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Josh Rosenthal

Former General Partner at Polychain Capital

Chicago, Illinois

Writes $500K – $5M checks · typically $2.8M

Find your path to Josh

1,637 people in our graph can introduce you to Josh.

Each arrow is one introduction. Sign up to fill in the first one.

Ask Bobby Beniers to introduce you to Josh

You →Bobby · together at Polychain Capital (2022–2024) →Josh

Ask Jamie Chen to introduce you to Josh

You →Jamie · 10 people · together at Stealth Startup →Josh

Ask Sam Okafor to introduce you to Josh

You →Sam · together at Sigma Phi Epsilon →Josh

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  • Your email: the people you already email who know Josh
  • 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Josh
  • Your LinkedIn: the connections who can make the intro for you

We rank every route by how warm it is, so you raise on warm intros instead of cold emails.

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Experience

  1. Stealth StartupCo-Founder, CEOcurrent2026 — presentChicago, IL
  2. Polychain CapitalPresident2026Chicago, IL
  3. Polychain CapitalGeneral Partner, Portfolio Manager2022 — 2026Chicago, IL
  4. Polychain CapitalResearch Strategist2021 — 2022Chicago, Illinois, United States
  5. FalconXInstitutional Coverage2021Chicago, Illinois, United States
  6. JPMorgan Chase & Co.Associate2019 — 2021
  7. Goldman SachsAnalyst2016 — 2019Greater Chicago Area
  8. Goldman SachsSummer Analyst2015Greater Chicago Area
  9. Sigma Phi EpsilonPresident2013 — 2014Minneapolis, Minnesota

Skills & more

Public Speaking25PowerPoint22Management21Risk Management15Customer Service16Microsoft Word13Sales10Leadership15Microsoft Excel10English6Portfolio Management4

From Josh's professional profile.

Network1

Ben Perszyk
Partner at Polychain Capital

Investors connected to Josh in public investor directories — a warm-intro map.

Frequently asked questions

Who is Josh Rosenthal?
General Partner at Polychain Capital
What check size does Josh Rosenthal write?
Josh Rosenthal typically writes checks of $500K – $5M.
Where did Josh Rosenthal go to school?
Josh Rosenthal studied at Northwestern University - Kellogg School of Management (Master of Business Administration - MBA); UMN Carlson School of Management (Bachelor’s Degree, Business; Finance); University of St.Gallen (Bachelor's Degree, Global Immersion).

Same school

Shared employers