Winson Holdings Hong Kong Ltd. operates as an investment company, which engages in the provision of environmental hygiene and airline catering support services. The firm operates its business through two segments. The Environmental Hygiene and Related Services segment is engaged in the provision of public area and office cleaning, waste disposal as well as specialised services such as external curtain wall and window cleaning, marble floor maintenance and restoration and pest management services. The Airline Catering Support Services segment is engaged in the plating of meals, checking and tray setting food and non-food items onto meal tray and inserting completed meal trays into meal carts.