Aspen Technology To Announce Financial Results for the First and Second Quarters of Fiscal 2005 and Filing of Restated Annual Report with S.E.C.

March 14, 2005
Earnings release and conference call planned for March 15, 2005, after market close

CAMBRIDGE, Mass., Mar 14, 2005 (BUSINESS WIRE) -- Aspen Technology, Inc. (Nasdaq: AZPNE) today announced that on March 15, 2005, the company will disclose financial results for the first two quarters of fiscal 2005, ended September 30, 2004 and December 31, 2004. Additionally, the company will also address its financial restatement on this call. The company plans on issuing these announcements after the market close and will hold a webcast and conference call beginning at 5:45 p.m. (Eastern) on Tuesday, March 15, 2005. The webcast will be open to interested parties by accessing the Investor Relations section of the company's website at and clicking on the webcast hyperlink.

What: AspenTech Conference Call and Webcast

When: Tuesday, March 15, 2005, 5:45 p.m. ET


How: Live over the Internet - Access the call through the AspenTech homepage

Contact: Joshua Young, Director of Investor Relations, Aspen Technology, Inc.

If you are unable to listen to the live webcast, the call will be archived on the Investor Relations section of AspenTech's website at the conclusion of the call.

About AspenTech

Aspen Technology, Inc. provides industry-leading software and implementation services that enable process companies to use simulation models to increase efficiency and profitability. aspenONE, a new generation of software solutions from AspenTech, represents a major step forward in helping process manufacturers achieve their strategic operational excellence initiatives. The first comprehensive offering to address the demands of the Enterprise Operations Management (EOM) market, aspenONE provides companies with integrated systems that enable them to manage and optimize their operational performance. Over 1,500 leading companies already rely on AspenTech's software, including Aventis, Bayer, BASF, BP, ChevronTexaco, Dow Chemical, DuPont, ExxonMobil, Fluor, GlaxoSmithKline, Shell, and Total. For more information, visit

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