Military-Grade Vessels and Custom Commercial Yachts
Swiftships Yachts for Sale
Innovative Naval Architecture, Built in the USA
Swiftships is a U.S.-based shipbuilder known for designing and constructing high-performance military and commercial vessels. With a history dating back to 1940, Swiftships specializes in aluminum and steel hulls, offering advanced technologies for defense fleets, patrol boats, and custom expedition yachts. The yard combines engineering innovation with global delivery capabilities and U.S. Navy compliance.
Current Swiftships Yacht Listings
Swiftships Yachts
About Swiftships Yachts
Generations of Gulf‑Coast Craftsmanship
Swiftships traces its roots to 1942, when Fred Sewart founded Sewart Machine Works in Berwick, Louisiana, pioneering lightweight aluminum boats for U.S. military use. Rebranded as Swiftships in the late 1960s, the yard has since delivered more than 1,000 vessels from its Morgan City facilities, earning a reputation for robust engineering and on‑time delivery.
Client‑Driven Custom Design
While celebrated for defense contracts, Swiftships also undertakes bespoke yacht and expedition projects, offering steel or aluminum hulls, flexible interior plans, and long‑range systems tailored to each owner’s brief. Early design reviews with in‑house naval architects ensure that performance targets, draft limits, and space requirements are met before construction begins.
Standout Builds and Conversions
Notable leisure projects include the 118‑foot tri‑deck UH OH, the 65 m explorer concept co‑designed with Evan Marshall, and the 91 m conversion yacht Voyager, transformed from an offshore supply vessel into an ice‑class world cruiser. These milestones highlight Swiftships’ versatility and its ability to blend commercial‑grade strength with super‑yacht comfort.
Innovation and Future‑Ready Technology
Swiftships invests heavily in R&D, advancing autonomous vessel platforms, composite armor integration, and hybrid‑ready propulsion for reduced emissions. Continuous improvement in aluminum welding and weight management keeps the yard at the forefront of efficient, high‑speed hull construction.
Swiftships at a Glance
country
Based in Morgan City, Louisiana (USA), Swiftships has a proud American legacy in aluminum and steel vessel construction since 1942, with operations extending globally.
Specialities
Swiftships specializes in military patrol craft, commercial workboats, and custom expedition yachts, with significant expertise in autonomous and co-produced maritime platforms.
Size Range
Their portfolio spans small unmanned vessels to large patrol and supply ships, typically from 12 m to over 75 m, including fast patrol boats, landing craft, and support vessels.
Hull Configurations
Swiftships offers planing aluminum monohulls and semi-displacement steel vessels, engineered for speed, durability, and offshore capability under diverse conditions.
Hull Materials
Constructed using marine-grade structural steel and aluminum, the company also integrates advanced welding, composite armor, and naval-grade fittings.
Services
Swiftships provides full lifecycle support, including design & engineering, end-to-end shipbuilding, system integration, maintenance, repairs, unmanned systems, platform conversions, and global logistics support.
Swiftships Projects
New Yacht Construction Expertise with Swiftships
Worth Avenue Yachts has guided owners through multiple Swiftships programs, from bespoke 50‑metre expedition yachts to fast 35‑metre adventure craft. Our brokers and naval‑architecture advisors know the yard’s Gulf‑Coast workflow, aluminium precision welding, and commercial‑grade systems integration, allowing us to shape hull form, range, and interior plan before contracts are signed. Each step appears in our secure build‑tracking portal, giving you clear milestones, cost visibility, and direct access to the project team.
Swiftships is a smart choice when you need military‑level engineering fused with super‑yacht comfort. Semi‑custom platforms accept hybrid propulsion, ice‑class reinforcement, and autonomous support craft, while our proprietary list of “started builds” lets clients secure partially completed hulls for faster delivery without losing design freedom. With insider yard access, independent technical reviews, and global flag‑state ties, Worth Avenue Yachts delivers seamless support from specification to sea trial, ensuring your new Swiftships vessel is launched on schedule, on budget, and ready for blue‑water exploration.
Build Without Compromise.
At Worth Avenue Yachts, we turn visionary ideas into world-class yachts—crafted with precision, passion, and a commitment to your unique journey.
