Our Approach

FHG Marine Engineering Inc. specializes in diesel engine in-frame overhauls, generator overhauls, and general preventative maintenance. Our marine engineers each have 10 years of experience and offer service and support on hydraulics, HVAC-R, and electrical systems with complete mobile service to the South Florida area.

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.

Meet the Team

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 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 MV 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) Delegation to the United Nations. 

Rob Fletcher

Co-Founder & Chief Engineering Officer

Rob Fletcher began his career with a job at a boatyard as a teenager. His passion for marine service led him to pursue a degree in Marine Engineering at the United States Merchant Marine Academy. Upon graduation he sailed on Navy Supply Ships as an Engineering Officer and upgraded his USCG License to First Assistant Engineer Unlimited Horsepower.

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