Fundraising Fox

Jeffrey Yum

Founder

Founder at Pollen

Los Angeles Metropolitan Area

FoundedPollen · YC

About

Jeffrey Yum studied electrical engineering and computer science at UC Berkeley. He previously worked at Lawrence Livermore National Laboratory on data archival systems, and is now co-founder and COO of Pollen, where he develops AI agents for customer success automation.

Founder at PollenYC W26

Intro paths

YC

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

GP

Their group partner at YC was Jon Xu, General Partner at Y Combinator — the partner who ran Pollen's batch and knows the company first-hand. YC profile ↗

→

In turn, Jeffrey can intro founders to Pollen's investors below.

Pollen's investors · 3

NorthzoneLondon · $1M – $50M checksXYZ Venture CapitalSan Francisco · $10K – $5M checksY CombinatorSan Francisco · $500K checks · since 2026

Co-founders at Pollen

NYNoah Yin
Noah YinFounder
AOAldrin Ong
Aldrin OngFounder

Experience

  1. PollenCo-Founder & COOcurrent2025 — presentSan Francisco, California, United States
  2. University of California, BerkeleyCS 61B Teaching Assistant2024 — 2025Berkeley, California, United States
  3. University of California, BerkeleyCS 61B Tutor2024Berkeley, California, United States
  4. University of California, BerkeleyCS 61A Academic Intern2023
  5. MDBVP of Internal Affairs2024 — 2025
  6. MDBiOS Mentor2022 — 2023Berkeley, California, United States
  7. MDBiOS Developer2022Berkeley, California, United States
  8. Lawrence Livermore National LaboratorySoftware Engineer Intern2023Livermore, California, United States
  9. Keck Medicine of USCCancer Research & Software Engineer Intern2021Los Angeles, California, United States
  10. City of TorranceTorrance Youth Council Representative2020 — 2021Torrance, California, United States

Skills & more

Python (Programming Language)2HTML1Microsoft Excel1Microsoft Word1Leadership3Teamwork1Management1Computer Science4Laboratory Skills1Student Leadership1Teaching1Fundraising1
+8 moreVolunteer ManagementCustomer ServiceCommunity ServiceSocial MediaEngineeringVirtual EventsProject ManagementEvent Management

From Jeffrey's professional profile.

Frequently asked questions

Who is Jeffrey Yum?
Jeffrey Yum studied electrical engineering and computer science at UC Berkeley. He previously worked at Lawrence Livermore National Laboratory on data archival systems, and is now co-founder and COO of Pollen, where he develops AI agents for customer success automation.
Where does Jeffrey Yum work?
Jeffrey Yum is Founder of Pollen.
What companies did Jeffrey Yum found?
Jeffrey Yum founded Pollen.
Where did Jeffrey Yum go to school?
Jeffrey Yum studied at Y Combinator (W26); University of California, Berkeley (Bachelor of Science - BS, Electrical Engineering and Computer Sciences); West High School (High School Diploma).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1

+ 8,766 more

Y Combinator mafia4,716

Also came through, then founded or led a company.

Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3

+ 4,709 more

University of California, Berkeley mafia538

Also came through, then founded or led a company.

Steve WozniakBSFounded AppleTony XuB.S.Founded DoorDashAravind SrinivasDoctor of Philosophy - PhDFounded PerplexityAli GhodsiPost-docFounded DatabricksRyan PetersenBAFounded FlexportDavid FriedbergBAFounded Climate +2

+ 531 more

West High School mafia2

Also came through, then founded or led a company.

Frank LiHigh School DiplomaFounded Praxim

Same school

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital

+ 1,994 more

Also attended University of California, Berkeley1,453

Byron DeeterPartner at Bessemer Venture PartnersSteve WozniakCo-founder of AppleTony XuCo-founder & CEO of DoorDashAravind SrinivasCo-founder & CEO of Perplexity AIAli GhodsiCo-founder & CEO of DatabricksRyan PetersenFounder & CEO of Flexport

+ 1,447 more

Also attended West High School3

Carlos SucuzhanayIT Manager at Cross Creek AdvisorsNick WallerInvestor at Enzo VenturesFrank LiFounder at Praxim

Shared employers

Also worked at Pollen2

Noah YinFounder at PollenAldrin OngFounder at Pollen

Also worked at University of California, Berkeley310

Ali GhodsiCo-founder & CEO of DatabricksRaquel UrtasunFounder & CEO of WaabiPaul JennyBoard Chair at CincyTechAndrea van ElsasInvestor at Third Rock VenturesMichael PerezDeputy General Counsel at Mucker CapitalFreada Kapor KleinFounding Partner at Kapor Capital

+ 304 more

Also worked at MDB4

Akkshay KhoslaaFounder at Asha HealthAayush TyagiFounder at OkiNoah YinFounder at PollenAldrin OngFounder at Pollen

Also worked at Lawrence Livermore National Laboratory19

Martin CasadoGeneral Partner at Andreessen HorowitzAndrew WilliamsonManaging Partner at Cambridge Innovation CapitalRick LewisGeneral Partner at US Venture PartnersAlexander FangManaging Partner at Entrada VenturesKaren Roter DavisManaging Partner at Entrada VenturesAaron SistoPartner at First Spark Ventures, Llc

+ 13 more