Consultants of Technology Co., Ltd. (COT) established in early 1983, is a Thai, professional engineering consulting firm serving governmental, private sector, and international organizations/agencies.

COT now employs more than 300 permanent staffs including several specialized associate firms. More than 1,300 projects of various sizes, covering areas of Architectural, Engineering, Environmental studied and GIS/MIS management disciplines with project cost ranging from US$ 0.5 – 800.0 million have been either successfully completed or are being implemented by COT. With only one ambition-we grow to render satisfactory multidisciplinary services to our clients. COT is believed to be the first engineering consulting firm in Thailand which implements ISO9001:2000 and ISO9001: 2008 in the whole organization