Redline Communications is a multinational wireless communications network designer and manufacturer, with headquarters in Markham, Ontario, Canada. They specialize in developing and selling wide-area industrial networks that operate over wide geographic areas. Their products and technologies are utilized in various sectors such as Oil and Gas, Military, Government, and Telecom Service providers. Redline's networks are sold directly to end customers, and their wireless terminals are distributed through resellers. The company has a history of both growth and challenges, including a listing on the Toronto Stock Exchange and a settlement in a class action lawsuit. Redline's focus shifted to the oil and gas industry in recent years, and in 2022, the company was acquired by Aviat Networks.