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Olsen Thielen & Co., Ltd. does more than just accounting and taxes. We are a full service accounting and consulting firm, and a “Top 25” firm in Minneapolis and St. Paul, Minnesota. We focus on providing top quality solutions for our clients through our traditional accounting and tax services, as well as non-traditional services like valuations, human resource and employee benefits consulting, back-office cloud accounting solutions, estate, gift and succession planning, and fraud and forensic accounting.

Olsen Thielen serves commercial and not-for-profit organizations, manufacturing firms, utilities, cooperatives, governmental entities, wholesalers, retailers, and public companies in many industries.

Olsen Thielen offers a rare combination of experience, specialized skills and principles. We believe our job is to anticipate your needs and provide innovative and proactive answers and solutions, and we are committed to deliver outstanding service and value to your unique 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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  • Valuation and Forensic Services

    Valuation and Forensic Services

    Olsen Thielen announces the reorganization and rebranding of its wholly owned subsidiary, Minnesota Business Valuation Group. The newly formed Valuation and Forensic Services Group of Olsen Thielen & Co., Ltd combines the skillsets of Olsen Thielen’s existing valuation group with its forensic accounting and litigation support staff to create a more powerful offering for the firm’s clients.  Read more...

    Olsen Thielen Tax Planning Guide

    Olsen Thielen has released the 2014-2015 edition of their annual Tax Planning Guide. The guide gives you many tax-smart ideas about investing, education funding, estate planning, and saving for retirement.  Check out the online version of the Tax Planning Guide.

    Olsen Thielen Adviser

    2015 Mileage Rates

    transportationThe Internal Revenue Service has issued the 2015 optional standard mileage rates used to calculate the…

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    Uncle Santa?

    santa–In some Latin countries, Santa Claus is called “El Niesus” or “Papa Noel”; “Grandfather Frost”…

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