| Health Service Executive (HSE) | Construction & Infrastructure | 53 |
| Department of Housing Local Government and Heritage | Construction & Infrastructure | 42 |
| Office of Public Works (OPW) | Construction & Infrastructure | 31 |
| Dublin City Council | Construction & Infrastructure | 28 |
| Tipperary County Council | Construction & Infrastructure | 26 |
| Education Procurement Service (EPS) | Manufacturing & Supply | 22 |
| Cork County Council | Construction & Infrastructure | 17 |
| Louth and Meath Education and Training Board 1384 | Education & Training | 17 |
| Cork City Council | Construction & Infrastructure | 16 |
| Iarnród Eireann-Irish Rail | IT & Telecom | 16 |
| Irish Defence Forces_1144 | Education & Training | 16 |
| Department of Agriculture Food and the Marine | Construction & Infrastructure | 15 |
| Department of Education and Youth | Construction & Infrastructure | 15 |
| Donegal County Council_1193 | Construction & Infrastructure | 14 |
| IDA Ireland | Construction & Infrastructure | 14 |
| Mayo County Council | Construction & Infrastructure | 14 |
| Raidió Teilifís Éireann ( RTÉ ) | IT & Telecom | 14 |
| Waterford City and County Council | Construction & Infrastructure | 14 |
| Carlow County Council | Construction & Infrastructure | 13 |
| Inland Fisheries Ireland | Construction & Infrastructure | 13 |
| Kildare County Council_385 | Construction & Infrastructure | 13 |
| Limerick and Clare Education and Training Board | Education & Training | 13 |
| Kildare and Wicklow Education and Training Board | Construction & Infrastructure | 12 |
| Beaumont Hospital_403 | Healthcare & Pharma | 11 |
| Cavan County Council | Construction & Infrastructure | 11 |
| Electricity Supply Board ( ESB ) | IT & Telecom | 11 |
| Monaghan County Council | Construction & Infrastructure | 11 |
| South Dublin County Council | Financial & Professional Services | 11 |
| Cavan and Monaghan Education and Training Board | Construction & Infrastructure | 10 |
| Laois County Council | Construction & Infrastructure | 10 |
| Maynooth University | IT & Telecom | 10 |
| National Transport Authority_1149 | Financial & Professional Services | 10 |