-  Thai Oleo Chemicals Co., Ltd. (PTT Group) - Rayong. (WWTP Training)
-  True Properties Co., Ltd., Bangkok. (Tentative Earthquake Engineering Course)
-  The Crown Property Bureau, Bangkok (Building Structural Inspection)
-  The Mall groups Co., Ltd. - Bangkae and Ta-Phra branch (WWTP Training)
-  Siam Gulf Petrochemical Co., Ltd. - Petchburi (WWTP Training)
-  Interthai Pharmaceutical Ltd. (WWTP Training)