Elysium
Oceanco launches Leviathan — a 111m diesel-electric superyacht built with purpose, crew wellbeing, low-maintenance innovation, and scientific research capability.
The Bold Introduction of Leviathan: A New Era in Yachting
The Oceanco Leviathan is not just another 111-meter superyacht — it’s a vision of what the future of yachting can and should be. Launched in 2025 and formerly known as Project Y722, Leviathan’s identity is built on purpose, collaboration, and human-centric design rather than tradition.
From its diesel-electric propulsion system to its low-maintenance materials and its focus on crew wellbeing, Leviathan is a vessel designed to operate with efficiency, comfort, and versatility, all while delivering an unmatched luxury experience.
From Project Y722 to Leviathan: The Journey
Years in the making, the transformation from Project Y722 to Leviathan was a collaborative effort involving over 2,000 skilled contributors. Every decision — from the materials used to the layout of the crew quarters — was shaped by input from both the owner and the crew themselves.
A Statement of Purpose Over Tradition
Unlike traditional yachts that prioritize aesthetics above all else, Leviathan strikes a perfect synergy between beauty and functionality. Every design choice serves a tangible purpose, whether it’s reducing repetitive maintenance or enabling onboard scientific research.
Diesel-Electric Power: The Future of Clean Luxury
Leviathan’s diesel-electric propulsion system places her at the cutting edge of sustainable maritime technology.
Why Diesel-Electric Technology Matters at Sea
This advanced system allows for quieter operations, lower emissions, and greater fuel efficiency — a critical step toward a more sustainable yachting industry.
Reduced Emissions Without Sacrificing Performance
With 364 feet of luxury and a 17.8-meter beam, Leviathan demonstrates that sustainability and high performance are no longer mutually exclusive in the superyacht world.
Human-Centric Design Philosophy
At the heart of Leviathan’s design lies a simple truth: yachts work best when they work for the people who operate them.
Crew Wellbeing at the Forefront
From private, comfortable crew quarters to spaces that encourage rest, collaboration, and efficiency, Leviathan makes crew comfort a strategic advantage.
Building a Yacht Around People, Not Just Guests
Crew members were involved from day one — not merely as operators, but as design collaborators who ensured the vessel is functional, safe, and efficient.
Material Innovation for Low Maintenance and High Value
Luxury yachts are notorious for their upkeep, but Leviathan’s design team broke from tradition to reduce unnecessary maintenance without sacrificing style. The result? More time for the crew to focus on enhancing guest experiences and supporting special operations.
Honed Stone and Natural Wool Carpets for Comfort and Durability
Instead of fragile or overly delicate finishes, honed stone was selected for its resilience and timeless elegance. Likewise, natural wool carpets provide comfort underfoot while being naturally stain-resistant and easy to maintain.
Composite Capping Rails & Decks: Beauty Without the Burden
Traditional teak decks and polished wooden cappings — beautiful but labor-intensive — have been replaced by composite capping rails and composite decks. These materials are lighter, stronger, and resistant to weathering, extending their lifespan and reducing the need for constant refinishing.
Full-Height Glass Superstructure: Blurring the Line Between Sea and Sky
The yacht’s full-height glass superstructure bulkheads maximize natural light, offer breathtaking panoramic views, and create a seamless connection between interior spaces and the ocean beyond.
Designed for Scientific Research and Exploration
Leviathan is not just a playground for luxury — she’s a working platform for global exploration.
A Floating Laboratory at Sea
Equipped with advanced systems and storage capabilities, Leviathan can support marine research, environmental monitoring, and expeditionary work without compromising her hospitality functions.
Supporting Global Marine Initiatives
Her layout and onboard technology make it possible to host scientists, researchers, and documentary teams, contributing to the preservation and study of our oceans.
Collaboration at the Core of Leviathan’s Build
Leviathan’s construction is as remarkable as her capabilities. The build brought together some of the best minds in naval architecture, engineering, and design.
Contributions from Over 2,000 Experts
From Oceanco’s naval architects to Lateral Naval Architects, Mark Berryman Design, and the owner’s representatives at Y.CO and YTMC, the project was a multi-year effort powered by cooperation.
The Engraved Glass Panel: A Symbol of Unity
Inside Leviathan’s main staircase, a glass panel engraved with the names of every contributor stands as a permanent tribute to the teamwork that made her possible.
Exterior and Interior Design Mastery
The Leviathan is a study in balance — power and elegance, durability and beauty.
Oceanco’s Striking Exterior Vision
Her sharp, dynamic lines give a sense of motion even at rest, while her imposing presence on the water reflects the strength of her engineering.
Mark Berryman’s Functional, Elegant Interiors
Berryman’s interiors are calm, contemporary, and deeply functional, designed for extended time at sea without compromising luxury.
The Owner’s Vision and Philosophy
Behind Leviathan’s success is an owner deeply committed to crew welfare, sustainability, and purpose-driven design.
A Yacht That Works for Crew and Guests Equally
The vessel is as much about operational excellence as it is about guest experience — a rare philosophy in superyacht ownership.
Redefining the Role of a Modern Superyacht Owner
By involving the crew in every decision, the owner has set a new benchmark for inclusive yacht design.
Technical Specifications of Oceanco Leviathan
| Specification | Detail |
| Length | 111m / 364ft |
| Beam | 17.8m / 58ft |
| Propulsion | Diesel-electric |
| Exterior Design | Oceanco |
| Interior Design | Mark Berryman Design |
| Owner’s Representatives | Y.CO & YTMC |
| Naval Architecture | Oceanco & Lateral Naval Architects |
Leviathan’s Place in the Future of Yachting
Leviathan is more than a luxury vessel — she’s a blueprint for the next generation of yachts. By merging sustainability, operational efficiency, and human-centric design, she shows that the future of yachting is about purpose-driven innovation.
FAQs
1. What makes Leviathan unique?
Her combination of diesel-electric propulsion, low-maintenance materials, human-centric design, and scientific research capability sets her apart from traditional yachts.
2. How does Leviathan support crew wellbeing?
She features comfortable living spaces, efficient work areas, and low-maintenance finishes to reduce repetitive tasks.
3. Why choose diesel-electric over traditional propulsion?
Diesel-electric systems reduce emissions, lower noise levels, and improve efficiency without sacrificing performance.
4. Can Leviathan support scientific missions?
Yes — she’s equipped to host researchers, store equipment, and operate as a floating platform for oceanic study.
5. What materials were chosen for low maintenance?
Honed stone, natural wool carpets, composite capping rails, and composite decks ensure durability and beauty without constant upkeep.
6. Who designed Leviathan’s interiors and exteriors?
Her exterior design is courtesy of Oceanco, while her interiors are by Mark Berryman Design, with naval architecture provided by Oceanco and Lateral Naval Architects.
The Legacy Leviathan is Creating
The Oceanco Leviathan is not just a yacht — she’s a statement of intent. She proves that the future of luxury at sea is not about excess for its own sake, but about purpose, people, and planet. With her innovative design, collaborative build process, and commitment to sustainability, Leviathan stands as a symbol of progress in the superyacht world. You can explore more about Oceanco’s visionary projects at www.builtbyoceanco.com
