Siepert & Company AccountantsConsultingTax & Payroll Service Siepert & Company Visit Website 2380 Bethany Road Sycamore, IL 60178 (815) 787-7657 (815) 787-6797 (fax) About About We provide the highest level of professional accounting, tax and financial services available anywhere. Our central focus is always on our clients and we work closely with them to demonstrate how the numbers affect them.