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Harry Callahan

Headshot Image for Harry Callahan


Bryan is an assistant managing partner with the Forensics & Valuation service line. He focuses on providing litigation consulting, fraud investigation, and forensic accounting services related to calculations of breach of contract damages, lost business value, intellectual property claims, shareholder disputes, post-acquisition disputes, construction claims, misappropriation of assets, fidelity bond claims, and fraudulent financial reporting.

He has performed litigation and investigation services for companies in a variety of industries, including multiple Fortune 500 companies. He has testified as an expert witness both in court and through depositions. Bryan has also served as a neutral party in numerous post‐acquisition disputes.

Prior to working for Forvis Mazars in Forensics & Valuation, Bryan worked in corporate forecasting, planning, and analysis for a $370 million private equity‐owned biotechnology company, where he led the companywide annual operating plan, forecasting, and reporting processes. He also was responsible for external and board financial materials, decision support, and competitive analysis. Before that, he worked as an auditor at an international accounting firm.

In addition to being a CPA, he holds the Certified in Financial Forensics (CFF) certification from the American Institute of CPAs (AICPA) and is a Certified Valuation Analyst (CVA) and Certified Fraud Examiner (CFE). He participates in more than 50 hours of continuing education each year and has attended numerous valuation, litigation services, damages, and fraud courses offered by AICPA and Association of Certified Fraud Examiners.

Bryan is a summa cum laude graduate of Valparaiso University, Indiana, with a B.S. degree in business administration with concentrations in accounting and management.

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