Geda have completed many reservoirs in Northern Ireland for NI Water.

Location | Capacity (Megalites) |
| Ballykeel reservoir - Banbridge | - |
| Duneight Reservoir - Lisburn | 4.5 |
| Ballywonard Reservoir - Mallusk | 12 |
| Babylon Hill Reservoir - Tandragee | 4.6 |
| Knock High & Low Reservoir - Rathfriland | 4 |
| Deehommed Reservoir - Hilltown | 1.6 |
| Tattinbar Reservoir - Lisnaskea | 4.5 |
| Ballyregan/Carrowreagh stage 1- Dundonald | 6 |
| Ballyvaston Service Reservoir - Glengormley | 2 |
| Ballyhowne - Monkstown | 5 |
| Lisnabreeny Reservoir | 9 |
| Cabragh Reservoir | 2 |
| Drumbunnion Reservoir | 1 |
| Coagh Service Reservoir | - |
| Garstings Hill Reservoir - Ballymena | 8 |
| Craigs Service Reservoir - Cookstown | - |