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Josef Feldman

Investor

Founding Partner at Ex Nihilo · Partner at Tectonic Capital

New York, New York

Writes $50K – $2M checks · typically $500K

Find your path to Josef

32 people in our graph can introduce you to Josef.

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

Ask Andrew McLaughlin to introduce you to Josef

You →Andrew · together at Assembly OSM (2019–2023) →Josef

Ask Jamie Chen to introduce you to Josef

You →Jamie · 3 people · together at Assembly OSM →Josef

Ask Sam Okafor to introduce you to Josef

You →Sam · together at Tectonic Capital →Josef

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Experience

  1. Ex NihiloFounding Partnercurrent2023 — presentNew York
  2. Renegade InsuranceFounding Investorcurrent2018 — presentNew York, United States
  3. Tectonic CapitalFounding Partnercurrent2013 — presentNew York City
  4. Terrain BiosciencesBoard Member2024 — 2026Cambridge, MA
  5. Terrain BiosciencesCofounder, CEO2023 — 2024Cambridge, Massachusetts, United States
  6. Assembly OSMCo-Founder, Board member2018 — 2025New York, United States

Skills & more

Entrepreneurship17Start-ups17Venture Capital9Computer Science2

From Josef's professional profile.

Investments

Per curated public sources.

Network1

David Wolfson
Partner at Tectonic Capital

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

Frequently asked questions

Who is Josef Feldman?
Partner at Tectonic Capital
Where does Josef Feldman work?
Josef Feldman is Founding Partner at Ex Nihilo.
What check size does Josef Feldman write?
Josef Feldman typically writes checks of $50K – $2M.
What companies has Josef Feldman invested in?
Investments tracked here include CopyCat AI, Toothy AI.
Where did Josef Feldman go to school?
Josef Feldman studied at Queens College MS in Finance (MS, Masters in Finance); Queens College (Business Administration and Management, General).

Founder mafias

Same school

Shared employers

Also worked at Renegade Insurance1

David WolfsonPartner at Tectonic Capital