Nielsen joins CohnReznick as Valuation Services Managing Director

CohnReznick adds Nielsen to oversee Complex Financial Instruments valuations.

New York, NY – August 19, 2025 – CohnReznick, a leading professional services firm, today announced the appointment of James Nielsen(Opens a new window)(Opens a new window) as Managing Director in its rapidly expanding Valuation Advisory Services practice. Specializing in complex financial instruments, Nielsen will focus on strengthening the firm’s capabilities across private equity, private credit, and structured financial products – areas of increasing demand in today’s evolving capital markets.

With more than 20 years of experience, Nielsen has advised private equity sponsors, credit managers, hedge funds, banks, and insurers on portfolio mark-to-market, senior and subordinated debt, convertible instruments, non-performing loans, and structured products such as CLOs, ABS, and MBS. His expertise spans valuation for M&A transactions, financial reporting and regulatory compliance, and helping to ensure accuracy, transparency, and alignment with industry standards. In his new role, Nielsen will lead a dedicated team serving private capital and structured finance clients nationwide.

“CohnReznick is focused on delivering high-impact valuation services that meet the evolving needs of financial institutions and investors,” said Brad Hirsch, Partner and Valuation Advisory Services Practice Leader. “James’s track record in private capital markets and structured products will help our clients navigate complexity with confidence, while fueling the continued growth of our valuation practice.”

Prior to joining CohnReznick, Nielsen served as a director in the Valuation and Business Modeling Services group at a Big Four firm. He holds a Masters in Accounting and a B.S. in Finance from Indiana University.

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