Jacob Funds N-CSRS/ACertified semi-annual shareholder report (management investment company) (amended)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned officers of the Jacob Funds Inc., does hereby certify, to such officer’s knowledge, that the report on Form N-CSR of the Jacob Funds Inc. for the semi-annual period ended February 29, 2020 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as applicable, and that the information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of Jacob Funds Inc. for the stated period.