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Olsen Thielen does more than just accounting and taxes. We are a full service accounting and consulting firm focused on providing top quality solutions for our clients.

We believe our job is to anticipate your needs and provide innovative and proactive answers and solutions. By applying our professional talents and experiences to your unique business, Olsen Thielen brings timely and cost effective value to your business.

This philosophy has made Olsen Thielen a trusted adviser to business owners in the Upper Midwest for over 90 years.

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    Should I Care about Heartbleed?

    HeartbleedThe short answer is Yes! This security vulnerability is real and it’s serious. Chances are very good that you may be affected when you consider that 66% of websites on the Internet could be compromised.

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