UniVision, which has been trading for nearly three decades, is a Hong Kong-based installer and designer of own brand and branded CCTV surveillance and integrated security systems. Maintenance and support services are also offered. The company is one of 28 preferred contractors under the Hong Kong government specialist contractors' list. Subsidiary Leader Smart provides electrical and mechanical services and 52.25%-owned T Com Tech sells CCTV and access control systems in Taiwan. UniVision floated on Aim in December 2005.