Mark Nunnelly

Mark Nunnelly is Chairman of Toolbox Holdings & Foundation, a family office in Boston with both investment and philanthropic efforts. With a focus on empowering great leaders and seeding innovation, Toolbox invests globally in hospitality, business services, and AI. Toolbox takes the same lens towards supporting social entrepreneurs with philanthropic efforts focused upon education, workforce development, medical advances, climate change, and strengthening democracy.

From 1989–2014, he was a managing director at Bain Capital, a leading global private investment firm which today manages $180 billion of assets. Mark led the firm’s private equity business and served in multiple leadership roles. He also provided strategic leadership, charting the firm’s expansion into multiple alternative asset classes and geographies. Prior to Bain Capital, Mark was a partner at Bain & Company. He also worked at Procter & Gamble in product management and he has been a serial entrepreneur.

Reflecting his commitment to public service, he was the Secretary of the Office of Technology Services and Security for the Commonwealth of Massachusetts and the Commissioner of the Department of Revenue and Special Advisor to Governor Charlie Baker for technology and innovation competitiveness. During his tenure, he led a significant modernization effort across the Commonwealth’s diverse digital and technology services platform.

Mark is an active supporter of numerous charitable organizations. He has served on the KIPP Foundation Board for nearly two decades, and has chaired the boards of Boston Medical Center, New Profit, Centre College, and Harvard Business School, while also serving on the boards of Jumpstart, Bridgespan, Brigham and Women’s Hospital, and the Broad Institute.

Mark earned an M.B.A. with distinction from Harvard Business School and a B.A. from Centre College in government and history. He is married to Denise Dupré and they have four children.