- Diethelm Trading (DTL)
 - Manufacturer and trader of variety of products. Also offers accounting, warehousing, and logistics services. - Jaroenmitr Group
- Maker of iron, stainless steel, and fibreglass water and storage tanks; also other machinery and tools such as motors, wheelbarrows, and compactors.
- Johann Gottfried Schuette & Company
- Develops, produces, and exports household and office furnishings and accessories, travel items, textiles, clothing, and more.
- Osotspa Group
- Maunfacturer specializing in pharmaceutical, beverage, food, personal care, health and hygiene products.
- Pintoys
- Producing wooden toys, games and children's furnitures.
- Saha Group (2)
- Saha Union Public Company
- Manufacturer of fabrics, yarns, sport shoes, plastics, and more products.
- Yelowcare Co., Ltd.
- Specializes in baby products and computer accessories.
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