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About
Sebastian Crossa is a founding engineer who has worked at Micro, an email infrastructure company backed by a16z, and Atrato Pago (W21), a fintech startup. He co-founded LLM Stats.
Founder at LLM StatsYC S25
Intro paths
Sebastian went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Jon Xu, General Partner at Y Combinator — the partner who ran LLM Stats's batch and knows the company first-hand. YC profile ↗
In turn, Sebastian can intro founders to LLM Stats's investors below.
LLM Stats's investors · 3
Co-founders at LLM Stats
Frequently asked questions
- Who is Sebastian Crossa?
- Sebastian Crossa is a founding engineer who has worked at Micro, an email infrastructure company backed by a16z, and Atrato Pago (W21), a fintech startup. He co-founded LLM Stats.
- Where does Sebastian Crossa work?
- Sebastian Crossa is Founder of LLM Stats.
- What companies did Sebastian Crossa found?
- Sebastian Crossa founded LLM Stats.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Tecnológico de Monterrey mafia156
Also came through, then founded or led a company.
Launch House mafia7
Also came through, then founded or led a company.
Atrato mafia5
Also came through, then founded or led a company.
About this profile. Compiled from public sources — LLM Stats's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights