Centra Signs Five New Customers in China.

Business Editors/High-Tech Writers

WASHINGTON--(BUSINESS WIRE)--Sept. 10, 2003

Centra Software, Inc. (NASDAQ: CTRA), a leading provider of application software and services for real-time enterprise collaboration (RTEC), today announced at the Conferencing4Business Conference and Exhibition that it has signed five new customers in China through its reseller Ikonnet Technologies. Wu'xi Ariston Co., a subsidiary company of Merloni TermoSanitari; TCL Household Appliance Marketing Co.; LiteON Technologies Co. and Shanghai Leishen Consultant Co., a subsidiary company of Raytheon Professional Services have all selected Centra to provide a convenient and secure technology for online meetings and training sessions. In addition, Neusoft Institute of Information Technology, China's first higher learning institution that specializes in nurturing high-level talents in the field of computer science and engineering will use Centra to provide live, instructor-led distance education and training programs. Centra offers a robust live online environment, localized in both simplified and traditional Chinese, that works over a single low-bandwidth network connection with superior reach and universal access through firewalls and proxy servers.

"The current changes taking place in China have opened the door of opportunity for Centra products and technology," said Steve Thomas, director of operations for Centra AsiaPac. "We are very pleased to work with our partner Ikonnet, which has a strong reputation in China, an excellent marketing network, sales channel and substantial customer base as we introduce our services to this exploding market."

About Centra

Leading with a proven track record of helping approximately 1,200 organizations increase revenue and improve business performance, Centra offers enterprise application software that enables organizations to deliver real-time communication, collaboration and learning across the extended enterprise. Centra offers solutions that deliver enhanced integration of real-time collaboration capabilities with departmental business processes, such as sales and marketing, and virtual teamwork. Available in 14 languages, Centra applications can be deployed as on-site software or through our ASP service and are supported by an active ecosystem of value-added partners, including Microsoft, Oracle, Siebel, Deloitte Consulting, EDS and Cisco. Organizations across every major industry and market sector choose Centra, including Cadbury Schweppes, McKesson, Sysco, Viacom and Stanford University. Headquartered in Lexington, Massachusetts, Centra serves a worldwide customer base throughout the Americas, Europe, Asia and Australia. For more information, visit www.centra.com.

Safe Harbor Statement

With the exception of the historical information contained in this release, the matters described herein may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including but not limited to, statements concerning management's expectations regarding future results of operations, and statements that involve risk and uncertainties that may individually or mutually impact the matters herein, and cause actual results, events and performance to differ materially. Without limiting the foregoing, the words "believes," "plans," "expects," "anticipates" and similar expressions are intended to identify forward-looking statements. There are a number of important risk factors that could cause our results to differ materially from those indicated by such forward-looking statements. These risk factors include, but are not limited to, technological difficulties, the results of future research, uncertainty of product demand and market acceptance for the Company's Centra 7 collaboration platform and its other current and future products, the effect of economic conditions, the impact of competitive products and pricing and/or other factors outside the control of the Company, which are detailed from time to time in the Company's filings with the SEC, which are available at www.centra.com/investorrelations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to release publicly the result of any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Centra is a registered trademark of Centra Software, Inc. All other trademarks and service marks referenced herein are the property of their respective owners.