Founded in 1995 in Toronto, Ontario, Canada by Mark Leonard, Constellation Software Inc. is a leading Canadian software company specializing in the acquisition, management, and long-term development of vertical-market software businesses. Headquartered in Toronto, the company is historically recognized for building one of the world’s most successful decentralized software acquisition models and today operates through six operating groups: Volaris, Harris, Topicus, Jonas, Perseus, and Vela. Constellation serves customers in more than 100 different markets worldwide and maintains offices across North America, Europe, Australia, South America, and Africa. The company has more than 50,000 employees worldwide. For the year ended December 31, 2025, Constellation Software reported total revenue of USD 11.623 billion, reflecting its position as one of the world’s most significant acquirers and operators of mission-critical vertical market software businesses.
Updated 2026-03-20