Jonathan Grinnon
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Jonathan Grinnon is a fractional CFO and finance and operations executive with more than 25 years of experience. He currently serves as Fractional CFO at Arena and also describes himself publicly as a Fractional CFO USA on LinkedIn. His background is in finance and operations leadership, and his LinkedIn profile lists services including budgeting, accounting, outsourcing, financial analysis, small business tax, strategic planning, financial advisory, financial reporting, financial accounting, and financial consulting. He is also identified as a CFA on his public profile.
Updated 14 September 2026
Public sources: linkedin.com
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