Wohlenberg Ritzman & Co., LLC is a Certified Public Accounting firm in South Dakota founded in 1955, dedicated to providing our clients with efficient and effective financial services involving audit & accounting, tribal government, tax, and management consulting. We pride ourselves on giving personal attention and quality service to each and every client.
We understand the complexities of the marketplace, but more than that, we understand and are here to serve the entrepreneurial spirit. Our firm will prudently assist you with the daily challenges of your business or industry beyond simply looking at your financial position. We are prepared to recommend sound financial strategies and to advise you on other key elements of effective business management.
Every client is important to us. Personal, quality service is the hallmark of our client relationships and includes assigning an engagement partner to facilitate your needs. An applicable team is formed and is accessible to you throughout the engagement. Additionally, all of the firm’s professionals are available to you for advice on complex and specialized issues.
Our professional staff understands and applies the requirements specified in the American Institute of Certified Public Accountants (AICPA) auditing standards, guides, procedures, statutes, rules, and regulations. The Firm successfully completed the most recent independent review of its system of quality control under the auspices of the AICPA Private Companies Practice Section (PCPS) in November 2021. Peer review is one of the requirements for membership in the PCPS, which was established in 1977. Wohlenberg Ritzman & Co., LLC is a member because our firm and all staff members are committed to continuous quality improvement.
From direct financial supervision to sophisticated management counsel, the experienced professionals at Wohlenberg Ritzman & Co., LLC are ready to provide you with the best in business management services to help you achieve your financial goals.
We invite you to explore the comprehensive services we have to offer.
Founded in 1955, dedicated to providing our clients with efficient & effective financial services involving tax, audit & accounting, tribes, and business consulting. We pride ourselves in giving personal attention and quality service to each and every client.
SUMMER HOURS:
JULY-AUGUST
Mon-Thu: 8am – 5pm
Fri: 8am – 12pm
Sat-Sun: CLOSED
© 2008-2023 All rights reserved | Wohlenberg Ritzman & Co., LLC | PRIVACY POLICY
Dawn comes to Wohlenberg Ritzman & Co., LLC after working 10 + years in the factoring industry and 6 years prior to that in the banking world. Dawn joined Wohlenberg Ritzman & Co., LLC in September 2025 as an Administrative Support Specialist. She will greet you with a smile and some conversation every time you see her in the Madison location. She has been in the Madison area for close to 20 years, so she is a familiar face in the community. Outside her professional life, she enjoys spending quality time with her family and friends, helping her husband on the family farm, coaching, volunteering, and reading. You will see her cheering on her 4 children at all sorts of events, so feel free to come chat with her at any time.
Certified Public Accountant (CPA)
Licensed in South Dakota
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor in Business Administration, Finance and Accounting,
with emphasis in Economics
Dordt University – Sioux City, Iowa
Chelsea was an Intern for Wohlenberg Ritzman & Co., LLC and rejoined the Firm full time in October 2024 as a Tax Manager. She has been in the tax field since 2017. Her main focus is on business and individual taxation with an emphasis on farmers, manufacturing, construction and real estate.
Certified Public Accountant (CPA)
Licensed in South Dakota
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor in Business Administration, Finance and Accounting,
with emphasis in Economics
Dordt University – Sioux City, Iowa
Dominik joined Wohlenberg Ritzman & Co., LLC as an Intern in 2023 and became a full time Staff Auditor I in June 2024. Dominik works primarily in the areas of financial statement audits, single audits, and management consulting.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Arts, Accounting, Banking/Finance
Mount Marty University – Yankton, South Dakota
Jared joined Wohlenberg Ritzman & Co., LLC as an Intern in 2024 and soon joined the staff full time in May 2024. As a Staff Auditor I, Jared’s focus is on auditing and accounting services.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Business Administration, Accounting
Mount Marty University – Yankton, South Dakota
Patrick joined Wohlenberg Ritzman & Co., LLC in November 2024 as an Audit Manager. He brings a wealth of knowledge to the Firm with 4 years of prior public accounting experience and 3 years of private accounting experience at a financial institution. His focus is successfully leading audit teams in the Firm’s preparation of financial statement audits and single audits for a variety of clients, and also assisting with special projects in the management consulting division.
