Businesses starting with S
- S & S Telecom Ltd., P.
- S & Sons Trading Co., Ltd.
- S & T Contemp Co., Ltd.
- S & V Communication Service Network Co., Ltd.
- S & V Lamp Design Ltd., P.
- S & W Printing Ltd., P.
- S C Electric Co., Ltd.
- S C G (thailand) Co., Ltd.
- S C H Industries Co., Ltd.
- S C Johnson & Son
- S Film & Plate Co., Ltd.
- S Floral Design Co., Ltd
- S Graphic Design Shop
- S K Foods Co., Ltd.
- S K Shipping Co., Ltd.
- S K T Furniture Co., Ltd.
- S K W Steel Product Co., Ltd.
- S Kaew Ta Wee Co., Ltd.
- S M T Supply Co., Ltd.
- S New Light Halogen Lamp Industrial Co., Ltd.