Exhibit (j)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Post-Effective Amendment to Registration Statement No. 33-68124 on Form N-1A of our report dated December 18, 2025, relating to the financial statements and financial highlights of Alger Capital Appreciation Institutional Fund, Alger Focus Equity Fund, Alger Mid Cap Growth Institutional Fund, and Alger Small Cap Growth Institutional Fund, each a series of The Alger Institutional Funds (the “Trust”), appearing in Form N-CSR of the Trust for the year ended October 31, 2025, and to the references to us under the headings “Financial Highlights” in the Prospectuses and “Independent Registered Public Accounting Firm” and “Financial Statements” in the Statement of Additional Information, which are part of such Registration Statement.

/s/ Deloitte & Touche LLP

New York, New York

February 27, 2026