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Sam Mar

Vice President, Office of the Co-Chairs

Headshot of Sam Mar
Todd Spoth

Sam develops and executes advocacy strategies that support Arnold Ventures' policy goals.

Before the formation of Arnold Ventures, Sam was the CEO of Action Now Initiative, a political advocacy organization founded by Laura and John Arnold. Prior to entering the field of philanthropy, he was a senior associate at Polus Capital, a technology investment firm, where he helped manage investment deals, conducted research and analysis, and oversaw business development. He has also held various positions globally in banking, private equity, and product innovation.

Sam holds a master’s of business administration from IE Business School and a bachelor’s in marketing from the University of Texas.

Headshot of Sam Mar
Todd Spoth
Meet the Team



Arnold Ventures funds projects to understand problems and identify policy solutions.

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