Created to give you the freedom, space and peace of mind to experience the sea on your own terms.
S-Line, Q-Line and Full Custom — each sharing the same hand, the same philosophy, the same Advanced Hybrid heart. The Yacht Support vessels extend any of them, further.
Where the S-Line draws a line through the water, the Q-Line draws a curve — sculptural, innovative, alive. A floating villa, scaled to your horizon.
The architectural foundation of the house. Decisive lines, uncompromising volume, masculine in posture — built around what the sea respects.
For owners whose vision sits outside every line. We start from a blank page, with the same Philosophy, the same engineers, the same uncompromised aluminium craft.
Built by specialists with real superyacht and seafaring experience.
The Q-Class defines our next generation of aluminium superyacht catamarans. Each model represents a distinct size and lifestyle category, developed around four founding principles.
Volumes and proportions that redefine life on the water.
Tri-Hybrid propulsion engineered for stillness at sea.
Commercial-grade aluminium construction, built to trust.
Layouts and interiors fully shaped around her owner.
The entry point to the Q-Class — and already a complete expression of its philosophy. A floating house offering usable guest interior space on the level of a much larger monohull superyacht, with up to 70% lower propulsion-energy demand at comparable usable volume thanks to her efficient hulls. Layout and interior design are fully custom, tailored to her owner. A private owner’s deck behind the bridge, with full privacy, is available.
Sculptural, innovative, alive on the water — the floating Villa. The Q140 delivers usable guest interior space comparable to monohull superyachts considerably longer than herself, with up to 70% lower propulsion-energy demand at comparable usable volume thanks to her efficient hulls. Layout and interior design are fully custom, tailored to her owner. A private owner’s deck behind the bridge, with full privacy, is available.
More volume. More silence. The same architectural soul — the floating Palace. The Q170 delivers usable guest interior space on the level of a far larger monohull superyacht, with up to 70% lower propulsion-energy demand at comparable usable volume thanks to her efficient hulls. Layout and interior design are fully custom — every space, finish and detail tailored to taste. A private owner’s deck behind the bridge is available.
The fullest expression of the Q-Line philosophy — a floating island, scaled to the broadest horizon. The Q200 offers usable guest interior space matching that of substantially larger monohull superyachts, with up to 70% lower propulsion-energy demand at comparable usable volume thanks to her efficient hulls. Layout and interior design are entirely shaped around her owner. The private owner’s deck behind the bridge is available.
The first of her kind.
Sculptural, innovative, alive on the water — the floating Villa. The Q140 delivers usable guest interior space comparable to monohull superyachts considerably longer than herself, with up to 70% lower propulsion-energy demand at comparable usable volume thanks to her efficient hulls. Layout and interior design are fully custom, tailored to her owner. A private owner’s deck behind the bridge, with full privacy, is available.
The Spaceline portfolio currently includes the S88, S120 and S150, while the S180 and S210 are presented as concept studies illustrating the future direction of the brand.
Every S-Line is built around her owner — layout and interior design are fully custom, tailored to your taste and wishes.
The smallest of the line — three decks of light and air, up to twelve guests, and the quiet confidence of crossing an ocean whenever the mood takes you.
A master suite that lives like a private apartment, VIPs that each step onto their own balcony, and outside spaces that simply do not end — yet she moves like a catamaran, calm and sure.
An owner’s deck with the sea on both sides, a sky lounge that opens to the wind, a spa for quiet mornings and a helipad for the days you change your mind at noon.
Your own private world, afloat.
The smallest of the line, and still nothing else feels like her afloat. Up to twelve guests across up to six cabins, three decks of light and air, and the quiet confidence of crossing an ocean whenever the mood takes you. A private owner’s deck behind the bridge — fully shielded — is available.
Interior images shown are design and layout ideas only.
Four decks. One long horizon.
A master suite that lives like a private apartment, VIPs that each step onto their own balcony, and outside spaces that simply do not end. Usable guest interior space on the scale of a much larger monohull — and yet she moves like a catamaran, calm and sure across any sea. A private owner’s deck behind the bridge, with full privacy, is available.
Interior images shown are design and layout ideas only.
The flagship. As far as you want to go.
An owner’s apartment with the sea on both sides, a sky lounge that opens to the wind, a spa for quiet mornings and a helipad for the days you change your mind at noon. Generous usable guest interior space, shaped around the life you actually want to live at sea. A private owner’s deck behind the bridge, with full privacy, is available.
Interior images shown are design and layout ideas only.
All colours: high-gloss yacht paint. C04 gold is metallic high gloss.
Superstructure: standard white. Custom superstructure paint available on request.
Indicative on-screen colours — actual paint matched to RAL or AkzoNobel reference.
Every Ultimate Catamaran is painted to order. Preview six hull paints — high gloss, with a metallic finish for gold.
