Mr. Jamal Baksh reports

CONSTELLATION SOFTWARE INC. ANNOUNCES CONFERENCE CALL

Constellation Software Inc.'s president, Mark Miller, and its chief financial officer, Jamal Baksh, will host a live shareholder question-and-answer audio webcast on Oct. 1, 2025, at 2:30 p.m. ET, to discuss the transition of Constellation's leadership from Mark Leonard to Mr. Miller.

To access the call, please dial 1-877-879-1183 (toll-free in North America) or 1-412-902-6703 (international) and using conference ID 4557595. A conference operator will create a queue and introduce each questioner. You can also listen to the call via a link. A replay of the call can be accessed on-line for 12 months following the call.

About Constellation Software Inc.

Constellation's common shares are listed on the Toronto Stock Exchange under the symbol CSU. Constellation Software acquires, manages and builds vertical market software businesses.