Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of Nortech Systems Incorporated (the “Company”) of our report dated March 26, 2026, relating to the consolidated financial statements of the Company, appearing in the Annual Report on Form 10-K of the Company for the year ended December 31, 2025, filed with the Securities and Exchange Commission.

/s/ Baker Tilly US, LLP

Minneapolis, Minnesota

May 20, 2026