Previous Ownaship managing director Simon Barker and his wife, Donna, now own the Westhaven-based fractional ownership company.
Ownaship, which was founded in 2007 with a single second-hand trailer-boat, now runs an entirely new-boat fleet of nine.
The fleet includes luxury launches, cruising yachts and 6m and 7m powerboats.
The company is enjoying a renewed surge in popularity, Barker says.
"The phone is starting to ring as summer approaches and people realise that they can enjoy all the benefits of boat ownership, with none of the hassles, for a fraction of the price of a new boat."