CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form N-1A of our report dated November 21, 2008, relating to the financial statements and financial highlights which appears in the September 30, 2008 Annual Report to Shareholders of Baron Investment Funds Trust, comprising, respectively, Baron Asset Fund, Baron Growth Fund, Baron Small Cap Fund, Baron iOpportunity Fund and Baron Fifth Avenue Growth Fund (collectively the “Funds”), which is also incorporated by reference into the Registration Statement. We also consent to the references to us under the headings “Financial Highlights”, “Registered Public Accountants” and “Financial Statements” in such Registration Statement.

New York, New York

January 16, 2009