Our Team

Mary Angst, CPA, Manager

Mary joined Maner Costerisan in 2024 and is a manager in the Accounting and Outsourced Solutions department. Mary provides accounting and controller services and solutions to small business clients, where she provides monthly close and financial statement preparation.

Prior to Maner, Mary spent 20 years working in the professional services industry. She served as CFO/director of finance for a public relations and marketing firm and has acted in a variety of leadership roles with civil engineering, consulting and environment engineering organizations.

Mary is passionate about helping clients and businesses improve their business operations through financial data and analyses that highlight areas of success and improvement. She enjoys working with clients in various sectors and highlights Maner’s emphasis on being a consultant, not just a provider of accounting services.

Mary graduated from Michigan State University with a Bachelor of Arts in Accounting and a Master of Business Administration with an emphasis in Managerial Accounting. She lives in Laingsburg, Michigan, and has four grown daughters. In her spare time, Mary enjoys biking, hiking, kayaking and spending time with friends and family.  She’s also very active on her community’s board of education, serving for more than 14 years.

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