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Jonathan Leff Email & Contact Information

Partner @ Deerfield Management

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Jonathan Leff Location

New York, United States

Jonathan Leff Investing

Partner at Deerfield Management

Stages
Series A
Sectors
Health tech
Cheque size
€9.2M–€46M
Freshness
Verified 1mo ago

Jonathan Leff Summary

Jonathan Leff, based in New York, United States, is a Partner at Deerfield Management. Jonathan Leff invests in Health tech at Series A, writing €9.2M–€46M cheques. Jonathan Leff's verified email and contact details are available on Mintround.

How to cold email Jonathan Leff

Jonathan Leff, Deerfield Management in New York, United States, backs Health tech companies at Series A, writing €9.2M–€46M cheques. Here's how to get a reply when you cold email Jonathan:

  • Subject line: name your company and one metric that matters to Health tech, not “quick chat”.
  • First line: your strongest traction, the real numbers, not adjectives.
  • One ask: a 20-minute call with a date range. Keep it under 150 words.
  • Send it to Jonathan's verified address below. No warm intro required.
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Notable investments

Frequently co-invests with

Carole NuechterleinF.Hoffmann-La RocheEd Mathers (New Enterprise Associates (NEA))Jonathan Root (U.S. Venture Partners (USVP))Jonathan SilversteinOrbiMedKush Parmar5am VenturesMartin HeideckerAMR Action FundNiall O’DonnellRiverVestPatrick HeronFrazier Healthcare PartnersStephen SquintoOrbiMedTom WoiwodeVersant Ventures

Jonathan Leff's colleagues at Deerfield Management

Crystal WrightAssociate, Deerfield Management
Eddie YangAnalyst, Deerfield Management
Gilan MegeedPrincipal, Deerfield Management
Howard FurstPartner, Deerfield Management
Jackson HarveyAnalyst, Deerfield Management
Brian BizozaPartner, Deerfield Management
Alison StamasAssociate, Deerfield Management
Steven HochbergPartner, Deerfield Management
Narendra NayakPartner, Deerfield Management
James FlynnManaging Partner, Deerfield Management
Steve AnastosPrincipal, Deerfield Management
Bharath GanesanPrincipal, Deerfield Management
Andrew ElBardissiPartner, Deerfield Management
Cameron WheelerPartner, Deerfield Management
Julian HarrisPartner, Deerfield Management
Leslie HenshawPartner, Deerfield Management
Adam GreenePartner, Deerfield Management
Adam GrossmanPartner, Deerfield Management
Jason FullerPartner, Deerfield Management
Abraham KometzPartner, Deerfield Management
See all 21 at Deerfield Management →

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Dimi BarotPartner, Wavemaker Three-Sixty Health
John PrufetaGeneral Partner, Medical Excellence Capital, LLC
William QuistPartner, Slow Ventures

Related lists

Health tech investorsSeries A Health tech in United States

Frequently asked questions

How do I contact Jonathan Leff?
Jonathan Leff, Partner at Deerfield Management, can be reached by email. The verified email address is listed on this page.
What is Jonathan Leff's email address?
Jonathan Leff's email address uses the deerfield.com domain (shown as *****@deerfield.com until revealed).
What does Jonathan Leff invest in?
Jonathan Leff backs Health tech companies at Series A, typically writing €9.2M–€46M cheques.
How do I cold email Jonathan Leff?
Jonathan Leff backs Health tech companies at Series A, writing €9.2M–€46M cheques. A concise cold email that leads with relevant traction and one specific ask, sent to the verified address on this page, is the most direct way to reach Jonathan.
Where is Jonathan Leff based?
Jonathan Leff is based in New York, United States and works at Deerfield Management.

Every contact is a verified, deliverable email. How Mintround verifies contacts.

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