Oksana Westerbeke
Grant Thornton
Oksana is a Principal in Grant Thornton's Transaction Services practice. She is also a leader of the firm's National Complex Financial Instruments Group. Prior to joining Grant Thornton, Oksana spent over 10 years working with a Big 4 public accounting firm.Oksana has been working in finance for more than 20 years and has worked with numerous public and private clients on financial reporting, tax, and strategic planning.


Oksana assists clients in identifying, quantifying, and managing risk. She specializes in the valuation of privately held equity securities, debt and embedded derivatives, earnouts, contingent assets and liabilities, performance and market condition options, and other complex financial instruments. She also assists clients in the valuation of business enterprise and intangible assets.

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