There are no predefined option lists, standard layouts or fixed owner configurations. Every Ultimate Catamaran is individually developed around the owner’s vision, operational requirements and lifestyle.
A single client, a single yacht, a single conversation.
Developed from the first line around your vision, your use and your way of living at sea.
Reserved capacity — one full custom build at a time.
YS150 — a true Yacht Support Vessel. Similar options to a 65-metre Yacht Support monohull, and in many respects better: more usable volume, more deck, more freedom of movement.
Wherever the yacht goes, she goes further.
The helicopter that lands on a whim, the tenders that disappear over the reef, the dive team, the toys, the spares no one should ever have to think about — she carries them all, quietly, so the voyage above her remains pure. Up to 12 guests on board.
A YS180 is also available — full custom, or as an Explorer version — for owners who want to go further still.
Silent strength, intelligent efficiency.
Every Ultimate Catamaran combines an efficient aluminium catamaran hull form with Advanced Hybrid Propulsion as standard — with TRI-HYBRID™ available as an option.
Compared with monohull yachts of similar usable space, the propulsion-energy demand can be reduced by up to 70%. The result is a quieter, smoother and more refined yacht, with lower vibration, reduced emissions, improved redundancy and a more peaceful experience on board.
For owners and guests, the difference is not only measured in efficiency. It is felt in silence, comfort and confidence at sea.
For owners seeking the next level of silence, independence and future-ready operation, TRI-HYBRID Propulsion is available as an advanced option.
It combines all advantages of Advanced Hybrid Propulsion with fuel cell technology as a third energy source. This enables selected operating phases in fully electric zero-emission mode, with near-zero noise and vibration and an exceptionally calm atmosphere on board.
The result is a superyacht experience closer to sailing: quiet movement, reduced environmental impact and a deeper connection with the sea, without compromising range, comfort or confidence.
The only honest material for a superyacht of this calibre.
Behind every line is the same hull philosophy. Aluminium is safe, lightweight and allows full customisation.
Half the industry standard. A rigid, impact-resistant hull, free from flex and vibration — and free for unlimited customisation.
No toxic fumes, no delamination, no osmosis. A material the sea, and the insurer, both respect.
From the S88 onward, a complete sprinkler system covers the interior — virtually unseen in this size class.
Passive anodes and an active impressed-current system together protect the hull for decades.
A catamaran of similar interior volume burns up to seventy percent less than a comparable monohull.
Built at ISKRA Yard in Šibenik — one of the EU's leading shipyards in aluminium shipbuilding, with nearly all departments in-house.
Ultimate Catamarans was founded by people who have lived the world of superyachts from the inside. Our team brings together seafaring experience, naval architecture, design vision and new-build expertise to create catamarans with more space, more confidence and a deeper sense of freedom at sea.
Ralph Wuttke is the founder and visionary behind Ultimate Catamarans. A serial entrepreneur with international businesses across multiple markets and industries, he brings commercial strength, strategic thinking and a global network to the company. Driven by a lifelong passion for the sea, Ralph saw the opportunity to rethink the superyacht catamaran from the owner's perspective: more space, more comfort, more safety and a greater sense of freedom at sea.
A Master Mariner, former captain, surveyor and superyacht project manager with experience on yachts up to 162 metres. As the central link between owner vision, yacht development and commercial strategy, Olaf guides each project from the first idea through design development, client dialogue and sale.
Former Head of Design and Proposal at Damen / AMELS Yachts, with more than fifty deliveries behind him. Founder of KYC. Leads platform design and layout for the S-Line, and shapes the exterior in collaboration with Luxury Projects.
Founder of Luxury Projects, multiple-award-winning architecture and yacht design firm. Signs the S-Line interiors and co-authors the exterior with KYC, translating an owner's vision into a living space at sea.
Antonio Luxardo brings the Q-Line its distinctive architectural language and interior vision. With experience in full-custom superyacht projects from 40 metres and above, his work gives the Q-Line its balance of proportion, spatial elegance and contemporary luxury.
One of Europe's leading aluminium shipbuilding specialists, operating from two locations in Croatia and known for its expertise in complex catamaran construction. For Ultimate Catamarans, ISKRA provides the production depth, quality control and craftsmanship required to turn ambitious superyacht design into reality.
The catamaran gives you twice the deck, twice the light, and the rare gift of standing perfectly still on a moving sea.
We design for the long silences. For the soft sway that becomes home. For the freedom to drop anchor anywhere a horizon appears — and the peace of mind to fall asleep there.
Every Ultimate Catamaran — across the Q-Line, S-Line, Yacht Support and Full Custom lines — is created with commercial yacht readiness as standard. For owners who wish to charter, this provides a clear path from delivery while supporting the yacht's long-term value and resale appeal.
From the first idea to the final detail, every Ultimate Catamaran is created around its owner.