We are a Certifying Authority appointed by the MCA and other Registries.Code My Boat
Our approved measurers will produce a Certificate of Survey for Tonnage and Measurement.Register My Boat
How to become a YDSA-qualified professional.Membership Information
Professional training courses and events.What's On?
The Yacht Designers & Surveyors Association (YDSA) is the UK’s professional association for surveyors and designers and is a world-renowned organisation for marine expertise.
Our Qualified Experienced Professionals have been setting the standards in the designing and surveying of yachts since 1912 and the YDSA’s worldwide network of independent specialists can be relied upon for their technical authority and professional integrity.Find out more