WorkVenture gives you an inside look at what it's like to work at Watthana Engineering & Service Co., Ltd., office & team photos, reviews and more. This is the Watthana Engineering & Service Co., Ltd. Company Page. All content is posted anonymously by employees currently or previously working at Watthana Engineering & Service Co., Ltd..Apply to Ktb Computer ServicesApply to VespaApply to OsotspaApply to Phatra Leasing