# Justine Lee

> Justine Lee is a startup investor at 25madison (New York). See 0 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: [25madison](https://shizune.co/investors/profile/25madison)
- Location: New York, United States
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/justine-lee-1063b782/

Justine Lee is a startup investor at 25madison in New York. Justine Lee is Chief Operating Officer at 25madison, an NYC-based venture studio that builds and invests in early stage companies. Prior to 25madison, Justine held leadership positions at Lyft (micromobility) and at Citibike, the country's largest bikeshare operator. She serves on the board of directors of Harbor (emergency preparedness andresiliency), Ruby (elder services) and Friends of Governors Island. Justine received her B.A. from Yale University and her J.D. from Columbia Law School.

## Contacts

5 contacts available for Justine Lee: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/justine-lee-2?utm_source=investor_profile

## About 25madison

VC Fund · New York, United States

25madison is an early-stage venture platform: working with entrepreneurs to build companies from the ground up and investing in pre-seed to series A startups. The platform is comprised of 4 segments: (i) General studio: Builds companies across verticals (ii) 25m health: Builds and invests in healthtech startups in partnership with LifePointHealth (iii) Ventures fund: Invests in pre-seed to series A startups focused on B2B SaaS, fintech, and healthtech (iv) 25m create: Brand and experience agency with services including brand strategy, visual identity, experience design, and web & digital marketing

5 contacts available at 25madison.

| Name | Title | Profile |
| --- | --- | --- |
| Gary Ginsberg | Co-Founder | https://shizune.co/investors/profile/gary-ginsberg |
| Grant Silow | Managing Director | — |
| Justine Lee | Chief Operating Officer | — |
| Kirk Posmantur | Co-Founder and CMO | https://shizune.co/investors/profile/kirk-posmantur |
| Lance West | Co-Founder | — |

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