Perseus Group, Constellation Software

Software DevelopmentOntario, Canada1001-5000 Employees

Perseus Group is a software development company that acts as a global acquirer of vertical market software businesses, operating as one of six operating groups within Constellation Software Inc. (TSX: CSU). The firm is headquartered in Markham, Ontario, Canada, at 8133 Warden Avenue, 7th Floor, and employs between 1,001 and 5,000 people. Since 1995, Perseus has completed more than 1,000 acquisitions and pursues a buy-and-hold strategy to own and grow software businesses over the long term. It operates internationally with dozens of brands across multiple vertical markets, emphasizing leadership autonomy within acquired companies rather than centralized control. Recent acquisitions include Iron Solutions, Auto-IT Australia, Valeyo Inc., and Axacore, illustrating ongoing expansion across vertical markets.

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