General Lighthouse Authorities

Sales Contact:


Trinity House
Tower Hill
London EC3N 4DH

About Us:
The General Lighthouse Authorities of the United Kingdom and Ireland (GLAs) comprise:

• Trinity House

• Northern Lighthouse Board

• Commissioners of Irish Lights

The Research and Radionavigation Directorate (R&RNAV) undertakes research and development of physical and radio marine aids to navigation (AtoNs), support systems and their integration to support the GLAs' mission "to deliver a reliable, efficient and cost-effective Aids to Navigation service for the benefit and safety of all mariners".

Key research areas include Marine e-Navigation, Global Navigation Satellite Systems and their augmentation, Enhanced Loran, Automatic identification Systems and Virtual Aids to Navigation, and Visual Signaling including Lights.