EXHIBIT 99.906CERT CERTIFICATION PURSUANT TO RULE 30A-2(B) UNDER THE 1940 ACT AND SECTION 906 OF THE SARBANES-OXLEY ACT I, Stuart D. Bilton, Chief Executive Officer of Aston Funds (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: 6/29/10 /s/ Stuart D. Bilton ---------- ---------------------------------------- Stuart D. Bilton, Chief Executive Officer (principal executive officer) I, Gerald F. Dillenburg, Senior Vice President, Secretary & Treasurer of Aston Funds (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: 6/29/10 /s/ Gerald F. Dillenburg ---------- ---------------------------------------- Gerald F. Dillenburg, Senior Vice President, Secretary & Treasurer (principal financial officer)