| Orlin Technology Ltd | Fingal County Council |
| Ornua Co-operative Ltd | |
| OSD Digital Agency | Sligo County Council |
| Ostoform Ltd | |
| OTG42 | Dublin City Council |
| Outsource Graphix Ltd | Dublin City Council |
| Ovoca Bio plc | |
| Paper Dock | Dublin City Council |
| PaqIT Solutions | Limerick City and County Council |
| Par Pharmaceutical | Dublin City Council |
| PasRM | |
| Paulo Goode | Cork County Council |
| PaymentPlus | |
| Payslip | |
| Payzone | Dublin City Council |
| PC Peripheral | Dún Laoghaire-Rathdown County Council |
| Peat Wholesale Ltd | Dublin City Council |
| Pegasus Capital | Dublin City Council |
| PepTalk | |
| Perfuze | |
| Perrigo Company plc | |
| Personal Computer Science (Ireland) Ltd | Mayo County Council |
| Pewter Games Studios | |
| PFH Technology Group | Dún Laoghaire-Rathdown County Council |
| phoneLot | Dublin City Council |
| PhonePulse | |
| PhoneWatch | |
| Phorest Salon Software | Dublin City Council |
| Picography | |
| Piercom Ltd | Clare County Council |
| Pingy | Dublin City Council |
| Pippin Software Ltd | South Dublin County Council |
| PixAlert | Dublin City Council |
| Pixel Web Design | Dublin City Council |
| PixelSoup | Dublin City Council |
| PlanNet21 Communications | |
| PlanWare | Dún Laoghaire-Rathdown County Council |
| PlasmaBound | |
| Plastic Hallway | Dublin City Council |
| PlayTank | Dublin City Council |
| Plus 10 Coworking & Start-up Space | |
| Pocket Anatomy | Galway City Council |
| Polypico Technologies Ltd | |
| POMS Cloud Ltd | |
| Poppulo | Cork City Council |
| Portview Marketing Ltd | |
| POStech Ltd | Dublin City Council |
| Power Capital | |
| PrideDesign | Cork City Council |
| Primary Position | Cork City Council |