Company lists · Data refreshed October 2026
Top 25 Operations and maintenance contractors based in Ireland
RevenueBase identified 65 company matches for operations and maintenance contractors associated with Ireland as of October 2026 and tracks 1,112 professional contacts across them, including 428 with verified work emails. Dublin is the largest hub.
This list covers company matches for operations and maintenance contractors 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 22, 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 operations and maintenance contractors based in Ireland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 199 contacts → | ||||
Exact match “OFS was established in 2002 to meet the growing needs of the international Oil & Gas, Power Generation and Energy markets.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 2 | 129 contacts → | ||||
Exact match “Security solutions” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 3 | 87 contacts → | ||||
Exact match “Quinn Downes Mechanical Services Ltd was founded in by our Directors Pat Quinn and Derek Downes.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 4 | 71 contacts → | ||||
Exact match “Acacia Facilities Management is the largest indigenous Facilities Management (FM) Service provider in Ireland.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 5 | 65 contacts → | ||||
Exact match “McKeon Group is a main contractor and facilities maintenance partner based in Ashbourne, Co Meath, specialising in large-scale new-build, extension, fit out and deep energy…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 6 | 60 contacts → | ||||
Exact match “Elevare has established itself as a prestigious provider of onsite services that was established is 2008.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 7 | 51 contacts → | ||||
Exact match “Thermodial are experts in planned preventative maintenance (PPM) of heating, ventilation and air conditioning (HVAC), BEMS, electrical and water services – since 1986.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 8 | 47 contacts → | ||||
Exact match “Our purpose as a company is to provide full facilities management solutions to the corporate and private sectors in a professional manner with a focus on delivering outstanding…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 9 | 38 contacts → | ||||
Exact match “Optinergy is a leading Operations and Maintenance (O&M) company in the renewable energy industry, dedicated to ensuring the safe, reliable, and efficient performance of renewable…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 10 | 35 contacts → | ||||
Exact match “Domestic & General Dublin Property Support Services is a long established & much-respected facilities services company.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 11 | 35 contacts → | ||||
Exact match “Verax services include: preventative maintenance labour solutions; project labour solutions; turnkey equipment installation and decommissioning services; used equipment and parts…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 12 | 27 contacts → | ||||
Exact match “Controlled Environment Solutions (CES) Ltd is a growing Irish based company who provide professional Facilities Management & Project Services to organisations wishing to develop…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 13 | 18 contacts → | ||||
Exact match “ASMS – Architectural Steel & Mechanical Services was established in 2006, it is an Irish owned Company based in the South of the Country, We operate on a national scale from small…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 14 | 16 contacts → | ||||
Exact match “Alpha Facilities Maintenance specialises in planned preventative maintenance, reactive maintenance, and 24-7-365 emergency support for commercial, retail, and industrial…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “Blanchfield Heating was established in 1994 as a private owned business with a flexible client-focused approach and an appreciation of long term business relationships.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “Over 10 successful years providing high quality service to the building and property maintenance industry.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “Our mission at O’Brien Facilities is to provide flexible and professional facilities maintenance solutions tailored to the specific needs of each of our clients.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “A facility management company in Cork.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match “Sensori Facilities Management has embedded the word ‘Life’ into everything it provides to its clients.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match “About Us At DND Group, we are not just a facilities and Building Services company; we are the architects of seamless, sustainable, and electrifying environments.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “Our dedicated team of Facilities Management Specialists is available 24/7 to provide you with expert service – so whether it’s your building, office, or factory, we deliver a…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 22 | 4 contacts → | ||||
Exact match “A team, combining our expertise in construction and MRO operations to help our clients develop fit-for-purpose maintenance facilities.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “EMH Technical Services Ltd is a new and dynamic Technical/Electrical/Data installation & service provider.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “Since ACS Construction & Facilities Management was established in 2015, our company has grown from strength to strength.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 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 “operations and maintenance contractors”. 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 65 operations and maintenance contractors based in Ireland
See the full list, filter by size, metro and specialty, and access 428 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Operations and maintenance contractors based in Ireland at a glance
As of Oct 22, 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 65 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 “operations and maintenance contractors” 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 428 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 22, 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 “operations and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many operations and maintenance contractors are there based in Ireland?
