Constellation Software Inc.

Constellation Software Inc.

June 25, 2008 17:00 ET

Saint Paul Regional Water Services ("SPRWS") Selects Constellation Software Subsidiary Advanced Utility Systems to Implement CIS Infinity

TORONTO, ONTARIO--(Marketwire - June 25, 2008) - Harris Computer Systems ("Harris"), a subsidiary of Constellation Software Inc. (TSX:CSU) is proud to announce that Saint Paul Regional Water Services (SPRWS) has selected Advanced Utility Systems' CIS Infinity to replace its legacy customer information and billing (CIS) solution.

Headquartered in Saint Paul, the State Capital of Minnesota, SPRWS provides retail water services to approximately 96,000 commercial and residential accounts in the City of Saint Paul and the surrounding suburbs of Falcon Heights, Lauderdale, Maplewood, Mendota Heights, Mendota, Lilydale, Sunfish Lake, and West Saint Paul.

CIS Infinity was selected to provide SPRWS with a CIS solution that could easily integrate with existing IT systems and provide value added customer service features to SPRWS end users.

Implementation of CIS Infinity is scheduled to begin in August 2008.

About Harris:

Harris is a leading provider of utility customer information systems (CIS), billing, and financial management software solutions. Since 1976, Harris has focused on providing feature-rich and robust turnkey solutions to public power and water markets as well as all levels of local government throughout North America. Harris' focus is on creating long-term relationships with our customers and ensuring that we meet the changing needs of our customers over time. For further information on Harris Computer Systems, please visit our website at, or call 888-847-7747.

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 industry specific mission-critical software solutions.

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