Ensar Çabuk Takes the Helm of Sirena Yachts USA
Sirena Yachts has announced a change in the leadership of its U.S. operations. After heading Sirena Yachts USA since 2018, Constantinos K. Constantinou is stepping down from his operational responsibilities to assume the role of Senior Advisor, where he will continue to contribute to the shipyard’s strategic and commercial development by drawing on his extensive experience in the North American market.
During his tenure, Constantinou oversaw the brand’s expansion across the United States and North America, helping to grow the dealer network and strengthen relationships with owners and business partners. He also played a key role in promoting the shipyard’s presence in the long-range cruising motoryacht segment.
Succeeding him is Ensar Çabuk, who has been appointed Head of Sirena Yachts USA. A Naval Architect and Marine Engineer with a Master’s degree in Yacht Design, Çabuk joined Sirena Marine in 2011 as a Design Engineer. He later served as Project Manager for the development of the Sirena 58 and Sirena 64 models before moving into commercial roles as Sales Responsible and Manager of Sales, contributing to the expansion of the brand’s international dealer network.

Since 2023, Çabuk has been based in Fort Lauderdale as Country Manager of Sirena Yachts USA, working closely with Constantinos Constantinou, dealers, owners and industry partners throughout the region.
In his new position, Çabuk will focus on strengthening the dealer network, supporting customers and further expanding Sirena Yachts’ presence in the U.S. market, with the objective of consolidating the brand’s growth across the United States and, more broadly, the Americas.
Commenting on the transition, Constantinos K. Constantinou reflected on the company’s growth over the past several years and expressed confidence in his successor’s technical and commercial expertise. Ensar Çabuk stated that he intends to build on the work already accomplished by further strengthening the brand’s market presence, expanding the dealer network and enhancing the ownership experience for Sirena customers.
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