Paul Ridout worked as a marine chemist at the Institute of Oceanographic Sciences, UK before launching his company, Ocean Scientific International Ltd (OSIL) in 1989 where he is now a Consultant. OSIL provides marine instruments and systems for environmental measurement and monitoring particularly relating to marine, coastal, dredge and meteorological applications. He is currently a Vice President of the UK Parliamentary and Scientific Committee and Council Member for AMSI. He is a Fellow of the Institute of Marine Engineering, Science and Technology (FIMarEST) and a Fellow of the Society of Biology (FSB).

The Parliamentary and Scientific Committee, founded in 1939, is a major focus for scientific and technological issues providing a liaison between Parliamentarians and scientific bodies, science-based industry and the academic world.

The IAPSO Standard Seawater Service provides the internationally approved calibration standards for the measurement of Practical Salinity in natural seawater.

Established a new fishmongers in Haslemere, Surrey supplying high quality fresh fish and shellfish.

Company involved in the research and development of seawater spray products for the consumer market.

Private limited by guarantee without share.

Private company developing and manufacturing optical instrumentation for environmental measurement.

Research chemist studying trace metals and pigments in deep ocean sediments and organisms. Manager of the IAPSO Standard Seawater Service.