Dugan + Lopatka CPAs is a full-service Public Accounting Firm in Chicagoland, specializing in middle-market, private companies and nonprofit organizations. For nearly 50 years, our team of experts has brought together a wide range of skills, technologies and expertise to help our clients navigate their challenges and accomplish their goals.

While our work is tailored to the individual needs of each client, our core services are accounting and advisory, auditing, tax compliance & planning, outsourced accounting, and mergers & acquisitions.

D+L is headquartered in Warrenville, Illinois and serves clients throughout the Chicagoland region and beyond. Some of our service areas include (but are not limited to):

  • Addison
  • Arlington Heights
  • Aurora
  • Bartlett
  • Batavia
  • Bloomingdale
  • Bolingbrook
  • Burr Ridge
  • Carol Stream
  • Chicago
  • Downers Grove
  • DuPage County
  • Elgin
  • Elk Grove Village
  • Elmhurst
  • Geneva
  • Glen Ellyn
  • Itasca
  • Joliet
  • Lisle
  • Lombard
  • Naperville
  • Oak Brook
  • Oakbrook Terrace
  • Oswego
  • Plainfield
  • Rolling Meadows
  • Schaumburg
  • St. Charles
  • Villa Park
  • Warrenville
  • West Chicago
  • Westmont
  • Wheaton
  • Winfield
  • Woodridge

To learn more about Dugan + Lopatka, contact us.