Diane Wollack CPA SC has been the premier certified public accountant for the city of Waunakee and the surrounding areas since 1986. We are a locally owned and operated business dedicated to providing our clients with exceptional service as well as high-quality workmanship.rnrnOur experts specialize in tax preparation for individuals, small businesses, and partnerships. Some of the other services we offer include bookkeeping, payroll services, compilations, and reviews.rnrnAt Diane Wollack CPA SC, our number one priority is our clients and providing reliable and efficient tax preparation services at competitive prices. So call today to make an appointment!. Certified Public Accounting