List of Member States of the International Hydrographic Organization

As of May 2024^[update], the International Hydrographic Organization (IHO) comprised 100 Member States, two of which are suspended because of their lapsed annual financial contribution. The IHO identifies its representative member organisations as the respective national hydrographic office(s). These organisations may themselves be part of wider national maritime or other administrations covering a larger range of tasks – such as the national organisations for transport, maritime regulation, environment, defence or oceanography. For example, in Norway and New Zealand the hydrographic offices are sub-organisations of the country's national geodata organisation; in the UK and France, they are part of the Ministry of Defence; in Finland the hydrographic Office is part of the department of transport. The up to date list of IHO Member States, their representative organisations and contact details are maintained in the IHO Yearbook - available at www.iho.int

List

Albania – Albanian Hydrographic Service
Algeria – Hydrographic Office of the Algerian National Navy
Angola – Instituto Hidrografico e de Signalização Maritíma de Angola (IHSMA)
Argentina – Argentine Naval Hydrographic Service
Australia – Australian Hydrographic Service
Bahrain – Bahraini Hydrographic Survey Directorate
Bangladesh – Bangladeshi Directorate of Hydrography
Belgium – Flemish Hydrography
Brazil – Brazilian Directorate of Hydrography and Navigation
Brunei – Brunei Directorate of Hydrography and Navigation
Bulgaria – Hydrographical Service at Ministry of Defense
Cabo Verde – Instituto Maritimo Portuario (IMP)
Cameroon – Autonomous Port of Douala
Canada- Canadian Hydrographic Service
Chile – Hydrographic and Oceanographic Service of the Chilean Navy
China – Chinese Maritime Safety Administration
Colombia – Colombian National Ministry of Defence, Colombian Navy, General Maritime Directorate
Croatia – Hydrographic Institute of the Republic of Croatia
Cuba – Cuban National Office of Hydrography and Geodesy
Cyprus – Cypriotic National Hydrographic Committee, The Department of Lands and Surveys
Democratic Republic of Congo – Ministry of Transport and Communications, Ports and Studies Division
Democratic People's Republic of Korea – DPRK Hydrographic Department
Denmark – Danish Geodata Agency
Dominican Republic – Hydrographic Service of the Navy of the Dominican Republic
Ecuador – Oceanographic Institute of the Ecuadorian Navy
Egypt – Egyptian Navy Hydrographic Department
Estonia – Estonian Maritime Administration (Aids to Navigation and Hydrography Division)
Fiji – Republic of Fiji Navy Hydrographic Office
Finland – Finnish Transport Agency Hydrographic Office
France – Naval Hydrographic and Oceanographic Service
Georgia – State Hydrographic Service of Georgia
Germany – Federal Maritime and Hydrographic Agency of Germany
Ghana – Maritime Authority, Ministry of Transport
Greece – Hellenic Navy Hydrographic Service
Guatemala – Guatemalan Ministry of Defence, General Directorate of Maritime Affairs
Guyana – Maritime Administration Department
Iceland – Icelandic Coast Guard Hydrographic Department
India – Indian Naval Hydrographic Department
Indonesia – Indonesian Hydro-Oceanographic Service
Iran – Iranian Ports and Maritime Organisation
Iraq – Ministry of Transport and Communications - General Company for Iraqi Ports, Basrah
Ireland – Irish Marine Survey Administration
Italy – Italian Hydrographic Institute
Jamaica – Jamaican Surveys and Mapping Division
Japan – Japanese Hydrographic and Oceanographic Department
Kenya – Survey of Kenya
Kiribati – Republic of Kiribati
Kuwait – Kuwait Ministry of Communications
Latvia – Maritime Administration of Latvia, Hydrographic Service
Lebanon – Lebanese Navy Hydrogaphic Service
Malaysia – Malaysian National Hydrographic Centre
Malta – Transport Malta, Ministry for Transport and Infrastructure
Mauritius -Mauritian Ministry of Housing and Lands
Mexico – General Directorate of Oceanography, Hydrography and Meteorology of the Mexican Navy
Monaco – Monaco Directorate of Naval Affairs
Montenegro – Institute of Hydrometeorology and Seismology of Montenegro
Morocco – Hydrography, Oceanography and Cartography Division of the Royal Moroccan Navy
Mozambique – Mozambican National Institute of Hydrography and Navigation
Myanmar – Myanmar Naval Hydrographic Centre
Netherlands – Dutch Hydrographic Service
New Zealand – Land Information New Zealand
Nigeria – Nigerian Navy Hydrographic Office
Norway – Norwegian Hydrographic Office
Oman – National Hydrographic Office of the Royal Navy of Oman
Pakistan – Hydrographic Department of the Pakistani Navy
Papua New Guinea – National Maritime Safety Authority of Papua New Guinea
Peru – Peruvian Directorate of Hydrography and Navigation
Philippines – Philippine National Mapping and Resource Information Authority
Poland – Hydrographic Office of the Polish Navy
Portugal – Portuguese Hydrographic Institute
Qatar – Qatari Ministry of Municipality and Urban Planning
Romania – Romanian Maritime Hydrographic Directorate
Russia – Russian Hydrographic Service
Samoa – Ministry of Works, Transport and Infrastructure
Saudi Arabia – Saudi Arabian General Commission for Survey
Seychelles – Seychelles Maritime Safety Authority
Singapore – Hydrographic Department, Maritime and Port Authority of Singapore
Slovenia – Slovenian Ministry of Infrastructure
Solomon Islands – Solomon Islands Maritime Safety Administration
South Africa – South African Hydrographic Office
South Korea – Korea Hydrographic and Oceanographic Agency
Spain – Hydrographic Institute of the Royal Spanish Navy
Sri Lanka – Sri Lankan National Hydrographic Office, National Aquatic Resources Research and Development Agency
Suriname – Maritime Authority Suriname
Sweden - Swedish Maritime Administration
Thailand – Hydrographic Department of the Royal Thai Navy
Tonga – Tongan Ministry of Infrastructure
Trinidad and Tobago – Hydrographic Unit, Ministry of Agriculture & Marine Resources, Lands and Surveys Division
Tunisia – Hydrographic and Oceanographic Centre of the Tunisian Navy
Turkey – Turkish Office of Navigation, Hydrography and Oceanography
Ukraine – State Hydrographic Service of Ukraine
United Arab Emirates – Ministry of Communications, National Port Authority of the United Arab Emirates
United Kingdom – United Kingdom Hydrographic Office
United States – Office of Coast Survey; National Ocean Service; National Geospatial-Intelligence Agency
Uruguay – Oceanographic, Hydrographic and Meteorological Service of the Uruguayan Navy
Vanuatu – Ministry of Lands, Geology, and Minerals
Venezuela – General Command of the Venezuelan Navy, Directorate of Hydrography and Navigation
Vietnam – Naval Command of Vietnam

Suspended

Serbia – Serbian Directorate for Inland Waterways - suspended since 1 January 2013
Syria – Syrian General Directorate of Ports - suspended since 1 June 2018

Footnotes

External links