| Ministry of the Sea o DGPM (Directorate General for Maritime Policy) | Responsible for MSP policies. |
| o DGRM (Directorate General of Natural Resources, Security and Maritime Services) | Responsible for the implementation of MSP |
| o IPMA (Portuguese Institute of the Sea and Atmosphere) | Responsible for research projects reverting to direct applications to use in operational activity. Searches for a progressive improvement of information provided to users, with the concern oriented to safeguarding people and property. |
| CIAM (Interministerial Commission for Maritime Affairs) | Coordination and monitoring of cross-cutting policies. Responsible to oversee the correct implementation of the National Sea Strategy. |
| Ministry of Environment and Climate Action o Portuguese Environment Agency (APA) | EIA national Authority; Regulates coastal zone planning and management |
| Ministry of National Defense | Maritime security and national defense. |