Welcome to the Hogan - Hansen web site. Hogan - Hansen is a full service certified public accounting and consulting firm founded in northeast Iowa in 1924. Since that date, the firm has grown into an organization of highly trained professionals who serve you today with a wide array of client services in all areas of business and personal financial affairs from offices in Algona, Belmond, Cedar Falls, Cedar Rapids, Clear Lake, Mason City and Waterloo. Although our growth has been rapid, we have continually strived not only to maintain but to improve the exceptional service we provide to our clients.