Consent of Independent Registered Public Accounting Firm

EX-23 2 dex23.htm CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Consent of Independent Registered Public Accounting Firm

Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 033-58937) of United Technologies Corporation of our report dated June 26, 2009 relating to the financial statements of the United Technologies Corporation Defined Contribution Retirement Plan, which appears in this Form 11-K.

/s/ PricewaterhouseCoopers LLP

Hartford, Connecticut

June 26, 2009