| SAR | Search And Rescue |
| SARP | Search And Rescue Processor |
| SRR | Search and Rescue Region |
| SARCOM | Search And Rescue Communication |
| GEOSAR | Geostationary Search And Rescue Teil des COSPAS-SARSAT-System |
| SPOC | Search And Rescue Point Of Contact |
| SART | Search And Rescue [Radar] Transponder |
| LEOSAR | Low Earth Orbit Search And Rescue |
| NSS | National Search and Rescue Secretariat |
| SARSAT | Search And Rescue Satellite Aided Tracking |
| RCC | Rescue Coordination Centre |
| MRCC | Maritime Rescue Coordination Center |
| TIER | True Innocents Equine Rescue |
| BHHR | Bosnia Hercegovina Heritage Rescue [engl.] |
| AMVER | Automated Mutual Assistance Vessel Rescue System |
| DASL | DAV Search and Locate |
| DFS | Depth-First Search |
| DFS | Depth First Search |
| BFS | Breadth First Search |
| BFS | Breadth First Search |
| SETI | Search for Extraterrestrial Intelligence |
| SES | Search Engine Strategies |
| SEO | Search Engine Optimization Sucmaschinenoptimierung |
| ISA | International Search Authority |
| DSR | Document Search and Retrieval |
| BMS | Barfeld Media Search Dienstleistungsunternehmen Immobilienwirtschaft |
| MFS | Magnetic tape Field Search |
| ASF | Automated Search Facility [engl.] Datenbanken der Interpol |
| CASS | Computer Assisted Search Service |
| SERP | Search Engine Result Page Suchmaschinen-Ergebnisseiten |
| CUSI | Configurable Unified Search Index |
| CLASS | Cumulative and Linguistic Advanced Search System |
| CSSR | Crystal Structure Search and Retrieval file |
| GIMPS | Great Internet Mersenne Prime Search |
| VDESB | Vereinigung Deutscher Executive-Search-Berater e.V. Bad Homburg v.d.H., http://www.vdesb.de |
| XEWA | XML-Enabled Wide Area Search in Bioinformatics |
| CASSIS | Classification and Search Support Information System [engl.] |
| BLAST | Basic Local Alignment Search Tool [engl.] |
| BASIS | Battelle Automated Search Information System [engl.] |