| PISCES | Pacific International Space Center for Exploration Systems 
| Others |
| PISCES | Performance and Innovation in the SRF Creating Environmental Success
| Others |
| PISCES | Performance Improving Self Contained Exoskeleton for Swimming
| Others |
| PISCES | Personal Identification Secure Comparison and Evaluation System
| Others |
| PISCES | Plant Inspection Services and Certification Electronic System
| Others |
| PISCES | Policy Innovation Systems for Clean Energy Security
| Others |