Certified Public Accountant (CPA)
Licensed in South Dakota
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Master of Professional Accountancy
Augustana University – Sioux Falls, South Dakota
Bachelor of Science, Accounting, Cum Laude
Dakota Wesleyan University – Mitchell, South Dakota
After dedicating close to two decades of her career in the healthcare field working in geriatrics, hospice care, rehabilitation, and supporting individuals with disabilities to lead fulfilling lives, Ashley joined Wohlenberg Ritzman & Co., LLC in July 2024 as an Administrative Support Specialist. Her background serves her well in this role as she supports internal operations and external clients with care, respect, and problem-solving. She will greet you with a smile every time you see her at our Sioux Falls and Madison locations. Outside of her professional life, she values spending quality time with family and pets, and enjoys outdoor activities such as gardening, sports, camping, and hiking.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Member, Yankton Morning Optimist Club
Bachelor of Business Administration,
Mount Marty College – Yankton, South Dakota
Jacob joined Wohlenberg Ritzman & Co., LLC in 2022 as an Intern and joined the staff full-time in May 2023. As Staff Accountant I, his focus is on financial statement preparation, single audits and accounting.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Science, Professional Accountancy
Dakota State University – Madison, South Dakota
Bachelor of Business Administration, Accounting
Dakota State University – Madison, South Dakota
Associate of Science, Business Management
Dakota State University – Madison, South Dakota
Michael began his career serving our country in the United States Navy as a cryptologist. He was instrumental in military planning and operations specializing in trend analysis. Once out of the service, he focused on health and wellness and became a personal trainer before starting his own business in mobile app technology and broadcasting capabilities. In 2019, Michael joined Wohlenberg Ritzman & Co., LLC as a Management Consulting Associate with a focus on special projects and business efficiencies for WRC clients.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Pursuing Master of Business Administration
Dakota State University – Madison, South Dakota
Bachelor of Business Administration, Finance
University of South Dakota – Vermillion, South Dakota
Cassie joined Wohlenberg Ritzman & Co., LLC in 2012, bringing four years of banking experience with her. As our Audit Coordinator, she’s the go-to person for keeping the audit process on track. From sending out audit notifications and coordinating audit setups with the team to organizing documentation and tracking requests, Cassie makes sure everything runs smoothly. She also monitors timelines, keeps audit folders organized, and stays in close communication with staff to address progress, priorities, and any issues that come up.
In addition to her audit responsibilities, Cassie lends her expertise to bookkeeping and tax projects, showing her versatility and dedication to client needs. At our Madison office, her approachable and professional demeanor makes her a welcoming presence for both clients and coworkers.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Member, Yankton Morning Optimist Club
Bachelor of Business Administration,
Mount Marty College – Yankton, South Dakota
Jon has over 35 years of accounting experience with tribal casinos and served as a controller. He has experience in preparing financial statements, accounts payable, accounts receivable, 941’s, W2’s, other required tax returns, and preparing analysis reports for casino operations.
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Science in Business Administration, Accounting
University of South Dakota – Vermillion, South Dakota
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Arts, Accounting
Mount Marty College – Yankton, South Dakota
Kathleen has practiced public accounting since 1978, including owning her own accounting firm in Petaluma, California for 35 years. She has a broad industry focus and her areas of expertise include tax, tax planning, and strategic business consulting.
Certified Public Accountant (CPA)
Licensed in California and South Dakota
Member, American Institute of Certified Public Accountants
Member, South Dakota Society of Certified Public Accountants
Member, Santa Rosa Junior College Foundation
Treasurer, Petaluma GAP Winegrowers’ Alliance
Past Member, Santa Rosa Junior College Board of Trustees
Past President & Past Treasurer, Petaluma Chamber of Commerce
Past President & Past Treasurer, Petaluma Sunrise Rotary Club
Past Treasurer, Petaluma Lion’s Club
Bachelor of Arts
Hood College – Frederick, Maryland
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Arts, Accounting
Mount Marty College – Yankton, South Dakota
Michelle brings 20 years of public service in the human resource field to Wohlenberg Ritzman & Co., LLC. She has experience in recruiting/hiring, employment law, compensation, position classification, benefits, surveys and analysis, training, policy development and interpretation, performance management, employee relations, grievances, complaints, workers’ compensation, reductions in force, unemployment, and retirement. Michelle provides management consulting services to the clients of Wohlenberg Ritzman & Co., LLC with a focus on tribal casinos, tribal colleges, and tribal governments. She specializes in internal audits and human resource administration.
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Society for Human Resource Management (SHRM)
Austin Society for Human Resource Management (Austin SHRM)
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Bachelor of Business Administration with Human Resource Emphasis
Texas A&M University – College Station, Texas
Magan joined Wohlenberg Ritzman & Co., LLC in 2017, bringing a wealth of experience from her six-year career in private accounting. During this time, she honed her expertise across both the non-profit and for-profit sectors, gaining a deep understanding of diverse financial environments.
As an Audit Manager at WRC, Magan specializes in auditing and accounting services, with a particular focus on governmental and non-profit audits. Her commitment to excellence and meticulous attention to detail ensures that her clients receive comprehensive and reliable financial insights.
Outside of work, Magan enjoys staying active through running and spending time outdoors. She cherishes moments with her husband and their four children, whether it’s family adventures or attending her kids’ sporting events. Magan also loves unwinding with a good book whenever she gets the chance.
