WorkVenture gives you an inside look at what it's like to work at G4S SECURITY SERVICES (THAILAND) Co., Ltd., office & team photos, reviews and more. This is the G4S SECURITY SERVICES (THAILAND) Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at G4S SECURITY SERVICES (THAILAND) Co., Ltd..Apply to ThaioilApply to Por D PanichApply to AlphaApply to Rodenstock