Accel Group Holdings Limited, an investment holding company, provides electrical and mechanical engineering services in Hong Kong. It engages in the supply, installation, and maintenance of mechanical ventilation and air-conditioning systems; drainage, water supply, swimming pool, and fountain systems; and electrical and control systems, as well as smart electrical control systems in buildings. The company also produces and sells disinfection spray equipment and accessories; and offers education consultancy services. In addition, it is involved in property holding activities; construction of buildings; and recycling business. The company was founded in 2000 and is headquartered in Tsuen Wan, Hong Kong. Accel Group Holdings Limited is a subsidiary of Lightspeed Limited.