Northern Ireland Fishery Harbour Authority
- Responsible for managing, maintaining and improving the fishing harbours and harbour estates of Ardglass, Kilkeel and Portavogie. Includes port information, marine safety code and waste management procedures.
- http://www.nifha.fsnet.co.uk/

Port of Larne
- Offers freight, passenger and commercial travel each day to Cairnryan, Fleetwood and Troon.
- http://www.portoflarne.co.uk/

Port of Belfast
- Details of facilities, regular services and annual report.
- http://www.belfast-harbour.co.uk/