| PSIG | Patent And Standards Interest Group 
| Others |
| PSIG | Patents and Standards Interest Group
| Others |
| PSIG | Pci Special Interest Group
| Others |
| PSIG | Pediatric Special Interest Group
| Others |
| PSIG | Peloton de surveillance et d'intervention de la gendarmerie
| Others |
| PSIG | Pelotons de Surveillance et d'Intervention de la Gendarmerie
| Others |
| PSIG | Per Square Inch Gauge
| Others |
| PSIG | Pfizer Strategic Investments Group
| Others |
| PSIG | Pipeline Simulation Interest Group
| Others |
| PSIG | Platform Special Interest Group
| Others |
| psig | Pounds per Square Inch Gage
| Others |
| PSIG | Pounds per Square Inch Gauge
| Others |
| PSIG | Pounds per Square Inch, Gauge
| Others |
| PSIG | Pre-School Incentive Grant
| Others |
| PSIG | Propulsion Systems Integration Group
| Others |
| PSIG | Psipipeline Simulation Interest Group
| Others |
| PSIG | Public Sector Innovation Group
| Others |