Agribusiness & Cooperatives

"So many things change so fast and GT stays up on those changes."

Credit Unions

"Every time we're with them, we learn something new. They make us better."

Government Entities

"Talented, knowledgeable and still a grassroots group. No one feels inferior around them."

Welcome to Gardiner Thomsen, CPAs

Leading CPA services throughout the Midwest for Agribusiness and Cooperatives, Credit Unions, Government and Public Entities, Non-profit and Small Business, and Personal tax.

As CEO, General Manager or Owner, you strive to become an expert at running your business. Or perhaps, you are on the board of directors and must guide management as they work on carrying out the strategic plans of the organization.

Whatever your position, the decisions you make today can end up affecting your organization for years to come. Therefore, it is important to have a trusted partner who will challenge you to become more profitable and effective– a CPA firm with extensive experience and profound knowledge of the accounting standards and tax laws specific to your industry.

That’s exactly what you’ll find at Gardiner Thomsen.

Since 1964, Gardiner Thomsen has grown to be one of the leading and most respected firms providing CPA services throughout the Midwest. We specialize in accounting and business advisory services for the cooperative and agribusiness industries, credit unions, government and public entities, non-profit and small businesses, and personal tax. Our growth and success is evidence of our dedication to being trusted business advisors to our clients.

Over the years, Gardiner Thomsen has expanded our CPA services in Des Moines, Iowa to include other locations in Charles City, Iowa; Lincoln, Nebraska; and Sioux Falls, South Dakota. Our dedicated staff is well equipped with the experience and insight to help you meet your business goals.

Accounting is more than just a routine, compliance activity. It is an opportunity for us to help you interpret your financial information so that you can make educated decisions and become more profitable. Please browse through our site to learn more about the CPA services we offer.

AICPA logoWe are well known for going the extra mile, in many ways. Whether you are looking for CPA services in Des Moines, Iowa, or even surrounding states and beyond, there is no client too far out of reach for our seasoned professionals to serve.