Etherstack PCL (ESK) is a wireless technology company that specialises in developing, manufacturing, and licensing mission-critical radio technologies for wireless equipment manufacturers and network operators worldwide. The company focuses particularly on sectors such as public safety, defence, utilities, transportation, and resources. Etherstack's advanced technologies and solutions are integrated into radio communications equipment used in challenging and demanding environments. The company operates research and development facilities in London, Sydney, New York, and Yokohama, ensuring continuous innovation and support for their global client base across various sectors.