RevenueBase identified 65 company matches for operations and maintenance contractors 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?
OFS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most operations and maintenance contractors?
Dublin leads with 13 company records, followed by Cork (7) and Carlow (2).
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 428 professional contacts with verified work emails tracked across these 65 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 65 operations and maintenance contractors based in Ireland. Start with a free account, no credit card.
Download this list →Related lists
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- Operations and maintenance contractors based in Milan, Italy
- Operations and maintenance contractors based in Auckland, New Zealand
- Operations and maintenance contractors based in Warsaw, Poland
- Operations and maintenance contractors based in Doha, Qatar
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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- Lists by location
- Lists A-Z
- New lists
- Operations and maintenance contractors based in Melbourne, Australia
- Operations and maintenance contractors based in Sydney, Australia
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Company intelligence · public preview
Top 25 operations and maintenance contractors 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 65 matching company records for operations and maintenance contractors based in Ireland, with 1,112 tracked contacts and 428 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: October 22, 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 operations and maintenance contractors 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 | OFSofsl.com HQ: Naas, IrelandReported employees: 51-200 | Naas, Ireland | 51-200 | Exact match | 199 contacts → |
“OFS was established in 2002 to meet the growing needs of the international Oil & Gas, Power Generation and Energy markets.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  RFC Security Grouprfc-security.ieHQ: Swords, IrelandReported employees: 501-1,000 | Swords, Ireland | 501-1,000 | Exact match | 129 contacts → |
“Security solutions” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Quinn Downes Groupquinndownes.comHQ: Dublin 12, IrelandReported employees: 51-200 | Dublin 12, Ireland | 51-200 | Exact match | 87 contacts → |
“Quinn Downes Mechanical Services Ltd was founded in by our Directors Pat Quinn and Derek Downes.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Acaciaacacia.ieHQ: Blanchardstown, IrelandReported employees: 201-500 | Blanchardstown, Ireland | 201-500 | Exact match | 71 contacts → |
“Acacia Facilities Management is the largest indigenous Facilities Management (FM) Service provider in Ireland.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Mckeon Groupmckeon.ie HQ: Ashbourne, IrelandReported employees: 51-200 | Ashbourne, Ireland | 51-200 | Exact match | 65 contacts → |
“McKeon Group is a main contractor and facilities maintenance partner based in Ashbourne, Co Meath, specialising in large-scale new-build, extension, fit out and deep energy…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Elevareelevare.ieHQ: Little Island, IrelandReported employees: 201-500 | Little Island, Ireland | 201-500 | Exact match | 60 contacts → |
“Elevare has established itself as a prestigious provider of onsite services that was established is 2008.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Thermodialthermodial.ieHQ: Magna Business Park, IrelandReported employees: 51-200 | Magna Business Park, Ireland | 51-200 | Exact match | 51 contacts → |
“Thermodial are experts in planned preventative maintenance (PPM) of heating, ventilation and air conditioning (HVAC), BEMS, electrical and water services – since 1986.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Allpro Servicesallpro.ieHQ: Co. Galway, IrelandReported employees: 201-500 | Co. Galway, Ireland | 201-500 | Exact match | 47 contacts → |
“Our purpose as a company is to provide full facilities management solutions to the corporate and private sectors in a professional manner with a focus on delivering outstanding…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Optinergy LTDoptinergy.com HQ: Stradone, IrelandReported employees: 11-50 | Stradone, Ireland | 11-50 | Exact match | 38 contacts → |
“Optinergy is a leading Operations and Maintenance (O&M) company in the renewable energy industry, dedicated to ensuring the safe, reliable, and efficient performance of renewable…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Domestic & General Property Support Services LTDdomesticandgeneral.ieHQ: Rathcoole, IrelandReported employees: 201-500 | Rathcoole, Ireland | 201-500 | Exact match | 35 contacts → |
“Domestic & General Dublin Property Support Services is a long established & much-respected facilities services company.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Verax Limitedverax-semiconductor.com HQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 35 contacts → |
