About Us

A legacy of craftsmanship

Gentile & Co. is a full-service landscape architecture, planning, and environmental consulting firm in Jupiter, Florida, chartered in 1988.

Decades of local expertise, a passion for enduring places

For more than three decades, Gentile & Co. has improved the quality of life across South Florida by balancing and enhancing resources for our clients' success while respecting the community, the environment, and our shared future. We work effectively with both the public and private sectors, primarily across South and Central Florida, with projects reaching Georgia, Mississippi, North Carolina, Costa Rica, and the Bahamas and Caribbean.

Our team includes licensed Landscape Architects, an ISA-certified arborist, and professional planners recognized by the American Institute of Certified Planners (AICP), alongside LEED Accredited Professionals and a talented group of graphic designers. With this sustainable design process, we have delivered numerous LEED-certified projects — among them the Max Planck Florida Research Institute, Harbor Branch Research Institute at FAU, the Quantum Foundation Headquarters, Turtle River Montessori School, and the Ballpark of the Palm Beaches. We are also proud to be the planners who secured the first approval of a wind farm in Florida.

Our People

Principals & leadership

George G. Gentile
Founding Principal
PLA, FASLA
A landscape architect and planner in Palm Beach County for over 47 years. Named a Fellow of ASLA in 1996 and Landscape Architect of the Year by Palm Beach County AIA in 2007. He founded the firm in 1988 and serves as Chairman of the Jupiter Inlet District.
Emily M. O'Mahoney
Managing Principal
FASLA, PLA, LEED®AP BD+C
Forty years of experience directing project design and firm direction, representing complex projects before public agencies across the region. Served as President of the American Society of Landscape Architects, championing the profession as a force for climate solutions.
Troy Holloway
Managing Principal
ASLA, PLA, LEED®AP BD+C
A licensed landscape architect and LEED Accredited Professional, Troy is a partner at the firm. He brings deep expertise in landscape architecture and sustainable site design to public and private projects across South Florida.

Let's create something lasting together.

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