Middle East Region a Strategic Focus Area in Process Industry Leader’s Growth Strategy

Aspen Technology to Present at the 11th Annual Needham Growth Stock Conference

Aspen Technology to Present at Deutsche Bank 2009 Technology Conference

Aspen Technology to Present at UBS Global Technology and Services Conference

Aspen Technology to Present at Two Investor Conferences in May

Aspen Technology to Present at Two Investor Conferences in August

Aspen Technology to Host Investor Day

Aspen Technology Announces Date of First-Quarter Fiscal 2010 Financial Results Release, Conference Call and Webcast

Files Annual Report on Form 10-K for Fiscal Year 2008

Files Annual Report on Form 10-K for Fiscal Year 2009; Files Quarterly Reports on Form 10-Q for First, Second and Third Quarters Fiscal 2009; Announces Selected Preliminary Financial Results for First Quarter Fiscal 2010