EXHIBIT b - --------- CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT --------------------------------------------------------------- Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned officers of the Frontegra Funds, Inc., does hereby certify, to such officer's knowledge, that the report on Form N-CSR of the Frontegra Funds, Inc. for the period ended December 31, 2003 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 the Frontegra Funds, Inc. for the stated period. /s/Thomas J. Holmberg, Jr. /s/William D. Forsyth III - ----------------------------------- ----------------------------------- Thomas J. Holmberg, Jr. William D. Forsyth III Co-President, Co-President and Treasurer, Frontegra Funds, Inc. Frontegra Funds, Inc. Dated: March 1, 2004 ---------------------------- This statement accompanies this report on Form N-CSR pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed as filed by Frontegra Funds, Inc. for purposes of the Securities Exchange Act of 1934.