Leadership Team

Our People

Our executives embrace the enterprising spirit of Colliers International. They are passionate, committed leaders who share a common goal: to accelerate the success of everyone associated with our company, including our clients, sales professionals, support staff, communities and business partners.

Thailand Leadership Team

Sirima Munphet
Chairman of Board

Simon Landy
Co-founder and Advisor 

Ratchaphum Jongpakdee

Ratchaphum Jongpakdee
Deputy Managing Director

Greg White
Director Consultancy Office Services

Panissara Charoensit

Panissara Charoensit
Chief Financial Officer

Barny Swainson
Senior Director, Capital Markets and Investment Services

Chomratkamol Soontorntarawong
Director, Project Sales & Marketing

Worawut Rutwaree
Director, Advisory Services

Natcha Taepongsorat
Associate Director, Advisory Services

Wasan Rattanakijjanukul
Associate Director, 
Capital Markets and Investment Services

Jeremy Osullivan
Senior Manager, Valuation & Advisory Services

Napaswan Chotephard
Senior Manager,
Residential Sales & Leasing

Sorravich Siriwattanapornchai
Industrial Services

Hathairat Yoorod
Senior Manager, 
Office Services