
The Federal Maritime and Hydrographic Agency of Germany is a German federal authority based in Hamburg and Rostock. With some 800 employees, the agency's tasks include maritime safety, hydrographic survey, maritime pollution monitoring, and approvals of offshore installations.

The United States Federal Maritime Commission (FMC) is an independent federal agency based in Washington, D.C. that is responsible for the regulation of oceanborne international transportation of the U.S. It is chaired by Daniel B. Maffei.
The Jordan Maritime Authority (JMA) is a government agency with the responsibility of governing the Red Sea and domestic ports, sea roads and shipping of Jordan. It was established in 2002 by Royal Decree and functions in conjunction with the Ministry of Transport. It is headquartered in Aqaba.

Maritime Administration of DPR Korea, also known as North Korea Maritime Administration Bureau (MAB), is the North Korean maritime authority.

The Maritime and Coastguard Agency (MCA) is an executive agency of the United Kingdom working to prevent the loss of lives at sea and is responsible, through the Secretary of State for Transport to Parliament, for implementing British and international maritime law and safety policy. It is also responsible for land based search and rescue helicopter operations from 2015.

The Maritime Industry Authority, known by the acronym MARINA, is an agency of the Philippine government under the Department of Transportation responsible for integrating the development, promotion and regulation of the maritime industry in the Philippines.

The Puerto Rico Maritime Transport Authority —Spanish: Autoridad de Transporte Marítimo (ATM)— is a government-owned corporation of Puerto Rico charged with providing maritime transportation services for cargo and passengers within Puerto Rico, including the island municipalities of Vieques and Culebra. The agency is ascribed to the Department of Transportation and Public Works and was established by Act No. 1 of January 1, 2000 (PDF)..

The Shipping Control Authority for the Japanese Merchant Marine (SCAJAP) was an organization established by Allied forces in the occupation of Japan after the end of World War II.