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EXCEL - IDEA: XBRL DOCUMENT - ASPEN TECHNOLOGY INC /DE/Financial_Report.xls
EX-32.1 - EX-32.1 - ASPEN TECHNOLOGY INC /DE/a2221018zex-32_1.htm
EX-31.2 - EX-31.2 - ASPEN TECHNOLOGY INC /DE/a2221018zex-31_2.htm
EX-21.1 - EX-21.1 - ASPEN TECHNOLOGY INC /DE/a2221018zex-21_1.htm
EX-10.29 - EX-10.29 - ASPEN TECHNOLOGY INC /DE/a2221018zex-10_29.htm
EX-31.1 - EX-31.1 - ASPEN TECHNOLOGY INC /DE/a2221018zex-31_1.htm
10-K - 10-K - ASPEN TECHNOLOGY INC /DE/a2221018z10-k.htm

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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors
Aspen Technology, Inc.

        We consent to the incorporation by reference in the registration statements (No. 333-42538, 333-42540, 333-71872, 333-117637, 333-118952, 333-128423, and 333-169657) on Form S-8 of Aspen Technology, Inc. (the "Company") of our report dated August 13, 2014 with respect to the consolidated balance sheets of the Company as of June 30, 2014 and 2013 and the related consolidated statements of operations, comprehensive income (loss), stockholders' equity, and cash flows for each of the years in the three-year period ended June 30, 2014, and the effectiveness of internal control over financial reporting as of June 30, 2014, which reports appear in the June 30, 2014 annual report on Form 10-K of the Company.

/s/ KPMG LLP

Boston, Massachusetts
August 13, 2014

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Consent of Independent Registered Public Accounting Firm