Constellation Software Acquires Northpointe Institute for Public Management

TORONTO, ONTARIO--(Marketwire - May 3, 2011) -Constellation Software Inc. ("Constellation") (TSX:CSU) today announced that its wholly-owned subsidiary, Volaris Group Inc. ("Volaris") has completed the acquisition of Northpointe Institute for Public Management ("Northpointe"). This acquisition expands Volaris' presence in the Justice market.

An experienced criminal justice consulting and research firm providing software products, consulting, training and implementation services to federal, state and local criminal justice systems and policy makers, Northpointe serves more than 200 correctional agencies across North America. Established in 1989, the company has offices in Traverse City, Michigan and Golden, Colorado.

Northpointe joins CourtView Justice Solutions, a leading supplier of case and records management systems and related technology for courts, prosecuting attorneys, public defenders, law enforcement, and operators of detention facilities, within Volaris' Justice market segment.

About Volaris Group

Volaris acquires, strengthens and grows vertical market technology companies enabling them to be clear leaders within their focused industry. Volaris companies provide specialized, mission-critical solutions to vertical markets around the world including Agri-Food, Asset Management and Logistics, Justice and People Transportation. Volaris is an operating group of Constellation Software Inc. Learn more at www.volarisgroup.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.