Constellation Software Inc. announced the resignation of John Billowits, Chief Executive Officer (CEO) of the Vela Operating Group ('Vela') and the appointment of Damian McKay as his replacement, with effect from September 30, 2020. John Billowits will continue to act as a director to Constellation and will assist in the transition over the next twelve months and beyond as required. Damian McKay has been with Constellation for five years as CEO of DMG, an operating group within Vela. Prior to joining Constellation, Damian served as CEO of Datamine and in various executive positions with General Electric in Australia.