McComma Grayson - harbourvest
The HarbourVest Boston Team

McComma Grayson III

Managing Director


About McComma

Mac Grayson joined HarbourVest’s primary partnership team in 2007 and focuses on US venture, buyout, and real assets investments. He is also involved with cleantech and Latin American investments. Mac holds a seat on both the ESG and D&I Councils.

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 with a family office in San Paulo, Brazil, and working as a real estate project assistant with the Boston Redevelopment Authority.

He received a BA (cum laude) in Government from Harvard College in 2000 and an MBA from Harvard Business School in 2007.