ST. LOUIS--(BUSINESS WIRE)--June 11, 2008--Cass Information Systems, Inc. (NASDAQ: CASS) is one of only 27 suppliers nationally to be honored with a 2008 Supplier Excellence Award from AT&T Inc. (NYSE:T) Cass was selected for its service in utility management services.

Applying utility and energy cost analysis data supplied by Cass and its business partners has enabled AT&T to reduce its energy costs by an average of 4% each year. Cass, the nation's leading provider of transportation, utility and telecom invoice payment and information services, currently processes more than two million utility invoices annually for AT& T. The invoices relate to expenses for electricity, natural gas, water, sewer and solid waste, shredding, recycling and fuel supply.

Cass Information Systems, which has been involved in the payables services and information support business since 1956, disburses over $22 billion annually on behalf of customers from processing centers in St. Louis, Mo., Columbus, Ohio, Boston, Mass., Greenville, S.C. and Wellington, Kansas. Cass is part of the Russell 2000(R) Index.

Editor's note: Cass Information Systems, Inc. makes its headquarters at 13001 Hollenberg Dr. in Bridgeton, Mo. 63044.

    CONTACT: Cass Information Systems, Inc.
             Kenn Entringer, 314-721-2828
             http://www.cassinfo.com

    SOURCE: Cass Information Systems, Inc.