → |
“We are your Energy Saving Net-Zero Partner At Copper Coast Renewables, we offer world class energy savings to your business through innovative green technologies such as Solar PV…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | energybroker.ieenergybroker.ie HQ: Dublin 2, IrelandReported employees: 1-10 | Dublin 2, Ireland | 1-10 | Exact match | 10 contacts → |
“Trusted by Irish business owners to lower energy costs.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | WIAwia.io HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 10 contacts → |
“Wia is the energy intelligence platform for the world's largest building portfolios.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Geaney Engineering Consultantsgeaneyengineering.ie HQ: Waterford, IrelandReported employees: 11-50 | Waterford, Ireland | 11-50 | Exact match | 9 contacts → |
“Geaney Engineering Consultants are a building services consultancy, and energy management firm offering comprehensive engineering services, project management services, carbon…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ENSENensen.ie HQ: Riverstown Po, IrelandReported employees: 11-50 | Riverstown Po, Ireland | 11-50 | Exact match | 7 contacts → |
“Energy Sustainability Environment ENSEN is a concept – implementation of sustainable principals through the delivery of Energy and Environmental products and services in a…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vivid Edgevividedge.ie HQ: Ucd Belfield Dublin 4, IrelandReported employees: 1-10 | Ucd Belfield Dublin 4, Ireland | 1-10 | Exact match | 6 contacts → |
“At Vivid Edge, we're passionate about helping our customers save precious time and funds while cutting carbon.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Codex Energy Consultants LTDcodexenergy.ie HQ: Ballycoolin, IrelandReported employees: 1-10 | Ballycoolin, Ireland | 1-10 | Exact match | 6 contacts → |
“Codex Energy Consultants Ltd is a company of specialist engineering and energy consultants.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Arden Energyardenenergy.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 6 contacts → |
“Arden is an integrated energy management services and energy supply company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | bercerts.iebercerts.ie HQ: Navan, IrelandReported employees: 1-10 | Navan, Ireland | 1-10 | Exact match | 6 contacts → |
“Joseph Kearney set up BERcerts.ie in January 2008.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Fort Energyfortenergy.ie HQ: Galway, IrelandReported employees: 1-10 | Galway, Ireland | 1-10 | Exact match | 6 contacts → |
“Fort Energy is a specialist energy consulting firm to the SME, commercial and government sectors.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Quantum Energy Irelandquantumenergy.ie HQ: 3rd Floor, IrelandReported employees: 1-10 | 3rd Floor, Ireland | 1-10 | Exact match | 6 contacts → |
“Helping businesses of all sizes control their energy costs.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 95 company matches
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Energy efficiency companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
95 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 95 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for energy efficiency companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency companies did RevenueBase find based in Ireland?
The saved snapshot records 95 matching company records, 757 tracked contacts and 321 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 energy efficiency companies based in Ireland. Snapshot: September 15, 2026. https://revenuebase.ai/companies/energy-efficiency-companies/ireland.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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