Aspen Technology to Present at Lehman Brothers Global Software and IT Services Conference

March 4, 2004

CAMBRIDGE, Mass.--(BUSINESS WIRE)--March 4, 2004--Company will update financial community on strategy for delivering solutions to the emerging Enterprise Operations Management market

Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, today announced the company will present to investors at the Lehman Brothers Global Software and IT Services Conference in Half Moon Bay, California on Tuesday, March 9, 2004 at 11:00 a.m. (Pacific). David McQuillin, President & CEO of AspenTech, will present an overview of the business as well as the company's long-term growth and product strategy.

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 (

CONTACT: Aspen Technology, Inc.
Joshua Young, 617-949-1274