Frank has over 29 years of experience in accounting. That experience has led to him specializing in tax preparation for both individuals and businesses, the preparation and review of financial statements, financial consulting, as well accounting for tribal and governmental organizations. Frank graduated from Northern State University with a Bachelor’s Degree in Accounting and Management. He is currently a member of the AICPA and the SD CPA Society. In his free time, Frank enjoys spending time with his family and hunting.
Adam Beyer, CPA Licensed Certified Public Accountant
(Sioux Falls Office)
Adam graduated from Augustana University, where he earned his bachelor’s degree in Accounting & Business Administration and his MPA in Accounting. Adam is also a Division II Basketball National Champion during his time at Augustana. He is experienced in the preparation and review of financial statements, tax preparation for both individuals and businesses, financial consulting, and real estate. He is currently a member of the Young Professionals Network, AICPA, and the SD CPA Society. Adam enjoys basketball, golf, and movie nights with his wife Hana.
Colleen Pesicka
(Wagner Office)
Colleen has been with the firm since 2007. Her specializations include payroll, accounts payable, accounts receivable, financial statement preparation, tax preparation, and non-profit accounting. Colleen received her degree in Accounting from Nettleton College. During her free time, Colleen enjoys spending time with her grandchildren, gardening, and watching movies.
Tena Wielenga
(Wagner Office)
Tena joined the firm in 2016 as the front desk manager for the Wagner office. She has since moved positions and now fills the role of staff accountant specializing in payroll, accounts payable, accounts receivable, and financial statement preparation. She received her Bachelor’s Degree in Accounting from Dordt College. Outside of work, Tena enjoys reading, traveling, and spending time with her friends and family.

Meggan Bosworth
(Sioux Falls Office)
Meggan joined the firm in the Fall of 2021 as staff accountant. She attended Southeast Technical College and has her AAS degree in Accounting. In her free time, she likes to go camping, make DIY projects, and spend time with her family and friends.
Abby Benson, CPA Licensed Certified Public Accountant
(Sioux Falls Office)
Abby joined the firm in the fall of 2021 following her graduation from Augustana University. She holds a bachelor’s degree in Accounting and Business Administration and an MPA in Accounting. Abby played four years of volleyball at Augustana. Abby specializes in tax preparation for both business and personal returns, financial statement preparation, and other accounting services. In her free time, she enjoys coaching volleyball and spending time with friends and family.


Bree Kotab
(Wagner Office)
Bree joined the firm in November 2021 as the front desk manager for the Wagner office. She specializes in payroll, accounts payable, accounts receivable, marketing, organization, and client communication. During her free time, Bree enjoys coaching and playing softball, traveling, and spending time with her friends and family.
Laura Thesenvitz
(Sioux Falls Office)
Laura joined the firm in the spring of 2015 as the front desk manager for the Sioux Falls office and has filled several roles over the years, including staff accountant, and is now office manager for the firm. Laura specializes in keeping the office running smoothly with project management, client communications and relations, and schedule coordination. She received her Associate’s Degree in Business Administration from Globe University. With her time outside of work, Laura enjoys time with her family and friends; camping, hiking, and supporting her kids in all their activities.
