In 2020, Calian acquired Tallysman Wireless Inc., a leading manufacturer of precision Global Navigation Satellite Systems (GNSS) antennas, and related components. Tallysman designs, manufactures and sells a very wide range of GNSS, Iridium and Globalstar antennas and related products into a market with a broad range of vertical applications that include precision reference systems, survey, timing, precision agriculture, unmanned and autonomous vehicles, marine and many more. The company also produces cloud based wireless tracking systems over two-way radio systems and 4G category M cellular systems, for applications ranging from school buses to municipal public works.