About Us

Yacht Sales International

Fort Lauderdale  ·  Palm Beach  ·  Cape Coral  ·  Annapolis  ·  Chicago

Est. 2014 Fort Lauderdale, FL
5 Office Locations
3,957+ Vessels Available
20 Expert Brokers
19,600+ YouTube Subscribers
Our Story

A Different Kind of Yacht Brokerage

Yacht Sales International was founded on a simple premise: buying or selling a yacht should be a clear, informed, and rewarding experience — not an opaque one. We built our business around transparency, deep product knowledge, and a genuine passion for the water.

Today, YSI operates five offices across the eastern United States — representing brokerage listings, exclusive inventory, and new yachts as an authorized Greenline dealer. We are one of the few brokerages with a genuine, technical focus on hybrid and electric propulsion. That expertise isn't a marketing position — it's built from years of working with these systems in real conditions, on real boats, with real owners.

Whether you're acquiring your first yacht or your fifth, selling a vessel you've loved, or exploring the latest in hybrid ownership — our team brings the same commitment: expert guidance, honest counsel, and real time on the water.

What Sets Us Apart
  • Independent brokerage — no corporate mandates
  • Authorized Greenline dealer — hybrid & electric specialists
  • Principals involved in every listing
  • Full transparency on pricing and process
  • Sea trial-driven approach to every purchase
  • In-house video & digital marketing on every listing
  • 19,600+ YouTube subscribers — buyers come to us
  • Five markets across the eastern US
Leadership

Meet the Founders

Udo Willersinn
Udo Willersinn
Co-Founder / Broker
Udo Willersinn grew up in the boat business. His parents founded Nautic Willersinn, a full-service dealership in Altrip, Germany — he sold his first boat at 14. At 20, he left for the United States to work on the Four Winns factory floor in Texas and Michigan, learning the manufacturing process from fiberglass up. He returned to Germany at 21…
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Wendy Meade Willersinn
Wendy Meade Willersinn
Co-Founder / Broker
Wendy Meade Willersinn co-founded YachtSalesInternational.com with Udo in 2014, bringing a background that is unusual in yacht brokerage: she is a trained Computer Engineer who spent the earlier part of her career as a programmer, consultant, and Director of IT for a global pharmaceutical research company.That background shapes everything about how YSI operates. Wendy built the company's technology infrastructure —…
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Authorized Dealer

Greenline Yachts

Greenline pioneered the parallel hybrid drive system that has become the benchmark in efficient motor yacht design. As an authorized U.S. dealer, YSI offers the full Greenline lineup — from the 39 to the 58 Fly — with dedicated sea trial programs, expert technical guidance, and after-sales support from Fort Lauderdale.

At least six Greenlines have completed the Great Loop. Owners consistently cite the quiet anchoring, solar energy system, and owner-friendly layouts as the reasons they wouldn't go back to a conventional yacht.

Explore Greenline Models Hybrid & Electric Guide
6+ Great Loop completions on Greenline
9 Models from 39 to 58 Fly
1st All-electric Greenline 40 in North America delivered by YSI

Ready to find your next yacht? Browse our full inventory or speak with a broker today.

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