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  • Mueller & Co LLP


    Accountants & Auditors

    About Us

    Mueller is a certified public accounting and business consulting firm located in the Chicago metropolitan area with offices in Elgin, Orland Park, and Chicago.. Since 1968 the firm has provided accounting, tax, assurance, and management consulting services, to privately held and publicly traded companies, local governments, and not-for-profit organizations within a wide variety of industries. Our services include:

    -Employee Benefit Audits
    -Service Organization Controls (SOC) Audits
    -Fraud & Forensic Accounting Services
    -Accounting Services (Outsourced Accounting, QuickBooks®)
    -Tax (State & Local, International)
    -Business Valuations
    -Mergers and Acquisitions Services
    -Business Consulting Services (Budgeting, Forecasting, Management Training)

    Our firm is a reflection of years of listening and caring for our clients. We are proud of the professional and personal relationships developed within our communities. What started out as a small CPA firm has blossomed through acquisitions and organic growth, into an organization that employs approximately 170 individuals including partners, wealth management advisors, professional staff accountants, and auditors; who are supported by paraprofessionals and administrative personnel.

    Crain’s Chicago Business listed Mueller as a top 15 largest accounting firm in the Chicago area and Inside Public Accounting has listed us the 218th largest accounting firm in the U.S. We also have earned the distinction of one of the “Best Places to Work in Illinois, 2011 - 2019''.

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    Rep/Contact Info

    Ms. Dana Campagna
    • Phone: (847) 888-8600
    Ms. Amy Chamoun
    • Phone: (847) 888-8600
    Ms. Joanne Meacham
    • Phone: (847) 888-8600
    Ms. Beth Ulbrich
    • Phone: (847) 888-8600
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