Meet the Gama Aviation Asia management team.

Whether you are considering buying a Gulfstream G550 or a Bombardier Global or simply wonder how much it is to charter an aircraft, we’d love to hear from you.


Our Asia management team.

Sergio Oliveira e Silva, Managing Director
Sergio Oliveira e Silva is the Managing Director of Gama Aviation Asia. Prior to joining Gama, Sergio was instrumental in the growth of Netjets Europe, responsible for the maintenance operations of a fleet of more than 50 aircraft. Over a 20-year career, starting at Macau International Airport, Sergio has gained expertise across all areas of private and business aviation. Sergio is now responsible for the growth of Gama Aviation Asia, with a focus on Aircraft Management, as well as developing the partnership with China Aircraft Services Limited, offering a new maintenance products for the Asia business aviation market.

Denis Portier,Manager Flight Operations
Denis is our Flight Operations Manager and oversees all flight operations matters relating to the Hong Kong operation. With over 28 years of Professional aviation and 12,000+ flight hours, within all segments of the industry, Denis brings a wealth of experience to the team.

Licenced to fly in the US, Europe, the UAE and Hong Kong, Denis also brings a strong training background having held numerous positions as Lead Instructor (Simulator, aircraft and Enrichment courses), Check Airman and Examiner (FAA TCE, EASA TRE, HK-CAD AEX), as well as in Leadership roles, as Manager Flight Training and Chief Training Captain.


David Wearmouth, Commercial Manager,
David is our Commercial Manager and oversees all commercial touch points for our Air and Ground operations. David has more than 10 years’ experience in aviation, and has joined us from Metrojet, where he spent the previous seven years working in commercial, financial, and corporate development roles.

He has proven expertise in commercial areas of MRO and aircraft management, and holds a Masters degree in Finance, highlighting his financial awareness of business aviation organisations


Alex Law, Ground Operations Manager
Alex joined us in June 2015 as Aircraft Guardian & assumed the position of Ground Operations Manager in early 2018. Prior to joining Gama, Alex has 12 years’ flight operations experience in Hong Kong & obtained his FAA Aircraft Dispatcher Certificate (ADX) abroad. With rich international experience & sound regional knowledge, Alex will focus to build a robust operational infrastructure to support our clients & ensure operational excellence among the Asian business aviation fleet. Alex is also a passionate aviator with 170 hours of flying experience in Socata TB10, Diamond 40 & Cessna 172.