Constellation Software Inc.

Constellation Software Inc.

October 29, 2007 17:00 ET

Bryan Texas Utilities Selects Cayenta, a Subsidiary of Constellation Software's Harris Subsidiary, as its Customer Information and Billing Solution

TORONTO, ONTARIO--(Marketwire - Oct. 29, 2007) - Harris Computer Systems ("Harris"), a subsidiary of Constellation Software Inc. (TSX:CSU) is pleased to announce that Bryan Texas Utilities (BTU) has selected Cayenta Utilities, a wholly owned subsidiary of Harris, as its customer information and billing solution for BTU's 45,000 central Texas customers.

BTU is a community owned municipality that has electrical generation along with transmission delivery, and distribution services. BTU's service territory covers approximately 800 square miles in Brazos, Burleson and Robertson counties; the company also handles billing of water, sewer and solid waste components. Bryan Texas Utilities' mission is "to give its customers exceptional service with reliable, competitively priced electricity while acting as a responsible and caring member of the community."

After careful consideration, BTU has evaluated the status of its existing customer information system and has decided to replace it with the more flexible, cost-effective and comprehensive Cayenta Utilities solution.

"BTU is committed to providing superior customer service. We believe the selection and implementation of the Cayenta Utilities solution will provide BTU the ability to accomplish our goal. The Cayenta solution will provide a robust, long term foundation and increase the responsiveness and efficiency of our customer service team", said Tom Hancock, BTU's Group Manager of Customer Service and Key Accounts.

"Cayenta is extremely pleased to have BTU as a client and partner. BTU has a long and impressive history of providing superior service to their customers. We are excited to be a part of BTU's future success. At Harris, this is only one milestone in our long term partnership. We look forward to a long and successful partnership with BTU", states Brad Atchison, Executive Vice President for Harris' Cayenta Business Unit.

Based on the current implementation schedule, Cayenta Utilities is expected Go Live in 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 mission-critical software solutions to address the specific needs of its customers in those industries.

Forward Looking Statements

Certain statements herein may be "forward looking" statements that involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of Constellation or the industry to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. These statements reflect current assumptions and expectations regarding future events and operating performance and speak only as of the date hereof. Forward looking statements involve significant risks and uncertainties, should not be read as guarantees of future performance or results, and will not necessarily be accurate indications of whether or not such results will be achieved. A number of factors could cause actual results to vary significantly from the results discussed in the forward looking statements. These forward looking statements are made as of the date hereof and Constellation assumes no obligation to update any forward looking statements to reflect new events or circumstances.

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