About Us

Locally Owned
Wheeler, Bieber and Associates is a locally owned and operated accounting firm. Since we first opened for business in 1988, we have grown to become one of the most dependable full-service providers for individuals, farming and ranching operations, and various small to medium sized businesses.

Our mission is to be a trusted partner and catalyst for financial success. We are dedicated to delivering professional accounting services that empower individuals and businesses to thrive. With a focus on integrity, accuracy, and innovation, we strive to exceed expectations, provide insightful financial guidance, and foster long-term relationships with our clients. Our commitment to excellence, continuous learning, and adaptability ensures that we remain at the forefront of the accounting profession, enabling us to navigate complexities and deliver superior results.

We are members of the American Institute of Certified Public Accountants (AICPA), the Montana Society of CPA’s and the North Dakota Society of CPA’s.
Combine in the Field

Firm History

1988 | Duane Smith merged with Richard Lange to form Smith, Lange & Associates

1992 | Gene Koch joined Firm

1992 | Changed name to Smith, Lange & Koch, PC

2000 | Gene Koch left Firm

2003 | Teresa Halley joined Firm

2007 | Changed name to Smith, Lange & Halley, PC

2010 | Cory Wheeler joined Firm

2013 | Duane Smith retired

2017 | Amy Bieber joined Firm

2020 | Richard Lange retired

2022 | Teresa Halley retired

2023 | Name changed to Wheeler, Bieber & Associates, PC