John D. Macomber

Senior Lecturer of Business Administration

John Macomber is a Senior Lecturer in the Finance unit at Harvard Business School. His professional background includes leadership of real estate, construction, and information technology businesses. At HBS, Mr. Macomber's work focuses on the private finance and delivery of public infrastructure projects in both the developed and emerging worlds.  These include transportation, energy, water/sanitation, and real estate investments that speed economic development, reduce environmental impacts (notably air and water pollution), and facilitate individual opportunity.   His teaching combines infrastructure finance (including public-private partnerships), economic development, and urban planning as well as the impact of techologies like ubiquitous sensors, internet of things, mobile money, big data and analytics, and autonomous vehicles. 

Mr. Macomber is engaged in the Business and Environment Initiative and Social Enterprise Initiatives at HBS and is a member of the Executive Committee of the Harvard University Center for African Studies. He teaches Finance, Real Estate, Urbanization, and Entrepreneurship courses in the elective curriculum and in Executive Education.

Mr. Macomber is the former Chairman and CEO of the George B H Macomber Company, a large regional general contractor; and remains a principal in several real estate partnerships.  He serves or has served on the boards of Young Presidents Organization International (YPO), Boston Private Bank, Mount Auburn Hospital, WGBH Educational Foundation, Boys and Girls Clubs of Boston, and the Appalachian Mountain Club.

Mr. Macomber is a graduate of Dartmouth College (Mathematics in the Social Sciences) and Harvard Business School.

  1. Sustainability, Real Estate and the Built Environment

    by John D. Macomber

    Research interests include:

    • Real estate development, design, and construction, notably how design creates value; 
    • Sustainable cities, in particular entrepreneurship and project finance in light of global trends in urbanization and resource scarcity.
    • Cleantech, in particular innovations in business and technology that stretch the productivity of resources like energy, clean water, or leverage the effectiveness of capital expenditures on transit.