Siam Daikin Sales Co.,Ltd. was found in 1975, initially named the Siam Daikin Co.,Ltd. Later in 1982, the organization was restructured and renamed "Siam Daikin Sales Co.,Ltd."

The Siam Daikin Sales Co.,Ltd. has operated the business pertaining the air-conditioning as the authorized dealer with the seven following branches in Thailand;

1. Onnuch Head Office
2. Rangsit Branch
3. Pattaya Branch
4. Lumpoon Branch
5. Aummata Nakorn Branch
6. Suratthani Branch
7. Phuket Branch

In Thailand, the Daikin Groups has been composed of five companies as follows;
1. Siam Daikin Sales Co.,Ltd.
2. Daikin Industries (Thailand) Ltd.
3. Daikin Airconditioning (Thailand) Ltd.
4. Daikin Trading (Thailand) Ltd.
5. Daikin Compressor Industries Ltd.

The Daikin Groups have been under the administration of the Daikin Industries (Japan) Co.,Ltd., an air conditioner number one leading manufacturer for commercial buildings and industrial plants in Japan. In addition, Daikin is also on the top of residential air- conditioner, chiller, refrigerant, hydraulic and any conditioning equipment. Nevertheless, These are manufactured in the five following countries namely Japan, Belgium, Thailand, Czech Republic and china and also distributed in over 80 countries worldwide.