ISP Global Limited, an investment holding company, sells sound and communication systems and related services for various building systems in Singapore, Hong Kong, Malaysia, and the People's Republic of China. The company sells sound and communication systems and related services; provides integrated services of sound and communication systems with a focus on customization, and installation of sound and communication systems in buildings; and alert alarm system services. It serves government agencies, private organizations, and ultimate users. The company was founded in 2002 and is headquartered in Central, Hong Kong. ISP Global Limited is a subsidiary of Express Ventures Global Limited.