who we are

We Pride Ourselves in Employing Exceedingly Talented Professionals

When you choose AZ, you’re choosing a deep bench of industry experts dedicated to providing the best Montana CPA and technology services to businesses.

What People Are Saying About AZ

Great partnership with high ethical standards and a wide variety of services offered. AZ has been outstanding to have as a business partner. The relationship formed goes much further than just another year end tax filing.

Libbey Winderl

Google Review

I am an employee of AZ and am proud of their continued recognition, from AICPA, NASBA, 20 Under 40, the Governor’s Equal Pay for Equal Work Task Force and many more. To top it off, I also get to serve absolutely amazing clients every day.

Amy Cristaldi

Missoula Office

AZ has saved us a bundle of money and most of all relieved any anxiety about money issues. They keep us up to speed on our LLC as well as personal tax issues. Their advice on structuring ourselves wisely for retirement is invaluable.

Tony Marchi

Google Review

I am an employee at the Anderson ZurMuehlen Missoula office and am so impressed with the leadership of this office. They care about the wellbeing of their employees, as well as the quality of work they are delivering to clients. Truly a stellar group!

Maddie Starke

Helena Office

Latest News

Our Montana CPAs, business advisors, and technology experts are dedicated to delivering valuable information and resources to you. Read our latest:

These accountants work primarily on audits of all types and will be the new friendly faces you'll see at your next audit!
We are pleased to announce the promotions for our 2022-2023 fiscal year.
Under CECL, organizations will recognize an allowance for credit losses that are expected to be incurred in the future.

Our Awards & Affiliations

Anderson ZurMuehlen to Combine with Pinion

While we are expanding, your success remains our highest priority.