Our Staff

Although The CPA Group is one of the larger local accounting firms in the greater Grand Rapids area, our clients still receive personal and prompt service.

The CPA Group consists of 14 certified public accountants, three professional accounting staff members and three administrative support staff.

All of our certified public accountants are members of the American Institute of Certified Public Accountants (AICPA) and the Michigan Association of Certified Public Accountants (MACPA). Each certified public accountant is licensed by the State of Michigan and fulfills all continuing education requirements according to state standards. Our staff is active in the community, serving on local chambers of commerce, at schools and in churches.


Dennis Bergsma, CPA


Denny has been with the firm since 1983 and serves as the managing partner. He specializes in assisting with all aspects of tax and business planning. He graduated from Ferris State University with a B.S. degree in accounting.

Paul Wassink, CPA, ABV


Paul works with both businesses and non-profit organizations. He provides services including audit and reviewed financial statements, business and income tax consultation, business valuations, and litigation support. He has a B.A. from Dordt College and is a member of the Institute of Business Appraisers. Paul also holds an accreditation in business valuations.
Jack Jipping, CPA


Jack has an extensive background in financial analysis, management issues, taxation, business start-ups, partnerships, strategic planning and information systems. With a BBA from the University of Michigan, prior “Big 8” accounting firm and private sector experience, Jack has over 30 years of successfully assisting business owners in all facets of business.
John Bibbler, CPA


John joined the firm in 1988 in a merger with his prior firm. John acts as an advisor and consultant to numerous small and mid-market businesses in the areas of litigation support, accounting and tax. He has represented clients before various tax authorities on a variety of issues. He has a B.S. in accounting from Western Michigan University. John was formerly an auditor for the State of Michigan.
Jan Vander Weide, CPA


Jan serves a wide variety of clients in all areas of accounting, tax preparation and tax planning.

She has a BBA from Davenport University.

Chad Groggel, CPA


Chad works with a variety of small and mid-sized business clients, as well as individuals. He assists them with their tax, accounting and financial planning needs. Chad also provides general business consulting and QuickBooks training and support. He has a BBA, magna cum laude, from Grand Valley State University.

Tim Rykse, CPA


Tim provides accounting and taxation services for a wide variety of clients including manufacturers, construction, restaurants, real estate and service industries. He also provides individuals with tax service and trains clients to use QuickBooks. He has a BBA from Grand Valley State University. He previously worked as a controller for many years with a manufacturing company.

Professional Staff

Deanna Brown, CPA


Deanna provides accounting and tax services to a wide variety of clients. She also trains clients in the use of QuickBooks and consults in other accounting software. She has a BBA from Michigan State University.

Kay Snyder, CPA


Kay provides audit and review services for businesses and employee benefit plans. She also works on individual and business taxation. She has a BBA from Western Michigan University.

Lori Engen, J.D., CPA, MST


Lori concentrates her work in all areas of taxation. This includes corporate, partnership, individual, estate and trust matters.

She has a B.A. in legal administration and a MST from Grand Valley State University. Lori also holds a J.D. from Thomas M. Cooley Law School.

Kelly Flietstra, CPA


Kelly works on audit and review services for businesses, employee benefit plans and non-profit organizations. She also works on business taxation. She has a BBA from Grand Valley State University.

Steve Helder, CPA


Steve provides clients with accounting and tax services. He also provides technology services for the firm.

He has a B.S. in accounting from Calvin College.

Terry Woodwyk


Terry provides accounting and tax services including the use of Quickbooks.

He has a BBA in accounting and a MSA in accounting from Grand Valley State University.

Amanda Wagenmaker


Amanda provides accounting and tax services for clients and also handles administrative services for the firm.

She has a B.S. in business management from Calvin College.

Jon Feyen, CPA


Jon has experience working with small business owners, nonprofit organizations, and high net worth individuals. He works with clients to provide accounting and taxation services that maximize the client’s potential. Jon graduated summa cum laude from Robert Morris University in Pittsburgh Pennsylvania with a B.S.B.A. degree in accounting.

Peggy Myaard, CPA, MST


Peggy focuses her work in taxation with an emphasis on agriculture and fiduciary work.

She has a B.S in accounting from Michigan State University and a MST from Grand Valley State University.

Zach Medendorp, CPA


Zach joined the firm March 2021. Prior to working at the CPA Group, he worked as an auditor primarily auditing local governments, municipalities, and nonprofits across Michigan. Zach has a bachelor’s degree in Accounting from Spring Arbor university and obtained his CPA license in December of 2020. 

Brenda Jansen


Brenda joined the firm in June 2018 and brings experience from her time working for local businesses and nonprofits. She provides Quickbooks support, bookkeeping, payroll tax filing and tax preparation services for individuals and small business owners. Brenda graduated summa cum laude from Cornerstone University with a B.S. in Accounting. She also received her Masters of Business Administration (M.B.A.) from Cornerstone.  

Michelle Hendrickson


Michelle is a graduate of Grand Valley State University, with a BBA, majoring in accounting and finance. She provides a range of services for clients, including accounting, tax and QuickBooks consulting as a QuickBooks Online Proadvisor.

Lorie Emelander


Lorie joined The CPA Group in September 2020. She has 17 years of experience working for a smaller accounting firm. She brings a wide variety of skills to The CPA Group to help in accounting and in tax preparation.
Bobbi Hahn

Accountant Assistant

Bobbi assists with accounting services and handles administrative services for the firm. She has a BA from Calvin College.

Sheri Alman

Administrative Assistant

Sheri joined the The C.P.A. Group, P.C. in August 2018, after working as a Legal Assistant for an Elder Law Firm for the past 12 years.  Before that Sheri worked in the accounting field. 
She does a variety of tasks at our front desk including answering the phones and greeting guests. 
She has an A.S. in Accounting from Davenport University.

Dawn Brumels

Administrative Assistant

Dawn works part time as an Administrative Assistant.  During tax season, she is busy processing tax returns and payroll documents.  She also assists the front desk and performs various administrative tasks as needed. 

Elly Brink

Administrative Assistant

Elly does an assortment of administrative and accounting work. She is a full time student at Davenport University pursuing a Bachelor’s Degree in Business.

Ann-Marie VanHeulen

Administrative Assistant

Ann-Marie joined The CPA Group in October 2020. She comes from the large international firm located downtown Grand Rapids, BDO. Before she pursued her career at BDO she was on the Administrative team at Huntington Bank for over 10 years. She brings a wide variety of ability and knowledge to The CPA Group and is a full-time Administrative Assistant on our team.