About Us

Dugan & Lopatka is one of the largest public accounting firms in the Chicago area, but one of the only large CPA firms to specialize almost exclusively on privately-held, small and mid-sized businesses. Dugan & Lopatka is dedicated to serving small and mid-sized, closely-held companies. Founded in 1974, we provide tax, audit, accounting and marketing services to privately-held companies and nonprofit organizations and tax and financial planning services to business owners, individuals and families.

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