Aspen Technology To Present at Needham Growth Conference

January 5, 2004
Company will update financial community on strategy for delivering Enterprise Operations Management solutions to the process industries

CAMBRIDGE, Mass., Jan 5, 2004 (BUSINESS WIRE) -- Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, today announced the company's management team is scheduled to present to investors at the sixth annual Needham & Company Growth Conference on Thursday, January 8, 2004 at 9:30 a.m. (Eastern). Participating in the conference will be David McQuillin, President & CEO and Charles Kane, Senior VP & CFO of AspenTech.

About AspenTech

Aspen Technology, Inc. provides industry-leading software and implementation services that enable process companies to increase efficiency and profitability. AspenTech's engineering product line is used to design and improve plants and processes, maximizing returns throughout an asset's operating life. Its manufacturing/supply chain product line allows companies to increase margins in their plants and supply chains, by managing customer demand, optimizing production, and streamlining the delivery of finished products. These two offerings are combined to create solutions for enterprise operations management (EOM), integrated enterprise-wide systems that provide process manufacturers with the capability to dramatically improve their operating performance. Over 1,500 leading companies already rely on AspenTech's software, including Aventis, Bayer, BASF, BP, ChevronTexaco, Dow Chemical, DuPont, ExxonMobil, Fluor, Foster Wheeler, GlaxoSmithKline, Shell, and Total. For more information, visit www.aspentech.com http://www.aspentech.com.

For Investors:
Aspen Technology, Inc.
Joshua Young, 617-949-1274
joshua.young@aspentech.com