TORONTO, ONTARIO--(Marketwired - Sept. 3, 2015) - Constellation Software Inc. ("Constellation") (TSX:CSU), announced today that it has entered into, through its Perseus division ("Perseus"), a definitive agreement to acquire the Market Leader business from the Zillow Group. The sale is expected to close by the end of the year.

About Constellation Software Inc.

Constellation Software acquires, manages and builds vertical market software businesses that provide mission-critical software solutions.

About Perseus division

The Perseus division is a provider of software solutions to a number of vertical markets. As an operating group of Constellation Software Inc., Perseus acquires, manages, and builds software businesses which provide specialized, mission-critical software solutions. Perseus companies seek to become leaders in their markets by improving their operations, growing through organic initiatives, and seeking acquisitions that can strengthen their market position.