Olsen Thielen

Olsen Thielen & Co., Ltd. is a full-service accounting and consulting firm based in the Minneapolis-St. Paul region, recognized as a top 25 firm in the metro area. Founded in 1921 on principles of personal attention, trust, and quality service, the firm has maintained these core values for over a century. With a team of experienced CPAs and consultants, Olsen Thielen provides a comprehensive range of services including traditional accounting and tax services, business valuations, succession planning, employee benefits consulting, cloud accounting solutions, estate planning, and fraud investigation. The firm serves diverse industries including construction, real estate, manufacturing, telecommunications, and professional services. Known for building long-lasting client relationships and combining experience with specialized skills, Olsen Thielen delivers high-level service with personalized attention. The firm prioritizes staff development and community involvement through board service and charitable work.