Depend on Our People.

You want partners who understand your business and its unique needs. Partners who are proactive, experienced and knowledgeable – who understand your passion and care about your success.  At Olsen Thielen, we pride ourselves on our history of building long-lasting partnerships with our clients.  Our focus is on helping you achieve your organization’s goals. We offer a rare combination of experience, specialized skills and principles, and are committed to delivering outstanding service and value to your business.

Count on Our Advice.

Today’s business environment presents ever greater challenges and requires you to draw upon all your strategic and advisory resources to plan and execute effectively.  At Olsen Thielen, we offer the wide range of services and industry expertise that you might find in a larger firm, with the personalized attention of a smaller firm.  You can rely on our experience and dedication to help you achieve not only your goals for today, but your vision for the future.

Learn about what makes us different

The Olsen Thielen Experience

The Olsen Thielen Advisor

Available in print or electronically, this bi-monthly newsletter provides current and timely information to clients and subscribers. Between publications important tax and industry updates are published on our Advisor Blog.

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Updated Form 1099 & W-2 Reporting Deadlines

October 26th, 2016|0 Comments

As part of the tax reform package passed in 2015, Congress sought to address identity [...]

Do You Know How Much Your Business is Worth?

October 24th, 2016|0 Comments

As the owner of a small or closely-held business you likely consider your enterprise to [...]

Does Your Business Have Economic Sales Tax Nexus in South Dakota?

October 24th, 2016|0 Comments

South Dakota Senate Bill 106, signed in March of 2016, enacted a big change for [...]

 A Commitment to Quality and Success

JUX Law Firm

When Mark Santi, a Minneapolis-based attorney with JUX Law Firm, was approached by one of his clients who had concerns that he was potentially a victim of fraud in his business, Santi called on the fraud and forensics experts at Olsen Thielen.

Integrity Medicolegal Enterprises

Integrity’s relationship with Olsen Thielen began as a response to heightened interest from clients and prospects around the issue of data security. They wanted to take the next logical step and conduct a Service Organization Controls (SOC) audit.

Faribault Woolen Mill

When cousins Paul and Chuck Mooty purchased the Faribault Woolen Mill in 2011, they were drawn to the historic significance of the mill. To assist them, they called on Olsen Thielen & Co, Ltd.


Olsen Thielen has the knowledge and experience to serve a diverse client base across a wide range of industries.


Large enough to provide full service expertise, yet small enough to provide timely, personalized service.

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