DEFINING

THE FUTURE OF CUSTOM YACHT DESIGN AND MANUFACTURING

Minimal Weight.

Maxium Strength.

Peak Performance.

THE HISTORY BEHIND THE BUILD.

Mark Willis: PASSION and PRECISION with a commitment to EXCELLENCE.

At Willis Custom Yachts, our story is deeply rooted in a passion for the water and the art of boatbuilding. Co-founder Mark Willis grew up in Narragansett Bay, Rhode Island, where his love for the water grew alongside a familial passion for craftsmanship. Inspired by his grandfather, who built skiffs in a at-home workshop, Mark’s journey into the world of wooden boatbuilding began early on.

In 1982, Mark embarked on his first new build: a 30-foot inboard, single-screw boat named “Outlaw.” A self-taught tradesmen, he immersed himself in literature, publications, and hands-on experiences aboard boats, honing his skills in design and construction. This dedication laid the groundwork for what would become a revolutionary  era in the custom sportfish industry.

Over the years, Mark has transformed the landscape of custom sportfish yacht building with a combination of innovative technology and meticulous craftsmanship. While remaining committed to the timelessness of cold-molded wood epoxy hulls, he has embraced modern advancements by utilizing composite carbon epoxy infusion for the superstructure and CAD renderings to create a complete 3D model of the vessel and its individual CNC-cut components.. 

Today, Willis Custom Yachts stands as a testament to Mark’s vision and expertise, setting the standard for high-performing luxury sportfish yachts. Our commitment to quality, innovation, and tradition continues to drive us as we build vessels that embody the spirit of the sportfish yacht and the legacy of craftsmanship. 


Hull 15: Uno Mas 70′

From the Octoplex controlled fuel transfer system, to the Optimus steering,  custom tackle storage, and LED-backlit billfish VIP mirror, Uno Mas 70′ represents the pinnacle of cutting-edge technology, expert craftsmanship, and customization.

Uno Mas Specifications

LOA: 70’

Beam: 20’

Draft: 6’

Displacement: 99,000 lb

Fuel Capacity: 2,500 Gallons (6 fuel tanks)

Water Capacity: 250 Gallons

Main Engines: MTU 16V2000 M96 rated at 2600hp

Generators: Onan 29kW (x2)

V-Drive Shafts 

6 Transom Tuna Tubes

3 Electrosea Units 

35 Knot Cruise Speed

Max 50.4 Knots 

IN PRODUCTION

Hull 16- 70′ Goose


Hull 17-70′ War Party


Hull 18- 70′ Cha Cha

Looking Ahead to the Future…

A 90,000-square-foot facility is in the early stages of development, which will serve as a new manufacturing space capable of accommodating up to five new builds simultaneously. This expansion will allow Willis Custom Yachts to reduce the production time for new builds to just two years, a remarkable achievement in the custom sportfish yacht industry.

ON THE WATER

UNO MAS 70’