Koshi Marine
BORN TO
REDEFINE
THE SEA
Founded with a single purpose — to set a benchmark in the marine industry with every project. Not ordinary boats. Reference points in yachting.
About Us
A DIFFERENT
KIND OF
BOAT COMPANY
Koshi Marine was founded with a clear purpose: to set a benchmark in the marine industry with every single project. We do not build ordinary boats — every Koshi is designed to become a reference point in yachting.
With over 20 years of experience producing high-end carbon fiber components for the world's most prestigious supercars, Koshi Group created Koshi Marine — bringing the same industrial know-how to the sea.
Patented Technology
From our automotive heritage, we developed a patented technology that combines carbon fiber and epoxy resins — delivering yachts that are lighter, stronger, and faster, without compromise on comfort or safety.
True Exclusivity
Koshi Marine means true exclusivity. We do not pursue mass production or shortcuts. Every yacht is built as a unique masterpiece, shaped around its owner — without compromise, without imitation.
For Those Who Value Time
We do not build boats for everyone — we build for those who consider time the most precious asset. For those who know that every second not fully lived is a second forever lost.
Koshi Marine does not follow. It does not imitate. It does not chase. Koshi Marine redefines.Koshi Marine Philosophy
Our Heritage
20 YEARS OF
CARBON &
ENGINEERING
The Koshi 51 embodies everything we stand for. Entirely crafted in carbon fiber with cutting-edge technology, it is not just a boat — it is an engineering masterpiece designed to transform speed into freedom.
Every line, every detail is shaped to reflect a personal and unrepeatable vision. We do not mass-produce. We create unique experiences, tailored for those who recognise the true value of exclusivity.
Luxury is not only about comfort or design. True luxury is time itself. The Koshi 51 was built to ensure none of it is wasted — arrive earlier, live more, never wait.
20+
Years in carbon fiber
100%
Carbon construction
1
World's only boatbuilder using Koshi patented construction
0
Shortcuts taken
From producing carbon fiber components for the world's most prestigious supercars, to applying that same patented technology to the sea — the Koshi Group's expertise is the foundation every boat is built on.
Get in Touch
TIME WAITS
FOR NO ONE.
Neither do we. If you are ready to own something that has never been built to follow — let's talk.