
Koshi Group · Engineering Partnerships
Some ideas are too ambitious for conventional manufacturers. At Koshi Marine, we don't simply build boats — we transform bold ideas into engineering reality.
Build With Us
Whether you are an entrepreneur, a startup, a yacht builder, a naval architect, a government agency or an established brand looking to develop a revolutionary marine product, we provide the technology, expertise and manufacturing capability to bring your vision to life. From concept sketches to fully engineered prototypes and production-ready solutions, our team works alongside you throughout every stage of development.
Our background extends far beyond the marine industry. For more than two decades, Koshi has developed and manufactured advanced composite components for some of the world's most demanding automotive applications, where precision, weight reduction, structural performance and uncompromising quality are essential. Today, that same philosophy drives every marine project we undertake.
If your project demands lighter structures, greater strength, higher efficiency, unique aesthetics, or engineering solutions that don't yet exist, you're exactly where you should be.
Two Decades of Composite Mastery
Over 20 years of advanced composite manufacturing experience, with proven expertise across automotive and marine engineering, built on our own patented composite technologies.
Full-Spectrum Engineering Support
Carbon fiber, fiberglass and hybrid composite manufacturing, with complete engineering and product development support from prototype through serial production.
Vertically Integrated Production
In-house CNC machining, tooling, prepregs and autoclave systems, infusion systems, post-curing ovens, painting and assembly — all under one roof.
Why Build With Koshi?
Whether your goal is the world's fastest tender, an innovative commercial vessel, a next-generation military platform, a high-performance recreational boat, or an entirely new concept — we become part of your engineering team, not just your manufacturer. Your vision deserves more than a supplier. It deserves an engineering partner.