| Provision of Electricity Supply to Primary and Secondary Schools UEL005F - 34 | The Office of Government Procurement | Electric Ireland | | €67,735,257 |
| Specialised Care Services Clinical Management System ‘Community Connect’ | Health Service Executive (HSE) | Intersystems BV | | €65,010,160 |
| Provision of Facilities Management ServicesRestricted Procedure | Dublin City University | Mitie Facilities Management Limited | | €65,000,000 |
| Limerick to Foynes Line Track & Civils ConstructionCompetitive Procedure With Negotiation | Iarnród Eireann-Irish Rail | John Sisk & Son (Holdings) Limited | | €64,967,398 |
| The Development of the Crawford Art Gallery, Emmett Place, CorkOpen Procedure | Office of Public Works (OPW) | PJ Hegarty and Sons Building Contractor (Cork) | | €61,338,106 |
| Mini-competition for supply of Natural Gas to the Education Sector: Primary and Secondary schools, ETB's, Third Level Education InstitutionsDirect Invite – Mini-Competition | The Office of Government Procurement | SSE Airtricity Limited | | €60,277,847 |
| Provision of offsite, serviced sub-acute bed facility to St James’s HospitalOpen Procedure | St James's Hospital | Carechoice Holdings Limited | | €60,000,000 |
| Request for Tenders for the Provision of Electricity Supply to Primary and Secondary SchoolsDirect Invite – Mini-Competition | The Office of Government Procurement | Electric Ireland | | €58,720,817 |
| ITC014F-01-009 Competition for WAN Connectivity for OGCIO Category 1Direct Invite – Mini-Competition | Office of the Government Chief Information Officer | Gas Networks Ireland | | €57,130,800 |
| ITC014F-01-009 Competition for WAN Connectivity for OGCIO Category 1Direct Invite – Mini-Competition | Office of the Government Chief Information Officer | Virgin Media Ireland Limited | | €57,130,800 |
| Request for Tenders for the Provision of Electricity Supply to Government Agencies and BodiesDirect Invite – Mini-Competition | The Office of Government Procurement | Electric Ireland | | €54,868,848 |
| Provision of Contracted Satellite Haemodialysis Unit for Kilkenny | Health Service Executive (HSE) | Fresenius Medical Care (Ireland) Limited | | €54,399,685 |
| FCC/237/24 - Development Partner for the Developed Design, Construction, Delivery and Sale of a mixed tenure development at Mooretown, Swords, Co. DublinRestricted Procedure | Fingal County Council | Glenveagh Living Limited | | €52,893,000 |
| Provision of Public Bus Services on the Eastern Coastal Commuter CorridorRestricted Procedure | National Transport Authority | Bus Eireann | | €52,555,823 |
| CFT5188813 ISW023F-1-025-PROJ000010050 Mini-Competition for Microsoft Solution Renewals and Associated Services for Department of JusticeDirect Invite – Mini-Competition | Department of Justice, Home Affairs and Migration | Softcat PLC | | €52,124,010 |
| 8269 - Provision of On Board Catering Services to Irish Rail for Republic of Ireland Services and the Dublin to Belfast Service | Iarnród Eireann-Irish Rail | CCSL - (Corporate Catering Services Ltd) | | €51,965,116 |
| 8269 - Provision of On Board Catering Services to Irish Rail for Republic of Ireland Services and the Dublin to Belfast ServiceCompetitive Procedure With Negotiation | Iarnród Eireann-Irish Rail | CCSL - (Corporate Catering Services Ltd) | | €51,616,111 |
| Provision of SAP Build and Implementation Support for the HSE's Integrated Financial Management SystemCompetitive Procedure With Negotiation | Health Service Executive (HSE) | IBM Ireland Limited | | €51,452,480 |
| RFT 1618- Design and Delivery of a Sustainable Integrated Mixed Tenure Housing Development at Kilcarbery, Clondalkin, Dublin 22. | South Dublin County Council | Adwood Limited | | €51,414,648 |
| UGF010F-2 SRFT Mini-Competition for the supply of Natural Gas to HSE and the Health SectorDirect Invite – Mini-Competition | The Office of Government Procurement | Bord Gais Energy Limited | | €51,389,364 |
| Provision of Campus and Hybrid Working Technology Managed Service for the Central Bank of IrelandOpen Procedure | Central Bank of Ireland | PlanNet21 Communications | | €50,000,000 |
| Programme Integration Team Services in Relation to the BusConnects ProgrammeOpen Procedure | National Transport Authority | Ernst and Young | | €50,000,000 |
| IHW025F-3-006 Mini-competition for personal and notebook computers for Health Service Executive (Personal & Notebook Computers Lot 3 - mini-competitions).Direct Invite – Mini-Competition | Health Service Executive (HSE) | PFH Technology Group Limited | | €50,000,000 |
| 8947 - Provision of Security ServicesCompetitive Procedure With Negotiation | Iarnród Eireann-Irish Rail | Bidvest Noonan (Roi) Limited | | €49,903,367 |
| Managed Cleaning ServicesCompetitive Procedure With Negotiation | Iarnród Eireann-Irish Rail | Ocs One Complete Solution Limited | | €49,863,349 |