Miller Cooper & Co., Ltd. Email Format

AccountingIllinois, United States201-500 Employees

Miller Cooper & Co., Ltd. is an accounting firm based in Deerfield, Illinois, that has served entrepreneurial and middle-market businesses since 1919. It ranks as the 10th largest accounting firm in Chicago and emphasizes tailored client service and long-standing relationships with privately held companies. The firm maintains a national footprint and offers global capabilities through its Nexia International membership, enabling access to expertise beyond its local market.

Clients work directly with Miller Cooper while benefiting from industry specialists who provide regional and international insight to address priorities with a customized approach, and the firm supports work-life balance and mentorship for its staff. In 2025, Miller Cooper was recognized on INSIDE Public Accounting’s Best of the Best Firms list for a third consecutive year, reflecting external acknowledgment of its performance.

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