Fundraising Fox

Ryan Nowicki Stewart

Founder

Founder at Pennant

San Francisco Bay Area

FoundedPennant · YC

About

Co-founder of Pennant, Ryan Nowicki Stewart previously spent over a decade in asset management, proxy voting, and shareholder activism at PJT, State Street, and BlackRock. He studied at Cornell University and was part of the Palantir Startup Fellowship's second cohort.

Founder at PennantYC S26

Intro paths

YC

Ryan went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Pennant's batch and knows the company first-hand. YC profile ↗

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In turn, Ryan can intro founders to Pennant's investors below.

Pennant's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at Pennant

TTTomas Taylor
Tomas TaylorFounder

Experience

  1. Pennant AICo-Founder, CEOcurrent2026 — presentNew York, New York, United States
  2. PJT PartnersVice President2024 — 2026New York
  3. State Street Investment ManagementAsset Stewardship2020 — 2024New York
  4. The Economic Club of New YorkFellow2023 — 2024New York, New York, United States
  5. The Council of Institutional InvestorsCorporate Governance Advisory Council2023 — 2024
  6. Cambridge Institute for Sustainability Leadership (CISL)Investment Leaders Working Group Member2022 — 2023Cambridge, England, United Kingdom
  7. BlackRockAssociate2018 — 2020Tokyo, London, New York
  8. BlackRockAnalyst2016 — 2018New York
  9. The Hoover Institution, Stanford UniversitySelected Scholar, National & Foreign Policy2017Stanford, California

Skills & more

Languages Japanese · Spanish

  • FSA Credential — SASB Standards
  • Alternative Investment Analyst Charter (CAIA Charter) Level 1 — CAIA Association
  • Japanese Language Proficiency Test: Level 5 — The Japan Foundation

From Ryan's professional profile.

Frequently asked questions

Who is Ryan Nowicki Stewart?
Co-founder of Pennant, Ryan Nowicki Stewart previously spent over a decade in asset management, proxy voting, and shareholder activism at PJT, State Street, and BlackRock. He studied at Cornell University and was part of the Palantir Startup Fellowship's second cohort.
Where does Ryan Nowicki Stewart work?
Ryan Nowicki Stewart is Founder of Pennant.
What companies did Ryan Nowicki Stewart found?
Ryan Nowicki Stewart founded Pennant.
Where did Ryan Nowicki Stewart go to school?
Ryan Nowicki Stewart studied at Y Combinator (S26); Cornell University (Bachelor of Science (B.S.)); Geneva Graduate Institute (Summer Degree in International Affairs and Multilateral Governance).

Same school

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports Ventures

+ 1,994 more

Also attended Cornell University934

Doug LeonePartner at Sequoia Capital; former Global Managing PartnerJenny LeeSenior Managing Partner at Granite AsiaNeeraj AgrawalGeneral Partner at Battery VenturesJohn ZimmerCo-founder of LyftDeepinder GoyalCo-founder & CEO of ZomatoMichelle FernandesInvestor at Index Ventures

+ 928 more

Also attended Geneva Graduate Institute15

Melissa DonohoeVice President at Notion CapitalAviral GoenkaSenior Associate, India at Jungle VenturesUlises CejaVenture Associate at Untapped VenturesIbrahim KöranHead of GovTech at Heliad AGAmir WeitmannCo-Founder, Managing Partner at Champel CapitalFabio SofiaCo-Founder and Managing Partner at Zebra Impact Ventures

+ 9 more

Also attended Alliance High School4

Brian Waswani OdhiamboPartner at Novastar VenturesJames I MwangiCo-Founder & Chief Executive Officer at Africa Climate VenturesDr. Yoni GoldwasserAngel at Springboard Health AngelsAvia Vayner ChenInvestor at fresh.fund

Shared employers

Also worked at Pennant AI2

Tomas TaylorFounder at PennantDan HurwitzCo-Founder & Chief Commercial Officer at Foxyai

Also worked at PJT Partners44

Alejandro de RemediosInvestment Associate at Burda Principal InvestmentsAnna WangAssociate at March Capital PartnersSudeep JandyamPrincipal at TCVFelipe FagundesInvestor at Riverwood CapitalAngel DuanAssociate at DFJLouis DessalSenior Associate at Partech Ventures

+ 38 more

Also worked at State Street Investment Management8

Ben TisdaleHead of Capital Formation and Investor Relations at Hivemind Capital PartnersMorgan SheilChief Climate Officer at World FundDylan HerschfieldInvestor at M33 GrowthDavid LaVallePresident of CoinDesk Data & Indices at BullishRick BunkerChief Technology and Product Officer at InveniamSusanne GrafPartner at Terreus Capital AG

+ 2 more

Also worked at The Economic Club of New York12

Nicholas AdamsManaging Partner at Differential VenturesDavid BorcsokPartner at Mucker CapitalPete MathiasFounder at Reveille VCThomas Walton-CaleManaging Director at Multiplier CapitalPriya PonnapulaVice President, Office of the CIO at Metropolitan PartnersJacob ZhaoSenior Portfolio Manager at Hashkey Capital

+ 6 more