…full and comprehensive range of services from minor repair and refit requirements to the full design, engineering and construction of complete yacht conversion projects.
About Us

Located in Subic Bay, Philippines, HYS Yachts – globally recognised as the premier full-service shipyard and repair facility throughout Asia – is uniquely qualified to offer the international ship and yachting community a full and comprehensive range of services from minor repair and refit requirements to the full design, engineering and construction of complete yacht conversion projects.

Featured in over a dozen international yachting publications, our Subic Bay facilities offer complete steel and aluminium fabrication services, electrical engineering, hydraulic servicing and installation, and first quality fit out services including hull / superstructure fairing and painting, expert teak decking installations and more.

We also offer our a comprehensive list of mission-critical yacht and commercial vessel agent services including the import, export and purchasing of specialised ship and yachting equipment from anywhere in the world, crew immigration and quarantine procedures, vessel port clearance processing and more.


Each HYS Yachts’ project has one very specialized overall objective: to redesign, refit, and re-purpose aging commercial vessels into unique and luxurious masterworks of ocean-going beauty, comfort, and functionality.

Accomplishing such a task – on time and on budget – requires world-class, multi-disciplinary expertise and an uncompromising passion for perfection: both typical distinctions of any HYS Yachts conversion.

Each member of the HYS Yachts team – acting in partnership with the vessel’s owner as project managers, naval architects, mechanical, electrical, custom-fabrication, and luxury design experts – is personally dedicated to making your dream yacht a stunning and cost-effective reality.

The end result that HYS Yachts can achieve for your project is the final step in a journey of uncommon pleasure and pride.

From tired and ordinary… to sleek and extraordinary!
Our Team


HYS Chief Executive Officer and Project Manager

With a background in mechanical engineering from his years in the British Aviation Industry, HYS CEO Mark Prangnell has earned a reputation within the luxury-refit community for project achievement, uncompromising quality, and a focused and feverish attention to detail.

Previous to forming HYS Yachts along with Naval Architect and partner Simon Jupe, Mark served as chief engineer aboard numerous private and charter yachts cruising the warm, blue depths of the Mediterranean and Caribbean seas.

As the captain and guiding force behind HYS Yachts, Mark has maintained a hands-on role in over twelve major conversions. Unlike most CEO’s, Mark can frequently be found down in the bilges with the rest of the HYS crew.

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Crisostomo Chavez
Electrical Manager
Jesus Valenzuela Jr.
Mechanical Manager
Fernando Seriritan JR.
Yard Manager
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Simon Jupe
Naval Architech
Fernando Oraa
Painting Supervisor
Dickson Guerrero
Fabrication Supervisor


    (047) 250 0290

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