Useful Links


For over 20 years Mobilis has been supplying the marine industry with robust, IALA compliant and cost-effective navigation buoys, mooring buoys and zone marking buoys. Leading the field, Mobilis products are constructed using rotationally moulded UV stabilised polyethylene and are renowned for their longevity, strength and adaptability.


IALA approved mooring line calculation software, designed by Mobilis.


Vega design and manufacture lighted navigational aids and optical, electronic and electro-mechanical instruments. These have been used predominantly for the guidance of ships. Since its establishment in 1972 Vega has developed many types of signal lights. These have all made a significant contribution to transport safety in many parts of the world.

Vega Calculators
Calculations and tables for day and night ranges.

Carlier Chaines SAS
Carlier Chaines SAS has been manufacturing quality chains and equipment for marine, offshore, lifting and industrial applications since 1930. Every chain link is individually tested and, where required, certified by Lloyds or Bureaux Veritas.

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In the last 15 years Echomax radar reflectors have become one of the best known radar reflectors in the world. From early sales to pleasure vessels they are now fitted by many of the leading buoy manufacturers in Europe and as far away as Australia, Port and Harbour Authorities, many foreign Navies including US Nuclear Submarines.

Orolia group develop and market precision electronic systems and software (ranging from distress beacons, tracking systems, atomic clocks, synchronization systems, and more) to critically manage positioning, navigation, timing, supervision and communication in difficult environments where standard tools are inadequate.

International Association of Marine Aids to Navigation and Lighthouse Authorities.

Trinity House
Trinity House is the General Lighthouse Authority for England, Wales, the Channel Islands and Gibraltar, responsible for a range of general aids to navigation, from lighthouses to radar beacons. The safety of shipping, and the wellbeing of seafarers, have been our prime concerns since Trinity House was granted a Charter by Henry VIII in 1514.

Northern Lighthouse Board
The Northern Lighthouse Board is the General Lighthouse Authority for Scotland and the Isle of Man. The Northern Lighthouse Board’s principal concern is with safety: the safety of the mariner at sea; the safety of our own people employed in or around some of the world’s most dangerous coastlines; and the safety of the environment in which we, and those who come after us, must live and work.

The Commissioners of Irish Lights
The Commissioners of Irish Lights is the General Lighthouse Authority for all of Ireland, its adjacent seas and islands. CIL carry out the obligations of the British & Irish Governments in relation to the provision of Aids to Navigation (AtoN) around the coast of Ireland commensurate with the amount of traffic and degree of risk under the Safety of Life at Sea Convention (SOLAS).

British Marine Federation
The British Marine Federation is the Trade Association for the UK Marine Leisure Industry, with our Membership drawn from both the seagoing and inland sectors of the marine industry, and supporting services.

United Kingdom Harbour Masters Association
Supporting Harbour Masters and members throughout the United Kingdom.

Yacht Harbour Association
The Yacht Harbour Association is established to develop the marine industry by specifically supporting Marina members of the British Marine Federation. We help boat users find good quality marinas and help marina businesses improve their services and operate to high, modern standards.

The UK’s leading renewable energy trade association – supporting the development of UK wind & marine energy.

The Royal Institute of Navigation
The Royal Institute of Navigation (RIN) is a learned society with charitable status. Formed in 1947, its aims have been: to unite all those with a professional or personal interest in any aspect of navigation in one unique body; to further the development of navigation in every sphere;  to increase public awareness of the art and science of navigation.

Annual commercial marine exhibition and forum.

Ocean Business
Ocean technology exhibition and training forum.

BPA – British Ports Association
Hydrosphere is a member of the Britihs Ports Association, which represents the interests of the ports industry and all organisations and individuals who influence the sector.