Jonathan Leff is a Partner on the Therapeutics team at Deerfield and Chairman of the Deerfield Institute, and joined the Firm in 2013. He focuses on venture capital and structured investments in biotechnology and pharmaceuticals. Prior to Deerfield, for more than sixteen years, Mr. Leff was with Warburg Pincus, where he led the firm’s investment efforts in biotechnology and pharmaceuticals. He is a member of the Boards of several public and private healthcare companies as well as several not-for-profit organizations, including the Spinal Muscular Atrophy Foundation and the Columbia University Medical Center Board of Advisors, and has previously served as a director of the Reagan-Udall Foundation for the Food and Drug Administration. Mr. Leff has also been active in public policy discussions related to healthcare and medical innovation. He previously served as a member of the Executive Committee of the Board of the National Venture Capital Association (NVCA), where he led NVCA’s life sciences industry efforts as Chair of NVCA’s Medical Innovation and Competitiveness Coalition (NVCA-MedIC), and also previously served on the Board of the Biotechnology Innovation Organization. Mr. Leff holds an A.B. from Harvard University, an M.B.A. from Stanford University’s Graduate School of Business, and an M.S. in Biotechnology from Johns Hopkins University.
Launched in 1994, Deerfield Management Company is an investment firm dedicated to advancing healthcare through information, investment, and philanthropy—all toward the end goal of cures for disease, improved quality of life, and reduced cost of care.
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Investment
Supporting companies across the healthcare ecosystem with flexible funding models…
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Deerfield Management and the University of North Carolina Eshelman School of Pharmacy Launch Biotherapeutics Certificate Program Bridging Academia and Industry Deerfield Management Launches Joint Venture with Horizon Blue Cross Blue Shield of New Jersey Elion Therapeutics Closes $81 Million Series B Funding Round Led by Deerfield Management and AMR Action Fund
Portfolio Companies
Deerfield generally maintains a combined portfolio of more than 150 private and public investments across the life science, medical device, diagnostic, digital health and health service industries at all stages of evolution from start-up to mature company.
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Research Collaborations
Deerfield partners with leading academic research centers, providing critical funding and expertise to further sustain and accelerate the commercialization of discoveries toward meaningful societal impact by advancing cures for disease.
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Strategic Partners
As a strategic partner, Deerfield offers capital, scientific expertise, business operating support, and unique access to innovation.
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Deerfield Foundation
The Deerfield Foundation is a New York City-based not-for-profit organization whose mission is to improve health, accelerate innovation and promote human equity.
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Children's Health Diversity Initiatives Maternal Health View AllFounded Diversity Programs
Break into the Boardroom Fellowships Science to the Street (formerly Women in Science)
Cure Campus
Cure is a 12-story innovation campus in New York City that intends to bring together innovators from academia, government, industry, and the not-for-profit sectors to advance human health and accelerate the fight against disease.
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Cure has a series of expert lectures intended to advance thought in healthcare, management, innovation, policy, and other relevant subjects. This fosters growth and education for those at Cure and its guests.
Events at the Cure