The United Kingdom Hydrographic Office

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Defence Maritime Geospatial Intelligence Centre

We supply products and services to the Royal Navy and have been supporting the operational effectiveness of Britain’s armed forces for over 200 years. As a Trading Fund of the Ministry of Defence, we fulfil a vital public service in ensuring that useful, accurate and complete data is available to meet defence requirements.


  • Additional Military Layers

    A number of our products include additional digital information that extends our standard products to increase their usefulness within military applications.
  • International Defence Liaison

    We co-operate and collaborate globally with a number of International Defence Partners to enable respective forces to operate more safely and effectively.
  • Maritime Security

    Keep informed about security of navigation issues and safety critical information associated with military operations. Search and download Security Related Information to Mariners from here.