Founded in Chicago in 1924, Grant Thornton LLP (Grant Thornton) is the U.S. member firm of Grant Thornton International Ltd, one of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton, which has revenues of $1.92 billion and operates more than 50 offices, works with a broad range of dynamic publicly and privately held companies, government agencies, financial institutions, and civic and religious organizations.

Accounting

Grant Thornton US

Seth Siegel

Jason Perry

Jim Wittmer

Sanjiv Kumar

Alasdair Trotter

Mark A. Margulies

Meredith Vogel

Muhammad Bhayat

Jeanna Shapiro

Omri Avdi

Janet Malzone

Beatrix Bernauer

Rashada Whitehead

Wade Kruse

Kenneth R. Cunningham

Greg Westfall

Jim Peko

The Leadership Team at Grant Thornton US is responsible for setting strategic direction and ensuring the firm’s operational efficiency and growth. Composed of senior executives across various domains, including audit, tax, risk management, and people operations, this team focuses on enhancing service quality, fostering a strong organizational culture, and driving innovative solutions to meet clients' needs. Their collaborative approach aims to maintain Grant Thornton’s position as a leading independent audit, tax, and advisory firm while navigating industry challenges and opportunities.

Leadership Team

Audit and Tax Services

Leadership Team

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Audit and Tax Services

Leadership Team