Our Team

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Dennis D. Theis

Dennis joined Maner Costerisan in 1990 upon his graduation from college. As a
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Brandy Terwilliger

As a senior manager in the tax department, Brandy focuses on tax planning and
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Jeffrey C. Stevens

Jeff joined Maner Costerisan in 1983. As President, he guides the firm’s
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Timothy H. Adams

Tim joined Maner Costerisan in 1999 after the firm merged with his former
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Careers at Maner

Before you commit to a future employer, consider what is important to you: Is it about the name recognition of your company? Being one of the many faces in a stadium full of faces? Your career is about growing as a professional and continuing to enjoy your personal freedoms.
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Timely Opportunities Blog

Business Success in Just 5 Easy Steps!

Personal touches, like sending a follow up thank you note or a small gift via snail mail after a purchase, go a long way toward customer loyalty. 

Whether you’re at the head of a
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What Our Clients Have to Say

Linda Mulder, Grand River A&W

In our relationship with Maner Costerisan, we have been extremely impressed with the quality of their work, the professionalism they display and timeliness of the information they
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