“Verax services include: preventative maintenance labour solutions; project labour solutions; turnkey equipment installation and decommissioning services; used equipment and parts…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 27 contacts → |
“Controlled Environment Solutions (CES) Ltd is a growing Irish based company who provide professional Facilities Management & Project Services to organisations wishing to develop…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Asms Mechanical Services LTDasms.ieHQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 18 contacts → |
“ASMS – Architectural Steel & Mechanical Services was established in 2006, it is an Irish owned Company based in the South of the Country, We operate on a national scale from small…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alpha Facilities Maintenancealphamech.ieHQ: Clonshaugh, IrelandReported employees: 51-200 | Clonshaugh, Ireland | 51-200 | Exact match | 16 contacts → |
“Alpha Facilities Maintenance specialises in planned preventative maintenance, reactive maintenance, and 24-7-365 emergency support for commercial, retail, and industrial…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Blanchfield Heatingblanchfieldheating.comHQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 13 contacts → |
“Blanchfield Heating was established in 1994 as a private owned business with a flexible client-focused approach and an appreciation of long term business relationships.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Greenlightgreenlightps.ie HQ: Dublin 12, IrelandReported employees: 11-50 | Dublin 12, Ireland | 11-50 | Exact match | 12 contacts → |
“Over 10 successful years providing high quality service to the building and property maintenance industry.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  O'brien Facilities LTDobrienfacilities.comHQ: Limerick, IrelandReported employees: 11-50 | Limerick, Ireland | 11-50 | Exact match | 11 contacts → |
“Our mission at O’Brien Facilities is to provide flexible and professional facilities maintenance solutions tailored to the specific needs of each of our clients.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | LW Managementlwmanagement.ie HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 10 contacts → |
“A facility management company in Cork.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sensori Facilities Management LTDsensorifm.com HQ: IrelandReported employees: 201-500 | Ireland | 201-500 | Exact match | 9 contacts → |
“Sensori Facilities Management has embedded the word ‘Life’ into everything it provides to its clients.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  DND Groupdndgroup.ieHQ: Ballycoolin, IrelandReported employees: 11-50 | Ballycoolin, Ireland | 11-50 | Exact match | 8 contacts → |
“About Us At DND Group, we are not just a facilities and Building Services company; we are the architects of seamless, sustainable, and electrifying environments.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Juggle Groupjugglegroup.ie HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 6 contacts → |
“Our dedicated team of Facilities Management Specialists is available 24/7 to provide you with expert service – so whether it’s your building, office, or factory, we deliver a…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MRO Facilitiesmro-facilities.com HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 4 contacts → |
“A team, combining our expertise in construction and MRO operations to help our clients develop fit-for-purpose maintenance facilities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  EMH Technical Services LTDemh-elect.ieHQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 4 contacts → |
“EMH Technical Services Ltd is a new and dynamic Technical/Electrical/Data installation & service provider.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ACS Construction & Facilities Managementacsgroupirl.comHQ: Rathcoole, IrelandReported employees: 11-50 | Rathcoole, Ireland | 11-50 | Exact match | 4 contacts → |
“Since ACS Construction & Facilities Management was established in 2015, our company has grown from strength to strength.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Secure Facility Servicessecurefs.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 65 company matches
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Operations and maintenance contractors: dataset insights
October 22, 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
64 records in the displayed employee bands.
1 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 65 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: October 22, 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 operations and maintenance contractors?
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 operations and maintenance contractors did RevenueBase find based in Ireland?
