Our Team


CPA, CGMA, Senior Manager


Kimberly Westfall, CPA, CGMA, Senior Manager

Kimberly joined Maner Costerisan in 2023 as a senior manager in the firm’s Audit department. She brings more than 16 years of auditing and accounting experience to the firm’s Nonprofit team.

Prior to her time at Maner, Kimberly served as finance manager for Berrien RESA in Berrien County, Michigan, and associate director of quality control for General Conference Auditing Service, where she was awarded Regional Manager of the Year in 2010.

Kimberly enjoys helping clients gain a better understanding of accounting and their financial statements so they can better serve their organizations. Her passion for numbers and helping people learn are what led her to choose a career in accounting.

Kimberly graduated from Andrews University with a Bachelor of Business Administration in Accounting. Originally from Virginia, Kimberly temporarily transplanted to Michigan for college. After working in Maryland for several years, Kimberly and her husband returned to Michigan in 2013. They now live in St. Joseph, Michigan, with their two kids.

In her free time, Kimberly enjoys spending time with friends and family, particularly on the boat or at the beach. During the school year, she is actively involved with kids’ activities at church and programs at her kids’ schools.

The best piece of advice someone has given me is to remember that people don't care how much you know until they know how much you care.

Years of Experience



American Institute of Certified Public Accountants (AICPA)

Michigan School Business Officials (MSBO)


Certified Public Accountant (CPA)

Chartered Global Management Accountant (CGMA)