Founded in 1949 in Beloit, WI as H.G. Siepert & Company, Siepert & Co. LLP has grown to include over 20 people located in three offices. In 1974, a second office was established in Sycamore, Illinois. In 1994 a third office was established in Roscoe, Illinois. Our firm has grown from within. Each of our partners joined Siepert as a staff accountant and was later promoted to partner. This change in job title hasn't affected our working style, however. Maintaining face-to-face contact with our clients remains a priority for all of us. Our objective is to provide our clients with the best accounting, tax and financial services, on time...every time.

LOCATIONS 1920 West Hart Rd Beloit, WI  53511 Phone: (608) 365-2266 Fax: (608) 364-8727  2380 Bethany Rd. Sycamore, IL  60178 Phone: (815) 787-7657 Fax: (815) 787-6797  5302 Williams Dr. Roscoe, IL  61073 Phone: (815) 623-8818 Fax: (815) 623-9361