The saved snapshot records 65 matching company records, 1,112 tracked contacts and 428 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: October 22, 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
Operations and maintenance contractors by geography
- Operations and maintenance contractors based in Melbourne, Australia
- Operations and maintenance contractors based in Sydney, Australia
- Operations and maintenance contractors based in Rio De Janeiro, Brazil
- Operations and maintenance contractors based in Sao Paulo, Brazil
- Operations and maintenance contractors based in Toronto, Canada
- Operations and maintenance contractors based in Berlin, Germany
- Operations and maintenance contractors based in Bangalore, India
- Operations and maintenance contractors based in Chennai, India
- Operations and maintenance contractors based in Milan, Italy
- Operations and maintenance contractors based in Auckland, New Zealand
- Operations and maintenance contractors based in Warsaw, Poland
- Operations and maintenance contractors based in Doha, Qatar
Cite this list
RevenueBase Data Team. Top 25 operations and maintenance contractors based in Ireland. Snapshot: October 22, 2026. https://revenuebase.ai/companies/operations-and-maintenance-contractors/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
- Lists by location
- Lists A-Z
- New lists
- Operations and maintenance contractors based in Melbourne, Australia
- Operations and maintenance contractors based in Sydney, Australia
- Operations and maintenance contractors based in Rio De Janeiro, Brazil
- Operations and maintenance contractors based in Sao Paulo, Brazil
- Operations and maintenance contractors based in Toronto, Canada
- Operations and maintenance contractors based in Berlin, Germany
Company intelligence · public preview
Top 25 operations and maintenance contractors based in Ireland
RevenueBase records 65 matching company records for operations and maintenance contractors based in Ireland, with 1,112 tracked contacts and 428 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: October 22, 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 operations and maintenance contractors 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 | OFSofsl.com HQ: Naas, IrelandReported employees: 51-200 | Naas, Ireland | 51-200 | Exact match | 199 contacts → |
“OFS was established in 2002 to meet the growing needs of the international Oil & Gas, Power Generation and Energy markets.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | RFC Security Grouprfc-security.ie HQ: Swords, IrelandReported employees: 501-1,000 | Swords, Ireland | 501-1,000 | Exact match | 129 contacts → |
“Security solutions” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Quinn Downes Groupquinndownes.com HQ: Dublin 12, IrelandReported employees: 51-200 | Dublin 12, Ireland | 51-200 | Exact match | 87 contacts → |
“Quinn Downes Mechanical Services Ltd was founded in by our Directors Pat Quinn and Derek Downes.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Acaciaacacia.ie HQ: Blanchardstown, IrelandReported employees: 201-500 | Blanchardstown, Ireland | 201-500 | Exact match | 71 contacts → |
“Acacia Facilities Management is the largest indigenous Facilities Management (FM) Service provider in Ireland.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Mckeon Groupmckeon.ie HQ: Ashbourne, IrelandReported employees: 51-200 | Ashbourne, Ireland | 51-200 | Exact match | 65 contacts → |
“McKeon Group is a main contractor and facilities maintenance partner based in Ashbourne, Co Meath, specialising in large-scale new-build, extension, fit out and deep energy…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Elevareelevare.ie HQ: Little Island, IrelandReported employees: 201-500 | Little Island, Ireland | 201-500 | Exact match | 60 contacts → |
“Elevare has established itself as a prestigious provider of onsite services that was established is 2008.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Thermodialthermodial.ie HQ: Magna Business Park, IrelandReported employees: 51-200 | Magna Business Park, Ireland | 51-200 | Exact match | 51 contacts → |
“Thermodial are experts in planned preventative maintenance (PPM) of heating, ventilation and air conditioning (HVAC), BEMS, electrical and water services – since 1986.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Allpro Servicesallpro.ie HQ: Co. Galway, IrelandReported employees: 201-500 | Co. Galway, Ireland | 201-500 | Exact match | 47 contacts → |
“Our purpose as a company is to provide full facilities management solutions to the corporate and private sectors in a professional manner with a focus on delivering outstanding…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Optinergy LTDoptinergy.com HQ: Stradone, IrelandReported employees: 11-50 | Stradone, Ireland | 11-50 | Exact match | 38 contacts → |
“Optinergy is a leading Operations and Maintenance (O&M) company in the renewable energy industry, dedicated to ensuring the safe, reliable, and efficient performance of renewable…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Domestic & General Property Support Services LTDdomesticandgeneral.ie HQ: Rathcoole, IrelandReported employees: 201-500 | Rathcoole, Ireland | 201-500 | Exact match | 35 contacts → |
“Domestic & General Dublin Property Support Services is a long established & much-respected facilities services company.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Verax Limitedverax-semiconductor.com HQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 35 contacts → |
