Varun Mathur
FounderFounder/CEO at Unisson
San Francisco, California, United States
FoundedUnisson · YC
About
Varun Mathur is co-founder and CEO of Unisson, where he has developed a visual language model for video understanding. Previously, he led product, engineering, and research efforts for agent products and vision models at Ambient.ai.
Founder/CEO at UnissonYC W26
Intro paths
Varun went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Diana Hu, General Partner at Y Combinator — the partner who ran Unisson's batch and knows the company first-hand. YC profile ↗
In turn, Varun can intro founders to Unisson's investors below.
Unisson's investors · 1
Co-founders at Unisson
Experience
- Unisson (YC W26)Co-Founder & CEOcurrent2026 — presentSan Francisco, CA
- Ambient.aiSenior Product Manager2023 — 2025Redwood City, California, United States
- Ambient.aiSenior Software Engineer2021 — 2023Palo Alto, California, United States
- Ambient.aiSoftware Engineer2020 — 2021Palo Alto, California, United States
- EPFLAI Researcher2018 — 2019Lausanne Area, Switzerland
Frequently asked questions
- Who is Varun Mathur?
- Varun Mathur is co-founder and CEO of Unisson, where he has developed a visual language model for video understanding. Previously, he led product, engineering, and research efforts for agent products and vision models at Ambient.ai.
- Where does Varun Mathur work?
- Varun Mathur is Founder/CEO of Unisson.
- What companies did Varun Mathur found?
- Varun Mathur founded Unisson.
- Where did Varun Mathur go to school?
- Varun Mathur studied at Y Combinator (Unisson (W26)); University of Illinois Urbana-Champaign (Bachelor’s Degree, Computer Science and Statistics).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
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Y Combinator mafia4,716
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University of Illinois Urbana-Champaign mafia146
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Ambient.ai mafia3
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
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Also attended University of Illinois Urbana-Champaign421
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Shared employers
Also worked at Unisson (YC W26)1
Also worked at Ambient.ai4
Also worked at EPFL57
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