Apple Tree Partners
Overview
Apple Tree Partners (ATP) is a leader in life sciences venture capital, with a 25-year track record of translating emerging scientific advances into novel innovative treatments. ATP creates companies starting at various stages: from working with scientists on pre-IP ideas, to spinouts from existing company pipelines. We provide flexible capital, strategic insight, and operational resources to build sustainable, research-driven enterprises. We invest in our companies from seed stage through IPO and beyond, and we support our management teams in strategic transactions and synergistic business combinations.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Northvolt | Aug 2023 | Convertible Debt | Co-investor |
| Sensigent | Mar 2004 | M&A | Co-investor |
| Nine Square Therapeutics | Jul 2020 | Series A | Lead |
| Nereid Therapeutics | Nov 2020 | Series A | Lead |
| Galvanize Therapeutics | Sep 2025 | Series C | Co-investor |
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Key People
Andrew Bayliffe
Venture Partner
Mark Mitchnick
Venture Partner
Paul Eisenberg
Venture Partner
Aileen Salares
Principal
Stephanie Maiocco
Principal Scientist
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Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is Apple Tree Partners based?
Apple Tree Partners is headquartered in New York City, New York, United States.
When was Apple Tree Partners founded?
Apple Tree Partners was founded in 1999.
How many portfolio companies does Apple Tree Partners have?
Apple Tree Partners has 20 portfolio companies in Caplight's dataset.
What are some companies in Apple Tree Partners's portfolio?
Portfolio companies visible on Caplight include Northvolt, Sensigent, Nine Square Therapeutics, Nereid Therapeutics, Galvanize Therapeutics.
What was Apple Tree Partners's most recent investment shown here?
Apple Tree Partners's most recent investment in this portfolio sample was in Galvanize Therapeutics in 2025.
What sectors does Apple Tree Partners focus on?
Apple Tree Partners focuses on Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Energy & Sustainability, Healthcare & Life Sciences, Frontier & Industrial Tech, Frontier & Industrial Tech, Energy & Sustainability, Frontier & Industrial Tech, Mobility, Transportation & Logistics, Healthcare & Life Sciences, AI, Data & Cloud Infrastructure, Frontier & Industrial Tech.
What company stages does Apple Tree Partners focus on?
Apple Tree Partners typically invests at the Early stage.
What is Apple Tree Partners's AUM?
Apple Tree Partners's assets under management are estimated between $1.0B and $10.0B.