| CIRM International Radio Maritime Committee |
| COSPAS-SARSAT International Cospas-Sarsat Programme Agreement |
| EC Commission of the European Communities |
| ESA European Space Agency |
| EUTELSAT European Communications Satellite Organization |
| ICAO International Civil Aviation Organization |
| ICS International Chamber of Shipping |
| ICSC International Civil Service Commission |
| IHO International Hydrographic Organization |
| IMO International Maritime Organization |
| INMARSAT Inmarsat Plc. |
| IOPC International Oil Pollution Compensation Fund |
| ITSO International Telecommunications Satellite Organization |
| ITU International Telecommunication Union |
| UN Broadband Commission |
| UN United Nations |
| World Maritime University |
| World Meteorological Organization |
| Worldwide Met-Ocean Information and Warning Service (WWMIWS) |