Winson Holdings Hong Kong Limited, an investment holding company, provides environmental hygiene and related, and airline catering support services in Hong Kong. The company offers environmental hygiene and related services, including public area and office cleaning, and waste disposal, as well as external curtain wall and window cleaning, marble floor maintenance and restoration, cleaning, and pest control services for residential, commercial and shopping complexes, public utilities, transportation systems, and government bodies. It also provides waste recovery, transportation, and disposal solutions; mist disinfection services; robotic cleaning services; and pest management services, including indoor pest management, and rodent prevention and control services for government departments, educational institutes, public utilities, and transportation systems, as well as residential, commercial, and shopping complexes. In addition, the company offers airline catering support services, such as food plating, tray-setting, packaging, and internal logistic for equipment flow, etc. to airline catering operators. Further, it provides property management and related services. The company was founded in 1983 and is headquartered in Tsuen Wan, Hong Kong. Winson Holdings Hong Kong Limited is a subsidiary of SZE's Holdings Limited.