Work with FHG Marine Engineers

We are dedicated to supporting your vessel with marine diesel engine services. 

FHG Marine Engineering Inc. specializes in marine diesel engine service, offering engine in-frame overhauls, generator overhauls, and general preventative maintenance for yachts, cruise and commercial vessels. Our marine engineers each have 10 years of experience in all aspects of engine overhaul, service and repair. We also offer service and support on auxiliary systems such as sewage and water treatment, fluid management, oil filtration, separation, hydraulics, and electrical systems with complete mobile service to the South Florida area.

We are the HAMANN AG Authorized Service Center for the USA, providing spare parts, service and new system design and installation for all HAMANN systems. FHG Marine Engineering serves yachts, cruise vessels and commerical vessels with high quality services for HAMANN marine sewage and water treatment systems.

Our engineers are graduates of the United States Merchant Marine Academy, a world class institution that trains future mariners for life at sea. They each have years of experience sailing on commercial, military, and cruise ships, in addition to a vast knowledge of luxury yachting vessels.

With FHG Marine Engineering, every technician that works on your vessel understands what it means to have a machinery malfunction at sea. We strive to ensure this never happens to you.

FHG Marine Engineering Leadership

Richard Grennen

Co-Founder & CEO

Richard graduated from the United States Merchant Marine Academy  with a degree in Marine Engineering. He gained experience on cargo ships, cable laying vessels, cruise ships, and US Navy vessels while upgrading his USCG License to First Assistant Engineer Unlimited Horsepower. He also has years of experience working on luxury and superyachts and is a member of the Society of Naval Architects and Marine Engineers (SNAME).

Katie Hagan

Co-Founder & Chief Operating Officer

Katie graduated summa cum laude and Phi Beta Kappa from the University of San Diego with a degree in International Relations. While at USD, she sailed around the world with Semester at Sea on the M/V Explorer. As an Asian Studies minor, she later lived and worked abroad in Chongqing, China. Before FHG, she was a humanitarian with the International Committee of the Red Cross (ICRC) at the Delegation to the United Nations and ICRC Delegation in Washington.  

Meet the Team

Proud members of the following organizations