Brian P. Sullivan, CPA

Partner, Elgin


Brian leads our Audit Department and sits on our leadership Executive Committee.  In addition, he previously led our Manufacturing & Distribution Service Group and presently serves as lead advisor. His leadership skills coupled with his strong and strategic management style is highly valued in guiding our professional staff and specifically valued by our clients during advisory, audit management, and review engagements.

Brian’s service focus includes audit, assurance, mergers and acquisitions; including due diligence engagements, quality of earnings reporting, Sarbanes-Oxley Compliance, internal control analysis, accounting, tax planning, and business management strategic planning for U.S. and international clients. He has extensive knowledge of International Financial Reporting Standards (IFRS), including conversions between IFRS and U.S. GAAP.

His experience and expertise is within the manufacturing, wholesale distribution, construction, real estate, technology, and service industries. His wide range of clients includes small family owned, mid-market, and publicly held companies.

Brian has provided testimony on various legal matters.

Education & Certifications

  • B.S., Accounting, Elmhurst College, Elmhurst, IL
  • Certified Public Accountant, University of Illinois
  • Licensed Certified Public Accountant, Illinois
  • Series 66 Exam, 2017
  • Illinois Life Insurance License, 2017

Professional, Civic, & Charitable Organizations

  • American Institute of Certified Public Accountants (AICPA)
  • Illinois CPA Society (ICPAS)
  • Elgin Cosmopolitan Club, Board Member
  • CPAmerica International, 2016 Accounting and Auditing Conference, Chair


  • “Employee Fraud and Theft on the Rise, but Continuous Monitoring Can Help Prevent Losses” – Business Ledger, 2014