About Deerfield

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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Supporting companies across the healthcare ecosystem with flexible funding models…

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Delivering market research to the Deerfield team, its portfolio companies and other partners.

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A New York City-based not-for-profit devoted to advancing innovative health care initiatives.

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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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Cure Campus

Cure is a 12-story innovations 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 Programming

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

Deerfield Management Announces Appointment of Jonathan S. Leff as Partner and Chairman of the Deerfield Institute

December 03, 2012 04:50 PM Eastern Time

NEW YORK–(BUSINESS WIRE)–Deerfield Management is pleased to announce that Jonathan S. Leff will be joining the firm as of January 1, 2013 as a Partner of Deerfield Management and Chairman of the Deerfield Institute. Jonathan joins Deerfield after spending more than 16 years with Warburg Pincus, where he was a Managing Director and led the firm’s investment effort in biotechnology and pharmaceuticals. 

As part of the Deerfield investment team, Jonathan will participate in all aspects of the firm’s investment activities, with a particular focus on expanding and enhancing the firm’s ability to meet the financing needs of private healthcare companies. As Chairman of the Deerfield Institute, Jonathan will work with more than 20 professionals dedicated to analyzing data and developing reliable, unbiased knowledge about medical products and healthcare markets around the globe. In this capacity, he will seek to leverage the Institute’s unique information platform into the public policy arena, establishing the Institute as a provider of value-added insight and thought-leadership designed to inform public policy and advance innovation in healthcare. 

Jonathan will continue to serve as a member of the Executive Committee of the Board of the National Venture Capital Association (“NVCA”), as Chair of NVCA’s Medical Innovation and Competitiveness Coalition, and as a member of the Emerging Companies Section Board of the Biotechnology Industry Organization. He will also remain active with several not-for-profit organizations as a member of the Boards of Friends of Cancer Research, the Spinal Muscular Atrophy Foundation and the Board of Advisors of Columbia University Medical Center. 

Prior to Warburg Pincus, Jonathan was a consultant at Oliver Wyman & Co. He received an A.B. in Government from Harvard University and an M.B.A. from Stanford University. 

“Deerfield is committed to advancing healthcare through investment, information and philanthropy,” said James E. Flynn, General Partner of Deerfield Management. “Jonathan brings deep expertise in providing growth capital to private and public healthcare companies and an unwavering commitment to promoting an environment that supports innovation in healthcare. We look forward to the many ways in which he will contribute leadership to our mission of advancing healthcare when here at Deerfield.” 

For more information about Deerfield Management, please visit us at Contacts

Deerfield Management
Karen Arnone, 212-551-1600