Aspen Technology to Present at Canaccord Adams 26th Annual Summer Seminar

August 4, 2006

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Aug. 4, 2006--Aspen Technology, Inc. (Nasdaq: AZPN), a leading provider of software and services to the process industries, today announced its President and Chief Executive Officer, Mark Fusco, will present at the Canaccord Adams 26th Annual Summer Seminar at the Marriott Long Wharf in Boston, MA.

AspenTech's presentation will begin at 8:00 a.m. EST on Thursday, August 10, 2006, and an audio webcast will be available in the Investor Relations section of the company's website (www.aspentech.com).

About AspenTech

Aspen Technology, Inc. provides industry-leading software and professional services that help process companies improve efficiency and profitability by enabling them to model, manage and control their operations. The new generation of integrated aspenONE (TM) solutions are aligned with the key industry business processes, providing manufacturers the capabilities they need to optimize operational performance, make real-time decisions and synchronize the plant and supply chain. Over 1,500 leading companies already rely on AspenTech's software, including Bayer, BASF, BP, Chevron Corporation, DuPont, ExxonMobil, Fluor, GlaxoSmithKline, Sanofi-Aventis, Shell and Total. For more information, visit www.aspentech.com.

AspenTech, aspenONE and the aspen leaf logo are trademarks of Aspen Technology, Inc., Cambridge, Mass.

CONTACT: Media:
Aspen Technology, Inc.
Elisa Logan, 617-949-1398
elisa.logan@aspentech.com
or
Investor:
Integrated Corporate Relations
Kori Doherty, 617-217-2084
kdoherty@icrinc.com
SOURCE: Aspen Technology, Inc.