Brian Vazzana

Brian Vazzana

Information Systems Assurance Partner


BDO Chicago Office



Executive Summary

Brian serves in both information technology and financial audit capacities at BDO, managing the central region Information Systems (IS) Assurance practice as well as the Third Party Attestation practice in the firm’s Chicago office.

As part of his IS Assurance role, Brian reviews client accounting systems and controls, identifying weaknesses and providing recommendations for remediation. He has led several projects specifically regarding internal controls, including Statement on Standards for Attestation Engagements (SSAE) 18 (SOC 1 and SOC 2) and International Standard on Assurance Engagements (ISAE) 3402 reporting; Sarbanes-Oxley (SOX) 404 compliance testing; and information technology general control reviews. Brian has also authored multiple thought leadership articles related to internal controls that can be found in such publications as Pennsylvania CPA Journal, ISACA Journal, and INSIGHT Magazine.

Brian’s experience additionally includes managing financial statement audits for public and private companies in the technology, software, and manufacturing and distribution industries.

Professional Affiliations

American Institute of Certified Public Accountants
Illinois CPA Society (ICPAS)
Information Systems Audit and Control Association (ISACA)
Pennsylvania Institute of Certified Public Accountants (PICPA)


B.S., Accounting and Finance, DePaul University