Fundraising Fox
Find your path to Chandler
10,162 people in our graph share verified history with Chandler — schools, employers, funds. One of them is your warm intro.
Dan RuchunlockedChandler: together at Y Combinator
×11Chandler: together at Y Combinator
About
Founder and CEO of River, previously a software engineer at Roboflow and co-founder of Outwork, and a participant in Z Fellows. He studied computer science at UC Berkeley before leaving.
Founder/CEO at RiverYC F26
Intro paths
YC
Chandler went through Y Combinator (Fall 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Pete Koomen, General Partner at Y Combinator — the partner who ran River's batch and knows the company first-hand. YC profile ↗
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In turn, Chandler can intro founders to River's investors below.
River's investors · 3
Co-founders at River
BJ
Brian JoseffFounder/CEO
Experience
- River (YC F26)CEO & Co-Foundercurrent2025 — present
- RoboflowFull-Stack Engineer, Enterprise Team2024 — 2025
- OutworkCEO/Co-Founder2022 — 2024
- Pierson WorkholdingSoftware Engineer2020 — 2022
- Connexion DesignEngineering Intern2018 — 2019
Frequently asked questions
- Who is Chandler Supple?
- Founder and CEO of River, previously a software engineer at Roboflow and co-founder of Outwork, and a participant in Z Fellows. He studied computer science at UC Berkeley before leaving.
- Where does Chandler Supple work?
- Chandler Supple is Founder/CEO of River.
- What companies did Chandler Supple found?
- Chandler Supple founded River.
- Where did Chandler Supple go to school?
- Chandler Supple studied at University of California, Berkeley (Bachelor's degree); Y Combinator; Z Fellows.
Founder mafias
Y Combinator mafia10,444
Also came through, then founded or led a company.
Same school
Also attended University of California, Berkeley2,000
Steve WozniakCo-founder of AppleTony XuCo-founder & CEO of DoorDashAravind SrinivasCo-founder & CEO of Perplexity AIAli GhodsiCo-founder & CEO of DatabricksAbraham BachrachCo-founder & CTO of SkydioTrevor OelschigInvestment Team at General Catalyst
+ 1,994 more
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 VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
