Constellation Software Inc. Announces Commencement of Share Purchases With Respect to Employee and Director Plans

TORONTO, ONTARIO--(Marketwire - March 25, 2011) - Constellation Software Inc. ("Constellation" or the "Company") (TSX:CSU) today announced that it has paid employee bonuses and director compensation in respect of the 2010 fiscal year and will commence purchasing shares on behalf of the employees and independent directors as stipulated in its various compensation plans.

Consistent with previous years, and as outlined in the Company's Annual Information Form dated March 25, 2011, Constellation requires certain of its employees and directors to reinvest portions of their annual compensation in common shares of the Company. For fiscal 2010, the total bonus paid to all employees was approximately US$51 million. The reinvestment obligations pursuant to the bonus plan, along with the payment of director's fees, will require the purchase of approximately US$13 million worth of Constellation shares in the open market. No shares of the Company will be issued from treasury with respect to the above noted compensation plans.

All purchases will be made through an independent third party purchasing agent. It is anticipated that the share purchases will be made over the course of several months. The purchasing agent will execute the trades in accordance with certain pre-established rules, which are intended to limit the impact on the Company's share price. Constellation's Annual Information Form is available at www.sedar.com.

About Constellation:

Constellation's common shares are listed on the Toronto Stock Exchange under the symbol "CSU". Constellation Software is an international provider of market leading software and services to a number of industries across both the public and private sectors. The Company acquires, manages and builds vertical market software businesses that provide mission-critical software solutions to address the specific needs of its customers in those industries.