Aspen Technology Announces Details for Conference Call and Webcast Related to its Financial Results Release Scheduled for February 19, 2009

February 17, 2009

BURLINGTON, Mass.--(BUSINESS WIRE)--Feb. 17, 2009-- Aspen Technology, Inc. (OTC: AZPN.PK), a leading provider of software and services to the process industries, today announced details for its conference call and webcast scheduled for February 19, 2009.

AspenTech will host a conference call and webcast at 8:00am (Eastern Time) on February 19, 2009, to discuss the Company's selected preliminary financial results for the second quarter of fiscal 2009, second and third quarter financial results for fiscal 2008, restated results for the first quarter of fiscal 2008, business outlook and related corporate and financial matters. The live dial-in number is (877) 239-3024, conference ID code (85678693). Interested parties may also listen to a live webcast of the call by logging on to the Investor Relations section of AspenTech’s website, http://www.aspentech.com/corporate/investor.cfm, and clicking on the “webcast” link. A replay of the call will be archived on AspenTech’s website and will also be available via telephone at (800) 642-1687 or (706) 645-9291, conference ID code (85678693) through February 26, 2009.

About AspenTech

AspenTech is a leading global supplier of software that optimizes process manufacturing – including oil and gas, petroleum, chemicals, pharmaceuticals and other industries that manufacture and produce products from a chemical process. With integrated aspenONE solutions, process manufacturers can implement best practices for optimizing their engineering, manufacturing and supply chain operations. As a result, AspenTech customers are better able to increase capacity, improve margins, reduce costs and become more energy efficient. To see how the world’s leading process manufacturers rely on AspenTech to achieve their operational excellence goals, visit www.aspentech.com.

© 2009 Aspen Technology, Inc. AspenTech, aspenONE and the Aspen leaf logo are trademarks of Aspen Technology, Inc. All rights reserved. All other trademarks are property of their respective owners.

Source: Aspen Technology, Inc.

Media Contact
AspenTech
David Grip, +1 781-221-5273
david.grip@aspentech.com
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Investor Contact
ICR
Kori Doherty, +1 617-956-6730
kdoherty@icrinc.com