Contact Us
Get in Touch
Ready to bring your dream yacht to life? Get in touch with our new build specialists today and start your custom journey.
Crafted to the highest standards, chosen for their legacy.
Explore Other Exceptional Yacht Builders
-
Abeking & RasmussenAbeking & Rasmussen yacht builders, a renowned German shipyard established in 1907, specializes in crafting custom luxury yachts over 98 feet, blending traditional craftsmanship with innovative design
-
AmelsAmels, a prestigious Dutch shipyard established in 1918 and now part of the Damen Group, is renowned for its custom and Limited Editions superyachts that blend timeless design, advanced technology, and eco-conscious innovation.
-
BagliettoBaglietto, a historic Italian shipyard founded in 1854, is renowned for its custom-built aluminum and steel yachts ranging from 38 to 65 meters, blending traditional craftsmanship with cutting-edge innovation and sustainable design.
-
BenettiBenetti, a historic Italian shipyard founded in 1873 and now part of the Azimut-Benetti Group, is renowned for its custom and semi-custom steel-and-aluminum yachts ranging from 93 to over 213 feet, blending timeless elegance with innovative design and eco-conscious technology.
-
BurgerBurger Boat Company, established in 1863 in Manitowoc, Wisconsin, is one of America's oldest and most esteemed custom yacht builders, renowned for crafting bespoke aluminum and steel yachts up to 200 feet that seamlessly blend traditional craftsmanship with modern innovation.
-
FeadshipFeadship, a prestigious Dutch shipbuilding consortium established in 1949, is renowned for crafting fully custom superyachts that epitomize innovation, craftsmanship, and timeless design.
-
Fincantieri YachtsFincantieri Yachts, established in 2005 as a division of Italy's renowned shipbuilding group Fincantieri, specializes in crafting fully custom mega yachts over 70 meters, blending advanced naval engineering with Italian design excellence.
-
Royal HakvoortRoyal Hakvoort Shipyard, a family-owned Dutch builder since 1919, specializes in crafting bespoke steel and aluminum superyachts up to 65 meters, blending traditional craftsmanship with modern innovation.
-
HessenHeesen Yachts, founded in 1978, is a Dutch shipyard acclaimed for building high-performance custom superyachts in aluminum and steel up to 80 meters.
-
LurssenLürssen, a German shipyard founded in 1875, is renowned for building some of the world's largest and most luxurious custom superyachts, including the 180.65-meter Azzam and the 156-meter Dilbar, blending advanced naval engineering with bespoke design.
-
MulderMulder Shipyard, a Dutch family-owned builder established in 1938, specializes in crafting semi-custom aluminum motor yachts up to 50 meters, blending traditional craftsmanship with modern innovation.
-
NobiskrugNobiskrug, a German shipyard founded in 1905, is renowned for crafting iconic custom superyachts like Sailing Yacht A and Artefact, blending advanced engineering with innovative design.
-
NordhavnNordhavn Yachts, established by Pacific Asian Enterprises in 1978, is renowned for building robust, long-range trawler-style motor yachts ranging from 40 to 120 feet, designed for global circumnavigation and ocean-crossing adventures.
-
Ocean AlexanderOcean Alexander, founded in 1977 in Taiwan, is a premier yacht builder known for its semi-custom luxury yachts ranging from 45 to 155 feet, blending advanced engineering with elegant design and craftsmanship.
-
RossinaviRossinavi, an Italian shipyard founded in 1980 in Viareggio, specializes in fully custom steel and aluminum superyachts ranging from 30 to 70 meters, blending Italian craftsmanship with cutting-edge design and eco-conscious innovation.
-
SanlorenzoSanlorenzo, founded in 1958 in Italy, is a premier yacht builder renowned for its bespoke luxury yachts and superyachts ranging from 24 to 70 meters, blending Italian craftsmanship with innovative design and advanced technology.
-
WestportWestport Yachts, established in 1964 in Washington State, is a leading American shipyard renowned for its high-quality composite motor yachts ranging from 34 to 52 meters, blending advanced engineering with timeless design.
LET US TAKE YOU THERE...
