July 20, 2004 FOR IMMEDIATE RELEASE Open Solutions Chairman & CEO Louis Hernandez, Jr. Named Finalist Of Ernst & Young Entrepreneur Of The Year® 2004 Award GLASTONBURY, Conn., July 20, 2004—  Open Solutions Inc. (NASDAQ: OPEN), a provider of integrated enabling technologies for financial institutions, announced that company Chairman and CEO, Louis Hernandez, Jr., was named a finalist by professional services firm Ernst & Young LLP for the Ernst & Young Entrepreneur Of The Year® 2004 Awards in New England in the Technology category.  Mr. Hernandez was part of a group of 14 finalists in the Technology category for New England by an independent panel of judges comprised of local community and business leaders and announced at an awards banquet held on June 24 at the Boston Park Plaza Hotel. Open Solutions is a provider of software and services that is designed to enable financial institutions to compete and service their customers more effectively. Open Solutions actively serves both the community banking and credit union marketplaces with an emphasis on providing its clients with a distinct technological, service and competitive advantage. “It is an honor to have been selected and recognized as an Entrepreneur of the Year Finalist by Ernst & Young, “said Louis Hernandez, Jr., Open Solutions Chairman & CEO. “All of us at Open Solutions are working diligently to continually provide our clients with what we believe is industry focused, innovative and effective enabling technology, software and service solutions. I would like to extend my sincere gratitude and appreciation to the panel of judges for this prestigious recognition.” Mr. Hernandez was eligible for consideration for the Entrepreneur Of The Year® 2004 national program.  Winners in several national categories, as well as the Overall National Ernst & Young Entrepreneur Of The Year®, will be announced at the annual awards gala in Palm Spring, CA on November 20, 2004. About The Ernst & Young Entrepreneur Of The Year® Awards Program The Entrepreneur Of The Year® awards program was created and is produced by professional services firm Ernst & Young LLP. As the first award of its kind, Ernst & Young Entrepreneur Of The Year® recognizes outstanding entrepreneurs who are building and leading dynamic and growing businesses. The program honors entrepreneurs through regional, national and global award programs in over 100 cities and 35 countries. About Open Solutions Inc. Open Solutions Inc. offers a fully featured strategic product platform that integrates core data processing applications, built on a single centralized Oracle(R) relational database, with Internet banking, cash management, CRM/business intelligence, financial accounting tools, interactive voice response, imaging and loan origination solutions. Open Solutions' full suite of products and services allows banks, thrifts and credit unions to better compete in today's aggressive financial services marketplace, and expand and tap their trusted financial relationships, client affinity, community presence and personalized service. For more information about Open Solutions, or its financial product line, contact Mickey Goldwasser by email at mgoldwasser@opensolutions.com, by phone at 860.652.3153 or via fax at 860.652.3156. For Investor Relations issues please contact David Henderson by email at ir@opensolutions.com or by phone at 860.652.3155. Visit Open Solutions' Internet site at www.opensolutions.com. Open Solutions Inc.(R) is a registered trademark of Open Solutions Inc. All other company and product names may be trademarks of their respective owners.