Aspen Technology Announces Date of Selected Preliminary Fiscal 2008 First-Quarter Financial Results Release, Conference Call and Webcast

November 13, 2007

BURLINGTON, Mass.--(BUSINESS WIRE)--Nov. 13, 2007--Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, today announced that the company will release selected preliminary financial results for its fiscal 2008 first quarter, ended September 30, 2007, after the U.S. financial markets close on Tuesday, November 20, 2007.

In conjunction with this announcement, AspenTech will host a conference call and webcast on November 20, 2007, at 4:45 p.m. (Eastern Time) to discuss the Company's selected preliminary financial results, business outlook, and related corporate and financial matters.

The live dial-in number is (877) 239-3024, conference ID code 24153750. Interested parties may also listen to a live webcast of the call by logging on to the Investor Relations section of AspenTech's website,, 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 24153750 through November 28, 2007.

About AspenTech

AspenTech is a leading provider of award-winning process optimization software and services. AspenTech's integrated aspenONE solutions enable manufacturers to reduce costs, increase capacity, and optimize operational performance end-to-end throughout the engineering, plant operations, and supply chain management processes, resulting in millions of dollars in cost savings. For more information, visit

(C) 2007 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.

David Grip, +1 781-221-5273
Kori Doherty, +1 617-956-6730

SOURCE: Aspen Technology, Inc.