Providing Professional Public Accounting Services

Listen. Solve. Simplify.

Certified Public Accountants & Advisors of Sioux Falls

Our Mission

Our mission is to serve God, our clients, and our community by providing superior accounting services.


Lamfers & Maas knows your time and money are important. Tell our public accounting experts your story and let us help your Sioux Falls business. Count on us for tax, audits, valuations in Sioux Falls and advice. Consistency and accuracy is our guarantee.

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Lamfers & Maas CPAs and business advisors are professional and personal Sioux Falls accountants. We work one-on-one with you and your business to find the areas that need attention. It’s how your business treats your clients and how we treat you.

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You can relax with Lamfers & Maas, Sioux Falls accountant, working for you. Our rates are reasonable and our professional staff offer refreshing customer service. Your finances and taxes are taken care of so you can take time for yourself and focus on your business.

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Helpful Links

Tax Guide

Plan for your taxes before your business is off the ground.

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We'll teach your company how to accurately keep records. 

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We'll help you decide what the best organization is for you.

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Contact Us

Drop us a line!

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Better yet, see us in person!

We love our clients, so feel free to visit our Sioux Falls location during normal business hours.

Lamfers & Maas

520 West 10th Street, Sioux Falls, SD 57104, USA

(605) 332-8500