About Olsen Thielen CPAs

Olsen Thielen was founded on the belief that personal attention, trusted advice, and quality services are the key elements to helping our clients succeed. Time and again, clients have taken us into their confidence to gain insight on business challenges beyond tax and financial statements. They rely on our responsiveness when a decision needs to be made today.

Since 1921, Olsen Thielen has developed an accounting practice that supports long-term client relationships through our demonstrated ability to expand services that fit a changing marketplace. Choose us for auditing and accounting, tax planning and preparation as well as a wide range of business and financial consulting services.