Aspen Technology to Present at the Deutsche Bank 2011 Small & Mid Cap Conference

Aspen Technology to Present at the Canaccord Growth Conference

Aspen Technology to Present at the Canaccord Genuity Growth Conference

Aspen Technology to Present at Upcoming Cowen and UBS Investor Conferences

Aspen Technology to Present at Upcoming Conferences in May

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 Present at Two Investor Conferences in August

Aspen Technology to Present at the William Blair Growth Stock Conference