Get results that transform from a top accounting and business consulting firm
As needs arise in an ever-changing business environment, you need the resources of a firm with a broad array of resources.
At Wipfli, a top 20 national firm, we’re proud to give our clients the value and experience of a diverse firm that specializes in a wide range of services and industries.
With assurance, accounting, tax and consulting services customized to your needs, Wipfli helps you overcome challenges, achieve your goals and plan for future success.
St. Charles
2460 Executive Drive
St. Charles, MO
63303
Phone: | 636.441.5800 |
Fax: | 314.862.1549 |
Specialized services in the St. Charles area
Our associates focus on specific areas to be able to provide in-depth knowledge and industry-specific solutions. Some of the industries our St. Charles accountants and business consultants specialize in include: healthcare, manufacturing and distribution, nonprofit, real estate and construction.
Our St. Charles office also offers many specialized services for businesses and individuals, including tax services, audit and assurance, healthcare billing and recovery services, Medicare and Medicaid cost reporting, and litigation support.
Our St. Charles, Missouri office, formerly Mueller Prost, joined Wipfli effective June 1, 2021 to provide their clients with expanded capabilities, additional cutting-edge services and more technology consulting.
Recognition
Our Missouri offices have been recognized for the following:
- Accounting Today Regional Leaders – Top 100 Firms: Midwest 2020, 2021
- Inside Public Accounting Top 200 & Top 200 Fastest Growing Firms, 2018-2020
- St. Louis Post Dispatch, Best Places to Work, 2021
- St. Louis Business Journal Best Places to Work, 2016-2020
- St. Louis Business Journal, Largest Accounting Firms List, 2015-2020
- Small Business Monthly in St. Louis Best Accounting Firm 2015-2022
- St. Louis Business Journal, St. Louis’ biggest corporate philanthropists – midsize, 2020
- St. Louis Business Journal, Who’s Who in Law and Accounting 2015
Community involvement
We are invested in the communities where we work and live, and are involved with the following organizations:
- Greater St. Charles County Chamber of Commerce
- Alzheimer’s Association
- Cystic Fibrosis Foundation
- American Foundation for Suicide Prevention
- Five Acres Animal Shelter
- Boys & Girls Clubs of America
- Ronald McDonald House Charities
- College Bound
- St. Jude Children’s Research Hospital
- Associated General Contractors – Missouri Chapter
- LeadingAge Missouri
- Missouri Healthcare Association
- Missouri Alliance for Home Care
- Missouri Association of Manufacturers
- Missouri Restaurant Association
Partners, principals and associates

Chris Althage, CPA
Manager

Caty Beilsmith, CPA, CCFIP
Partner

Whitney Fossum, CPA
Senior Manager

Adam Hill, CPA
Partner

Kelly Kersting
Manager

Quinn Martin, CPA
Partner
