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Joseph Tso

Founder

Founder at Haladir

United States

FoundedHaladir · YC

Find your path to Joseph

26 people in our graph share verified history with Joseph — schools, employers, funds. One of them is your warm intro.

Kurt SchererunlockedJoseph: together at George Mason University (2022–2025)
×11Joseph: together at George Mason University

About

Joseph Tso is a computer science graduate from Princeton and co-founder of Haladir.

Founder at HaladirYC W26

Intro paths

YC

Joseph 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 Diana Hu, General Partner at Y Combinator — the partner who ran Haladir's batch and knows the company first-hand. YC profile ↗

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In turn, Joseph can intro founders to Haladir's investors below.

Haladir's investors · 6

BoxGroupNew York · $1M checks · since 2026Susa VenturesSan Francisco · $1M – $5M checks · since 2026SV AngelSan Francisco · since 2026Valkyrie Ventures Management, LlcPark City · since 2026XPRESS VenturesBerlin · since 2026Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at Haladir

JHJibran Hutchins
Jibran HutchinsCo-founder & CEO
QHQuan Huynh
Quan HuynhFounder
PSPreston Schmittou
Preston SchmittouFounder

Experience

  1. Haladir (YC W26)Co-Foundercurrent2025 — presentSan Francisco, California, United States
  2. KnotIntern2025New York City Metropolitan Area
  3. George Mason UniversityResearcher2022 — 2025Fairfax County, Virginia, United States

Frequently asked questions

Who is Joseph Tso?
Joseph Tso is a computer science graduate from Princeton and co-founder of Haladir.
Where does Joseph Tso work?
Joseph Tso is Founder of Haladir.
What companies did Joseph Tso found?
Joseph Tso founded Haladir.
Where did Joseph Tso go to school?
Joseph Tso studied at Princeton University.

Founder mafias

Same school

Shared employers