| RFT for the Provision of the National Car Testing Service (NCTS)Restricted Procedure | Road Safety Authority (RSA) | Applus Inspection Services Ireland Limited | | €650,000,000 |
| Mini Competition for the Provision of Unmetered Electricity to the Public Sector Bodies in IrelandDirect Invite – Mini-Competition | The Office of Government Procurement | Energia Customer Solutions Limited | | €86,000,000 |
| Service Provider to provide All Contact Centre Customer Service & Sales Activities for Residential & Business CustomersOpen Procedure | Electricity Supply Board ( ESB ) | Abtran Unlimited Company and Field Management Ireland Limited | | €82,000,000 |
| A contractor to provide building works and PSCS services for the fitout of Fitzwilliam 27 (Building B) at ESB site at Lower Fitzwilliam Street, Dublin 2 - ESB REF: SS/CON/3633Open Procedure | Electricity Supply Board ( ESB ) | Walls Construction Limited | | €49,000,000 |
| The Operation of Public Bus Passenger Services on Certain Dublin Commuter RoutesCompetitive Procedure With Negotiation | National Transport Authority | The Go-Ahead Group plc | | €46,469,204 |
| Mini Competition for Supply of Natural Gas to Central Government, Local Authority and Security SectorDirect Invite – Mini-Competition | Department of Public Expenditure and Reform | Bord Gais Energy Limited | | €45,167,402 |
| DS3 System Services - Volume CappedCompetitive Procedure With Negotiation | EirGrid plc | Grid System Services Limited and ScottishPower Renewables (UK) Ltd Deactivated | | €38,400,000 |
| Invitation to Tender for Enforcement of On-Street Parking Services.Open Procedure | Dublin City Council | Tazbell Services Group Designated Activity Company | | €36,677,984 |
| Engineering Design Services for BusConnectsRestricted Procedure | National Transport Authority | Aecom Ireland Limited and 3 others | | €25,895,179 |
| External ICT Support Services for AGSDirect Invite – Mini-Competition | An Garda Síochána | Accenture Limited | | €24,800,000 |
| Mini Competition for the Provision of Lot 3 Contact Management and Related Administration Services for Pobal in Support of the Affordable Childcare Scheme.Direct Invite – Mini-Competition | Pobal | Abtran Unlimited Company | | €24,701,287 |
| Provision of Over the Counter third party receipting services including Online PAYG Top Ups.Open Procedure | Electricity Supply Board ( ESB ) | An Post and 2 others | | €23,000,000 |
| Construction of Research VesselRestricted Procedure | Marine Institute | Astilleros Armon Vigo, S.a. | | €22,300,000 |
| Mini Competition for the provision of an X86 Server Draw Down for HEAnet and HEAnet Customers.Direct Invite – Mini-Competition | The Office of Government Procurement | Dell Products Unlimited Company | | €20,000,000 |
| Interim Start-up Schools 2019 - Temporary Prefabricated AccommodationOpen Procedure | Department of Education and Youth | Cpac Modular Limited and 2 others | | €20,000,000 |
| RFP Supply of 3/4 Ton 4x4 VehiclesRestricted Procedure | Irish Defence Forces | Toyota Ireland Unlimited Company | | €18,000,000 |
| Invitation to Tender for the Provision of Transport Coordination Unit ServicesOpen Procedure | National Transport Authority | Bantry Rural Transport Partnership Ltd T/a Local Link Cork and 14 others | | €17,047,584 |
| N59 Maam Cross to BunnakillRestricted Procedure | Galway County Council | Clare Civil Engineering Co Ltd | | €16,561,765 |
| RFI for Shannon Airport Aircraft Hangar and Taxiway ProjectCompetitive Procedure With Negotiation | Shannon Airport Authority DAC | L. & M. Keating Limited | | €16,494,000 |
| The Operation of Public Bus Passenger Services on Waterford City RoutesCompetitive Procedure With Negotiation | National Transport Authority | Bus Eireann | | €14,404,875 |
| FCL018F-37 Lot 8 - Supplementary Request for Tenders (SRFT) for Commercial Cleaning Services under Lot 8 for the sites of University College DublinDirect Invite – Mini-Competition | The Office of Government Procurement | Bidvest Noonan | | €14,030,501 |
| Inspection of Private Rented Properties in accordance with minimum housing standards regulations for Fingal County Council and Dún Laoghaire Rathdown County CouncilOpen Procedure | Fingal County Council | Arthurstown Construction Limited and Inspex Ltd (D) | | €14,000,000 |
| Ard Cre Phase 2, Social Housing Scheme, 78 dwelling units, Ballymoneen Road, GalwayRestricted Procedure | Galway City Council | J.J. Rhatigan & Company Unlimited Company | | €13,694,190 |
| Provision of Project and Programme Management Resources and ICT Management ResourcesOpen Procedure | National Transport Authority | Abtran Unlimited Company | | €13,639,000 |
| Pre-qualification to Restricted Tender Panel for Smooth Point Pier Extension, Killybegs Fishery Harbour Centre, County DonegalRestricted Procedure | Department of Agriculture Food and the Marine | ABCO Marine (IRL) Ltd | | €12,999,704 |