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Master of Business Administration
University of Sioux Falls – Sioux Falls, South Dakota
Bachelor of Business Administration, Accounting
University of South Dakota – Vermillion, South Dakota
Keith joined Wohlenberg Ritzman & Co., LLC in 2001 as a Staff Accountant and currently serves in the position of Senior Audit Manager. He specializes in preparing financial statements for a broad range of industries. He has over 45 years of accounting experience. Prior to joining the firm, Keith served as a Bank Examiner for a state regulatory authority, a Cashier for a community bank, and a Controller for an implement dealership.
Certified Public Accountant (CPA)
Licensed in South Dakota
Member, American Institute of Certified Public Accountants
Member, South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Bachelor of Science in Business Administration,
University of South Dakota –Vermillion, South Dakota
Richard (Dick) has been practicing in public accounting since 1970. After nine years of sole proprietorship, he joined Wohlenberg Ritzman & Co., LLC in July 1991. Dick provides audit services to school districts, municipalities, housing authorities, governmental entities, tribal governments and non-profit organizations. He has an enthusiasm for public accounting and works comfortably with his clients, assisting them with their business and accounting needs.
Certified Public Accountant (CPA)
Licensed in South Dakota
Member, American Institute of Certified Public Accountants
Member, South Dakota Society of Certified Public Accountants
Member & Past President, Madison Lions Club
Member & Past Treasurer, Madison Country Club
Past President, Trinity Lutheran Church Council
Past Member, Greater Madison Area Chamber of Commerce Board of Directors
Past Member, Madison Area Career Learning Center Board of Directors
Past Member, Trinity Lutheran Church Board of Trustees
Bachelor of Science in Business Administration, Accounting,
University of South Dakota – Vermillion, South Dakota
Cindy has over 35 years of combined management-level experience in national staffing, employee training, bonus systems, and payroll delivery systems. For the past 25 years, Cindy has provided management consulting services to the clients of Wohlenberg Ritzman & Co., LLC with a focus in tribal casinos, tribal colleges, and tribal governments. She specializes in internal audits, human resources/employee benefits, information technology, and major financial affairs, including set-up and delivery of payroll systems and serving in the position of interim Chief Financial Officer.
Adjunct Professor for Mount Marty College
Yankton, South Dakota
Adjunct Professor for Little Priest Tribal College
Winnebago, Nebraska
Master Degree in International Management (MIM)
Treasurer, Wild Turkey Days Committee
Spencer, Nebraska
Masters in International Management, Finance,
University of Denver – Denver, Colorado
Bachelor of Science, Chemistry,
University of South Dakota – Vermillion, South Dakota
Bachelor of Science, German,
University of South Dakota – Vermillion, South Dakota
Certified Public Accountant (CPA)
Licensed in Arizona and South Dakota
Chartered Global Management Accountant (CGMA)
American Institute of Certified Public Accountants
South Dakota Society of Certified Public Accountants
Vice President and Treasurer, Meridian District of Downtown Yankton
Past Board Member, Susan G. Komen South Dakota Affiliate
Past Member, Yankton Morning Optimist Club
Master of Professional Accountancy,
University of South Dakota – Vermillion, South Dakota
Bachelor of Arts, Accounting
Mount Marty College – Yankton, South Dakota
Blaine has practiced public accounting for over 35 years and has been a Partner of Wohlenberg Ritzman & Co., LLC for the past 20 years. His primary focus is business and individual taxes with extensive experience in estate, trust, 401K and employee benefit administration.
Certified Public Accountant (CPA)
Licensed in South Dakota
Member, American Institute of Certified Public Accountants
Member, South Dakota Society of Certified Public Accountants
Treasurer, Yankton Community Library Foundation
Past Member & Scorekeeper, Hillcrest Pro-Am Committee
Yankton, South Dakota
Bachelor of Science, Accounting
University of South Dakota – Vermillion, South Dakota
Kathryn has practiced public accounting since 1984 and specializes in providing professional and proactive services to tribal entities and financial institutions. She provides accounting and auditing services, as well as management consulting, to tribal governments and their related entities, focusing on giving her clients a practical, clear understanding of findings to help them improve their operations and providing management services as an interim finance officer. She has managed all stages of financial institution audits and director’s exams, including engagement reviews, planning, compliance testing, fieldwork, and report preparation.
Certified Public Accountant (CPA)
Licensed in Arizona, California, Iowa, Kansas, Minnesota, Montana, Nebraska, New Mexico, South Dakota, Texas, Wisconsin, and Wyoming
Chartered Global Management Accountant (CGMA)
Member, American Institute of Certified Public Accountants
Member, South Dakota Society of Certified Public Accountants
Member, Governmental Audit Quality Center – AICPA
Past Member, Mount Marty College Board of Trustees
Past Member, Mount Marty College Finance Committee
Past Member, Yankton Community Transportation Program Board
Past Honoree, University of South Dakota Alumnus of the Year
Master of Professional Accountancy,
University of South Dakota – Vermillion, South Dakota
Bachelor of Science, Accounting,
University of South Dakota – Vermillion, South Dakota
