Our Team


CPA, Manager

DEPARTMENT: Accounting

Marianna Colpean, CPA, Manager

Marianna joined Maner Costerisan as an Audit intern in 2014. She worked as a full-time Audit associate from 2015 to 2018. Upon leaving Maner in 2018, Marianna moved to Grand Rapids to work as a controller at Baudville Brands, where she oversaw four private for-profit companies. In 2022, she returned to Maner as a manager in the Accounting and Outsourced Solutions department.

At Maner, Marianna is responsible for providing accounting support and services to for-profit, governmental and nonprofit clients. She assists with monthly financial accounting, audit preparation and identifying business improvements. A passionate problem-solver, Marianna enjoys this industry because she can help clients resolve complex accounting issues and provide solutions for efficiency improvements.

A graduate of Michigan State University with a Bachelor of Arts in Accounting, Marianna lives in Grand Rapids, Michigan, with her dog, Archie. Outside of the office, she enjoys rock hunting, tumbling rocks, traveling to the UP and hiking with her dog.

The best piece of advice I've gotten is that short-term gains lead to long-term pains. I've always strived to do the right thing in my work life and in my personal life, even if it is more difficult/time-consuming to do so. In the long run, it is always better to invest your time by doing what is right and ethical instead of taking shortcuts.

Years of Experience



Michigan Association of Certified Public Accountants (MICPA)


Certified Public Accountant (CPA)