Quantum D C Public Company Limited operates a food and beverage, and office-building rental business in Thailand. The company provides office building rental services, consulting, information technology system development and implementation, electricity and steam generation, solar panel installation services, and distribution of cameras, camcorders, mobile devices, and computer equipment. The company was formerly known as JCK Hospitality Public Company Limited and changed its name to Quantum D C Public Company Limited in November 2025. The company was incorporated in 2004 and is headquartered in Bangkok, Thailand.