“Verax services include: preventative maintenance labour solutions; project labour solutions; turnkey equipment installation and decommissioning services; used equipment and parts…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 27 contacts → |
“Controlled Environment Solutions (CES) Ltd is a growing Irish based company who provide professional Facilities Management & Project Services to organisations wishing to develop…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Asms Mechanical Services LTDasms.ie HQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 18 contacts → |
“ASMS – Architectural Steel & Mechanical Services was established in 2006, it is an Irish owned Company based in the South of the Country, We operate on a national scale from small…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alpha Facilities Maintenancealphamech.ie HQ: Clonshaugh, IrelandReported employees: 51-200 | Clonshaugh, Ireland | 51-200 | Exact match | 16 contacts → |
“Alpha Facilities Maintenance specialises in planned preventative maintenance, reactive maintenance, and 24-7-365 emergency support for commercial, retail, and industrial…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Blanchfield Heatingblanchfieldheating.com HQ: Kilkenny, IrelandReported employees: 11-50 | Kilkenny, Ireland | 11-50 | Exact match | 13 contacts → |
“Blanchfield Heating was established in 1994 as a private owned business with a flexible client-focused approach and an appreciation of long term business relationships.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Greenlightgreenlightps.ie HQ: Dublin 12, IrelandReported employees: 11-50 | Dublin 12, Ireland | 11-50 | Exact match | 12 contacts → |
“Over 10 successful years providing high quality service to the building and property maintenance industry.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | O'brien Facilities LTDobrienfacilities.com HQ: Limerick, IrelandReported employees: 11-50 | Limerick, Ireland | 11-50 | Exact match | 11 contacts → |
“Our mission at O’Brien Facilities is to provide flexible and professional facilities maintenance solutions tailored to the specific needs of each of our clients.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | LW Managementlwmanagement.ie HQ: Cork, IrelandReported employees: 51-200 | Cork, Ireland | 51-200 | Exact match | 10 contacts → |
“A facility management company in Cork.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sensori Facilities Management LTDsensorifm.com HQ: IrelandReported employees: 201-500 | Ireland | 201-500 | Exact match | 9 contacts → |
“Sensori Facilities Management has embedded the word ‘Life’ into everything it provides to its clients.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | DND Groupdndgroup.ie HQ: Ballycoolin, IrelandReported employees: 11-50 | Ballycoolin, Ireland | 11-50 | Exact match | 8 contacts → |
“About Us At DND Group, we are not just a facilities and Building Services company; we are the architects of seamless, sustainable, and electrifying environments.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Juggle Groupjugglegroup.ie HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 6 contacts → |
“Our dedicated team of Facilities Management Specialists is available 24/7 to provide you with expert service – so whether it’s your building, office, or factory, we deliver a…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MRO Facilitiesmro-facilities.com HQ: Dublin, IrelandReported employees: 11-50 | Dublin, Ireland | 11-50 | Exact match | 4 contacts → |
“A team, combining our expertise in construction and MRO operations to help our clients develop fit-for-purpose maintenance facilities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | EMH Technical Services LTDemh-elect.ie HQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 4 contacts → |
“EMH Technical Services Ltd is a new and dynamic Technical/Electrical/Data installation & service provider.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ACS Construction & Facilities Managementacsgroupirl.com HQ: Rathcoole, IrelandReported employees: 11-50 | Rathcoole, Ireland | 11-50 | Exact match | 4 contacts → |
“Since ACS Construction & Facilities Management was established in 2015, our company has grown from strength to strength.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Secure Facility Servicessecurefs.ie HQ: Dublin, IrelandReported employees: 1-10 | Dublin, Ireland | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 65 company matches
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Operations and maintenance contractors: dataset insights
October 22, 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
64 records in the displayed employee bands.
1 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 65 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: October 22, 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 operations and maintenance contractors?
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 operations and maintenance contractors did RevenueBase find based in Ireland?
The saved snapshot records 65 matching company records, 1,112 tracked contacts and 428 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: October 22, 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 operations and maintenance contractors based in Ireland. Snapshot: October 22, 2026. https://revenuebase.ai/companies/operations-and-maintenance-contractors/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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