For more than 30 years, the Griffing Group has provided premier valuation consulting services, expert reports and testimony, and strategy and advisory services to corporate clients, attorneys, and high net worth individuals. Our deep experience in high stakes matters gives us unique insight into complex issues involving valuation, economic damages, and M&A transactions and integration.

Learn About Our Firm

Meet Our Experts

Nationally Renowned Valuation Experts

Our Professionals

David G. Clarke, ASA
Managing Principal

Daniel R. Van Vleet, ASA
Managing Principal

Todd Antonelli
Managing Principal

William Jeffers, CFA
Managing Principal


The Griffing Group provides valuation, advisory, and expert witness services in the following primary practice areas: Disputes & Controversy, Strategic Advisory Services, and Valuation Advisory Services.



We provide our services for a variety of purposes, including M&A/Shareholder Disputes, Strategic and M&A Consulting, ESOPs & ERISA Litigation, Securities Litigation, and Taxation.

Practice Areas

law firms giffing group business valuation experts


We enjoy a long track record of successful working relationships with top attorneys from the largest and most prominent law firms in the world.

Law Firms

Key Insights

griffing group key insights

Daniel Van Vleet Featured in ABI Journal

The American Bankruptcy Institute (ABI) Journal has published Daniel Van Vleet’s article, “Bankruptcy and Business Valuation in the Current Environment”. Click below to read the full article, which provides timely insight on business valuation and solvency analyses for bankruptcy matters.

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key insights griffing group business valuation

Alternate Valuation Methods in the Era of COVID-19

In the COVID-19 environment, the mechanical application of traditional valuation methods may produce business values that lack credibility and reliability. We offer alternate valuation methods that should be considered in these turbulent times.

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key insights griffing group business valuation experts

Valuing C Corps and Pass-Through Entities Under the New Tax Law

We address the valuation implications of the Tax Cuts and Jobs Act of 2017, which contains sweeping changes to corporate and individual tax rates, deduction limitations, foreign income taxation, and the tax treatment of pass-through entities.

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