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About Siewert Design

Siewert Design is an award-winning yacht styling and interior design consultancy, providing concepts through to detailed drawings for custom and refit superyachts, and production boats. The studio’s goal is in developing elegant and creative design solutions, always striving for harmony between beauty, comfort, and value.

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Greg Siewert originally formed the yacht design firm in 1994, prior to being Lead Designer at the prominent superyacht builder Delta Marine.
Siewert is an established professional with broad experience in the marine industry, having also worked with several major production boat builders.
Having worked directly within a shipyard or builder brings an expertise of the construction process and what is required to bring a design to a successful launch.
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Foremost, we’re Boaters and Yachties. We pride ourselves in designing yachts to complement the environment they operate within.
• Durable Design
• Efficient
• Rewarding
• Safe
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Siewert is an Industrial Design graduate from the University of Wisconsin and has a strong background in fine arts, and design engineering, which is reflected in the high quality and expressive visual presentations.
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Siewert has lead or contributed to the interior and exterior design of many successful projects, including the 2015 World Superyacht Award winning ONIKA, Superyacht Refit of the Year CHARISMA, IMTEC Boat of the Year, and is the holder of several marine-related patents.
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Using our industry experience we represent the customer at every stage of a project helping to protect the interests of the owner.
Siewert Design provides exhaustive design support and building supervision, checking that the integrity of the design is maintained.
Greg is a real talent in the marine design field. His work shows respect for history as well as an eye to the future
Andrew Bartlett New Product Development Manager at Tiara Yachts