CPA · Chicago, Cook County
William J O'Brien
Licensed CPA · first issued 1996 (30 years).
✓ License current✓ Checked Oct 21, 2026✓ No discipline in IDFPR data
About this record
This page shows what IDFPR publishes about license #065024311. IDFPR data has no phone, email, website or specialties for this CPA; the licensee can add them by claiming the listing. IDFPR’s license lookup is updated daily.
More CPAs in Chicago
All 7,241 in Chicago →CPA · ChicagoMegan O'BrienLic. #065054579Since 2020Licensed · current · checked Oct 21, 2026CPA · ChicagoPatrick Gerald O'BrienLic. #065058997Since 2022Licensed · current · checked Oct 21, 2026CPA · ChicagoSean J O'BrienLic. #065058362Since 2022Licensed · current · checked Oct 21, 2026CPA · ChicagoBrigid O'CallaghanLic. #065061198Since 2024Licensed · current · checked Oct 21, 2026CPA · ChicagoBridget O'ConnellLic. #065041239Since 2013Licensed · current · checked Oct 21, 2026CPA · ChicagoDaniel G O'ConnellLic. #065022105Since 1992Licensed · current · checked Oct 21, 2026