National Organisations

United Kingdom & Ireland
British Antarctic Survey
British Geological Survey
Gazetteer for Scotland
Highways Agency
Isle of Man Survey
The National Gazetteer of Wales
Ordnance Survey
Ordnance Survey Ireland
Ordnance Survey of Northern Ireland
The Permanent Committee on Geographical Names for British Official Use
Placenames Database of Ireland
Royal Geographical Society
Scottish Placename Society
UK Hydrographic Office
Ulster Placename Society

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Overseas
Albania : Aluizni
Algeria : Institut National de Cartographie et Télédétection
Andorra : Ministeri d'Ordenament Territorial
Antarctica : British Antarctic Survey; LINZ
Argentina : IGN Instituto Geografico Nacional
Armenia : State Committee of the Real Property Cadastre
Australia : Australian Placenames; Geoscience Australia; ACT Planning & Land Authority; New South Wales Dept of Lands; NT Maps & Data; Queensland Mapping & Surveying dept; SA Land & Maps; Victoria Land Channel; WA Landgate
Austria : BEV Bundesamt für Eich- und Vermessungswesen; On-line map
Bahrain : Survey & Land Registration Bureau
Belarus : Belcartographiya; State Committee on Property
Belgium : IGN Institut Géographique National
Bhutan : National Land Commission of Bhutan
Bolivia : IGM Instituto Geografico Militar; IGM Santa Cruz
Bosnia & Herzegovina : Federal Geodetic Administration; Republic Authority for Geodetic and Property Affairs of Republic of Srpska
Botswana : Department of Surveys And Mapping
Brazil : Instituto Brasileiro de Geografia e Estatística
Brunei : Survey Department
Bulgaria : Geodesy, Cartography and Cadastre Agency
Chile : IGM Insituto Geografico Militar
China : State Burea of Surveying and Mapping
Colombia : IGAC Instituto Geografico Agustin Codazzi
Cyprus : Department of Lands and Surveys
Czech Republic : CUZK - Czech Office for Surveying, Mapping and Cadastre; VUGTK - Research Institute of Geodesy, Topography and Cartography
Canada : Canada Topo maps; Geographical Names of Canada
Coatia : State Geodetic Administration
Denmark : KMS National Survey and Cadastre; Scanmaps
Dominican Republic : ICM Instituto Cartografico Militar
Ecuador : IGM Insituto Geografico Militar
Egypt : Egyptian Survey Authority
Estonia : Estonian Map Centre; Estonia on-line mapping; Estonia Placenames database
Ethiopia : Ethiopian Mapping Authority
Fiji : Department of Lands and Surveys
Finland : National Land Survey; Karttakeskus map shop
France : IGN Institut Géographique National
Georgia : Ministry of Environment Protection and Natural Resources
Germany : Federal Agency for Cartography & Geodesy
Greece : HMGS Hellenic Military Geographical Service
Guatemala : Instituto Geográfico Nacional
Hong Kong : Survey and Mapping Office
Hungary : Institute of Geodesy, Cartography and Remote Sensing (FÖMI); Cartographia
Iceland : LMI National Land Survey of Iceland
India : Survey of India
Indonesia : National Co-ordinating Agency for Surveys and Mapping
Iran : National Cartographic Center
Israel : Survey of Israel
Italy : IGM Istituto Geografico Militare
Jamaica : National Land Agency
Japan : GSI Geographical Survey Institute
Jordan : Royal Jordanian Geographic Centre
Kenya : KNSDI Kenya National Spatial Data Infrastructure
Korea : National Geographic Information Institute
Kosovo : Kosovo Cadastral Agency
Latvia : LGIA Latvian Geospatial Information Agency; Jana Seta map shop
Lebanon : Direction des Affaires Géographiques
Lithuania : National Land Service; VZI Valstybinis žemėtvarkos institutas
Luxembourg : ACT Administration du Cadastre et de la Topographie à Luxembourg
Macedonia : Real Estate Cadastre Agency of the Republic of Macedonia
Madagascar : FTM Foiben-Taosaritanin'i Madagasikara
Malta : Malta Environment & Planning Authority
Mexico : INEGI
Moldova : State Agency for Land Relations and Cadastre
Mozambique : Centro Nacional de Cartografia e Teledetecção
Nepal : Survey Department
Netherlands : Kadaster; ANWB on-line maps; Placenames database
New Zealand : LINZ Maps & Topographic Services; New Zealand Geographic Board - Placenames and Street names
Nicaragua : Instituto Nicaragüense de Estudios Territoriales
Nigeria : Surveyor General of the Federation
Norway : Statens Kartverk on-line map; Ugland IT
Oman : National Survey Authority
Papua New Guinea : National Mapping Bureau
Peru : IGN Instituto Geográfico Nacional
Poland : GUGK Główny Urząd Geodezji i Kartografii
Portugal : IGP Instituto Geográfico Português; On-line maps
Romania : Oficiul de Cadastru si Publicitate Imobiliară Vâlcea
Russia : Aerogeodeziia St Petersburg; Khabarovsk 488 Military Cartographic Factory; Moscow Aerogeodetic Enterprise; Moscow Aerogeodetic Enterprise [another site]; Omsk Cartographic Factory; North-West Regional Production Centre for Geoinformation and Mining Surveying; Siberian Scientific-Investigational and Production Centre for Geo-Information and Applied Geodesy (Novosibirsk); Upper Volga Aerogeodetic Enterprise (Nizhne Novgorod) UralGeoInform (In English)
Senegal : DTGC Direction des Travaux géographiques et cartographiques
Serbia : Republic Geodetic Authority
Qatar : Center for GIS
Singapore : Singapore Land Authority
Slovenia : Surveying and Mapping Authority; GZS Kod & Kam map shop
Slovakia : Geodesy, Cartography and Cadastre Authority of the Slovak Republic
South Africa : Chief Directorate Surveys & Mapping; South African Geographical Names
Spain : CNIG Centro Nacional de Información Geográfica; (Catalonia) ICC Institut Cartogràfic de Catalunya
Sri Lanka : Survey Department
Swaziland : Surveyor General
Sweden : Landmateriet Swedish mapping, cadastral and land registration authority; Gazetteer; Kartforlaget map shop
Switzerland : Swisstopo; SwissGeo on-line map
Thailand : Royal Thai Survey Department
Tunisia : Topography & Cadastral Office
Turkey : General Command of Mapping
Ukraine : Ukraine Cartographia
United Arab Emirates : UAE Military Survey Department
United States : U.S. Geological Survey; U.S. Board on Geographic Names
Uruguay : Servicio Geográfico Militar
Venezuela : IGVSB Istituto Geografico de Venezuela Simon Bolivar
Yemen : Survey Authority