About
Mac Grayson joined HarbourVest’s primary partnership team as an associate in 2007 and became a vice president in 2011. He is currently focused on U.S. venture, buyout, credit, and real assets investments. He is also involved with cleantech and Latin American investments. His prior experience includes three years as a financial analyst in Morgan Stanley’s Global Energy Group in New York, where he advised domestic and international energy companies on mergers and acquisitions, financings, and restructurings. Mac’s other experience includes a position with McMaster-Carr Supply Company, an internship in the Real Estate division of Quilombo Empreendimentos e Participações in Sao Paulo, Brazil, and working as a real estate project assistant with the Boston Redevelopment Authority.
Position in the VCSift Database
- • 95 investors at HarbourVest Partners are tracked.
- • 1 investors hold the Managing Director Boston role in VCSift. McComma Grayson III is one of them.
Data sourced from 410,343 investor profiles. Updated July 2026.
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