Hydrography and Related Matters

• International Hydrographic Organization (IHO) - www.iho.shom.fr
• HMS Endurance Tracking Project - www.visitandlearn.co.uk
• Hydrographic Society (UK) - www.hydrographicsociety.org
• MPA (Port of Singapore) - www.mpa.gov.sg
• NOAA (USA) - www.noaa.gov
• Office of Coast Survey (USA) - www.nauticalcharts.noaa.gov
• NGA (USA) - www.nga.mil
• International Maritime Organization (IMO) - www.imo.org
• Australian Hydrographic Service - www.hydro.gov.au

UK Government, Public Bodies and Bodies with Statutory Duties

• Ministry of Defence - www.mod.uk
• Maritime & Coastguard Agency (MCA) - www.mcga.gov.uk
• Meteorological Office -  www.metoffice.gov.uk
• Ordnance Survey - www.ordnancesurvey.co.uk
• Royal Navy - www.royal-navy.mod.uk
• Port of London Authority - www.portoflondon.co.uk
• Trinity House - www.trinityhouse.co.uk
• Freedom Of Information Act 2000 - MOD Publication Scheme - www.foi.mod.uk
• Royal National Lifeboat Institution (RNLI) - www.lifeboats.org.uk
• Directgov - www.directgov.gov.uk
  

Official ENC Services and ECDIS Manufacturers

• IC-ENC - www.ic-enc.org
• Chersoft - www.chersoft.co.uk
• Primar - www.primar-stavanger.org
• Warsash Maritime Academy (ECDIS training) - www.warsashacademy.co.uk

Oceanography

• British Oceanographic Data Centre (BODC) - www.bodc.ac.uk and www.oceannet.org
• UK Marine Information Council - www.ukmarine.org
• UNEP World Conservation Monitoring - www.unep-wcmc.org
• Southampton Oceanography Centre - www.soc.soton.ac.uk
• International Boundaries Research Unit at Durham University - www-ibru.dur.ac.uk
• International Council for the Exploration of the Seas (ICES) - www.ices.dk
• ICES Marine Data Collection Guidelines - www.ices.dk/committe/occ/mdm/guidelines

Digital Bathymetry

• British Geological Survey - www.bgs.ac.uk

Professional Bodies

• Association for Geographic Information - www.agi.org.uk
• UK P&I Club - www.ukpandi.com
• British Cartographic Society - www.cartography.org
• Intergovernmental Group on Geographic Information www.iggi.gov.uk
• Institute of Marine Engineering, Science and Technology (IMarEST) www.imarest.org
• Nautical Institute - www.nautinst.org
• Royal Institute of Navigation - www.rin.org.uk
• Sea Vision UK - www.seavisionuk.org
• Society of Cartographers - www.soc.org.uk

Shipping and Port Information

• Shipping Guides Ltd - www.portinfo.co.uk
• Shipping Facts - www.shippingfacts.com
• Maritime Publications - www.portsofscotland.co.uk

UKHO Collaborative Ventures

• ICZ Map (UKHO, Ordnance Survey, British Geological Survey) - www.iczmap.org.uk
• OceanNet (Marine Environmental Data Action Group - part UKHO funded venture) - www.oceannet.org
• Integrated Coastal Hydrography - www.coastalhydrography.com

Marine Trade Associations

• British Marine Industries Federation - www.bmif.co.uk
• Chart & Nautical Instruments Trade Association (CNITA) - www.cnita.com
• Society of Maritime Industries - www.maritimeindustries.org

UKHO Sponsorship and Support

• Clipper 05-06 Round the World Yacht Race - www.clipper-ventures.com
• SeaBritain 2005 - www.seabritain.com
• United Nations Environmental Programme (UNEP) - www.unep.org

Admiralty Licensed Partners

• AtoBviaC plc - www.atobviac.com
• Novo - www.novogroup.com
• Terrafix - www.terrafix.co.uk

Joint Venture Companies

• SeaZone Solutions Ltd - www.seazone.com

Fishing (Fishing Charts and Publications)

• Sea Fish Industry Authority - www.seafish.org

Yachting and Sailing

• Royal Yachting Association - www.rya.org.uk
• Cruising Association - www.cruising.org.uk