World's finest Explorer Yachts
Sustainably built for
every ocean, every climate
Visit us at HISWA 2025
KM Yachtbuilders returns to the HISWA in-water Boat Show, northern Europe’s premier in-water yachting event.
3–7 September 2025 | Batavia Haven, Lelystad | Berth D.02.
On Display: Bestevaer 53 ‘Tethys’ from Tom Waes
Meet Tom Waes in person at our berth!
Wed. 3 | Thu. 4 | Fri. 5 | Sun. 7 September
Step aboard
Tom Waes’ Bestevaer 53 ‘Tethys’
Meet the experts behind our explorer yachts
Explore our custom Refit Services
Discover the next trend in Bestevaer design
We look forward to welcoming you on the docks!
We are KM Yachtbuilders
Since 1998, KM Yachtbuilders has pioneered the construction of innovative aluminum explorer yachts, always guided by the principles of safety, adventure, and sustainability.
Over the years, we have grown into a team of 80 dedicated professionals and have built more than 100 yachts. Today, decades later, our vessels continue to explore the world’s oceans, from pole to pole, carrying forward our legacy of craftsmanship, reliability, and a spirit of adventure.
Bestevaer yachts
Designed by one of the world’s most legendary sailor as his private yacht. Brought to you by KM Yachtbuilders.
– Testimonial –
“What sets KM Yachtbuilders apart isn’t just their world-class craftsmanship, but their ability to listen, translate ideas into reality, and build with soul.“
– Tom Waes, owner of the Bestevaer 53 ‘Tethys’ –
Go-anywhere
Our aluminium explorer yachts are built for those who venture beyond the ordinary. Strong, reliable, and safe, they handle the world’s most challenging waters — from long ocean crossings and tropical seas to polar ice.
Every yacht reflects our commitment to sustainable yachtbuilding, expert craftsmanship, and timeless durability, ready for every ocean, every climate, and every unknown.
– Refit Testimonial –
“Ready for the world’s oceans,
thanks to KM Yachtbuilders”
– Sofie & Martin, Owners of the Perry 60 ‘Marlin’ –
KM Custom Refit Service
Whether it’s a new build or a refit, every yacht receives the same care, craftsmanship, and attention to detail.
With over 25 years of experience in custom yachtbuilding, we offer world-class refit services, all under one roof. From aluminium hull work to fine carpentry, engineering, painting, and rigging, every discipline is in-house, ensuring the highest quality and a seamless result.
– Introducing –
Stadtship 56 ‘FLOW’
One of our latest deliveries: a robust all‑aluminium Stadtship 56 built for serious bluewater sailing— from pole to pole and everywhere in between.
KM Custom Yachts
A custom built yacht is a journey in itself. Every customer comes with their own set of demands that depend on the purpose of the boat. Decades of experience, teamwork and a profound love of our craft help us to always come up with solutions for the most challenging demands.
Fleet highlights
Bestevaer 53 ‘Tethys’ 2024
- Designer Dykstra Naval Architects
- Length Range 50-59 feet m
OCD 60 2023
- Designer Owen Clarke Design
- Length Range 60-79 feet m
Pelagic 77 ‘Amundsen’ 2024
- Designer Tony Castro Design
- Length Range 60-79 feet m
Bestewind 50 Umiak 2014
- Designer Dykstra Naval Architects
- Length Range 50-59 feet m
Tulip 2012
- Designer German Frers
- Length Range 80-100 feet m
Bestevaer 55 Pilgrim 2011
- Designer Dykstra Naval Architects
- Length Range 50-59 feet m
Stadtship 56 Oester 2005
- Designer Van de Stadt
- Length Range 50-59 feet m
Altena 53 Happy Hours 2007
- Designer Brinksma Marine
- Length Range 50-59 feet m
Bestevaer 53 Xaos 2022
- Designer Dykstra Naval Architects
- Length Range 50-59 feet m