- B. GRIMM Group
 - Provides products and services in cooling, communication, construction, energy, healthcare, and transportation industries. - Loxley
- Company group providing products and services in chemical, construction materials, consumer products, media and entertainment, and telecommunication.
- Mahajak Group
- Distributor and manufacturer of industrial supplies, automotive parts, electronics, audio systems, and HVAC. Also engaged in leasing properties and office spaces. In Thai.
- Pan Group
- Engaged in footwear manufacturing, shoe machinery, environmental, real estate, and vegetarian food industries.
- Sony
- Offers video and audio equipment including product services.
- Saha Group@
- Siam Cement Group
- Siam Cement Group
- Commercial and industrial conglomerate engaged in construction material, pretrochemical, decorative, electrical, industrial supply, and machinery products.
- Siam Fiberglass
- Subsidiary of Siam Cement Group offering glasswool or fibreglass insulation products. Also in Thai.
- Siam Research and Development (SRD)
- Provides product testing, chemical analysis, and research services. In Thai.
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