Exhibit 23.2

Consent of Independent Registered Public Accounting Firm

The Board of Directors
Aspen Technology, Inc.

        We consent to the incorporation by reference in Registration Statement Nos. 333-11651, 333-21593, 333-42536, 333-42538, 333-42540, 333-71872, 333-80225, 333-117637, 333-117638, 333-118952 and 333-128423 on Form S-8 of Aspen Technology, Inc. (the "Company") of our report dated November 6, 2009, with respect to the consolidated balance sheets of the Company as of June 30, 2009 and 2008, and the related consolidated statements of operations, stockholders' equity (deficit) and comprehensive income, and cash flows for each of the years then ended, and the effectiveness of internal control over financial reporting as of June 30, 2009, which reports appear in the June 30, 2009 annual report on Form 10-K of the Company.

        Our report dated November 6, 2009 on the effectiveness of internal control over financial reporting as of June 30, 2009 expresses our opinion that the Company did not maintain effective internal control over financial reporting as of June 30, 2009 because of the effects of material weaknesses on the achievement of the objectives of the control criteria and contains an explanatory paragraph that states that management has identified and included in its assessment the following categories of material weaknesses as of June 30, 2009: monitoring controls, periodic financial close process, income tax accounting and disclosure, and recognition of revenue.

/s/ KPMG LLP

Boston, Massachusetts
November 6, 2009

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Exhibit 23.2