United Kingdom
- Aberdeen Harbour Board
- Argyll & Bute Council
- Associated British Ports – Ayr & Troon
- Associated British Ports – Barrow
- Associated British Ports – Cardiff & Barry
- Associated British Ports – Fleetwood
- Associated British Ports – Garston
- Associated British Ports – Humber
- Associated British Ports – Ipswich
- Associated British Ports – King’s Lynn
- Associated British Ports – Lowestoft
- Associated British Ports – Newport
- Associated British Ports – Plymouth
- Associated British Ports – Silloth
- Associated British Ports – Southampton
- Associated British Ports – Swansea & Port Talbot
- Associated British Ports – Teignmouth
- Belfast Harbour Commissioners
- Blyth Harbour Commission
- Cattewater Harbour Commissioners (Cattewater, Plymouth)
- Chichester Harbour Conservancy
- Clydeport Operations Limited
- Cromarty Firth Port Authority
- Cowes Harbour Commission
- Dart Harbour and Navigation Authority
- Dover Harbour Board
- Falmouth Harbour Commissioners
- First Corporate Shipping Limited (Bristol)
- Folkestone Harbour Company (Folkestone)
- Forth Ports plc
- Fowey Harbour Commissioners
- Fraserburgh Harbour Commissioners
- Gloucester Harbour Trustees
- Great Yarmouth Port Authority (Great Yarmouth)
- Hampshire County Council (Hamble, River Hamble)
- Harwich Haven Authority
- Heysham Port Limited
- Imerys Minerals Ltd (Par)
- Inverness Harbour Trust (Inverness, Inverness Firth)
- King's Lynn Conservancy Board
- Langstone Harbour
- Larne Harbour Limited (Larne, Cairnryan)
- Lerwick Port Authority
- Littlehampton Harbour Board
- Londonderry Port and Harbour Commissioners
- Manchester Ship Canal Company
- Mersey Docks & Harbour Company (Mersey, Liverpool, Birkenhead)
- Milford Haven Port Authority
- Montrose Port Authority
- Newhaven Port and Properties Limited
- Orkney Islands Council
- Padstow Harbour Commissioners
- PD Teesport
- Peel Ports Medway (Port of Sheerness Ltd)
- Peterhead Port Authority (Peterhead Bay, Peterhead Harbour)
- Poole Harbour Commissioners
- Port of Boston Limited
- Port of London Authority
- Port of New Ross
- Port of Sunderland
- Port of Tyne Authority (Tyne)
- Port of Wisbech Authority
- Port of Workington
- Portland Harbour Authority Limited
- Ports of Truro & Penryn
- Portsmouth Commercial Port
- Salcombe Harbour
- Seaham Harbour Dock Company
- Scrabster Harbour Trust
- Shetland Islands Council
- Shoreham Port Authority
- Stena Line Ports Limited (Fishguard, Fleetwood, Holyhead, Stranraer)
- Teignmouth Harbour Commission
- Thanet District Council (Ramsgate)
- Torbay Council Marine Services (Tor Bay; Torquay, Brixham, Paignton)
- Ullapool Harbour Trustees
- Warrenpoint Harbour Authority
- Weymouth & Portland Borough Council
- Whitstable Harbour
Channel Islands
- Jersey Harbours
- States of Guernsey Harbour Authority
Isle of Man
- Isle of Man Harbours Division
Republic of Ireland
- Bantry Bay Harbour Commissioners
- Drogheda Port Company
- Dublin Port Company
- Dun Laoghaire Harbour Company
- Galway Harbour Company
- Kinsale Harbour Commissioners (Kinsale)
- Port of Cork Company
- Port of Waterford Company (Waterford)
- Shannon Foynes Port Company (River Shannon, Limerick, Foynes)
National hydrographic offices
- Argentina
- Belgium
- Brazil
- Croatia
- Iceland
- Malta
- Netherlands
- Oman
- Portugal
- South Africa
- Spain
Other data providers
- Civil Aviation Authority
- Maritime & Coastguard Agency