Stefan Seltz-Axmacher
InvestorFounderVenture Partner at Pioneer · Founder at Polymath Robotics
San Francisco, California
Writes $200K – $300K checks · typically $250K
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Ask Garry Tan to introduce you to Stefan
You →Garry · together at YC S22 (2022) →Stefan
Ask Jamie Chen to introduce you to Stefan
You →Jamie · 2 people · together at YC S16 →Stefan
Ask Sam Okafor to introduce you to Stefan
You →Sam · 9 people · together at YC S22 →Stefan
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Founder at Polymath RoboticsYC S22
Intro paths
Stefan went through Y Combinator (Summer 2022) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Gustaf Alstromer, General Partner at Y Combinator — the partner who ran Polymath Robotics's batch and knows the company first-hand. YC profile ↗
In turn, Stefan can intro founders to Polymath Robotics's investors below.
Polymath Robotics's investors · 17
Co-founders at Polymath Robotics

Colleagues at Pioneer
Frequently asked questions
- Who is Stefan Seltz-Axmacher?
- Venture Partner at Pioneer
- Where does Stefan Seltz-Axmacher work?
- Stefan Seltz-Axmacher is Founder of Polymath Robotics and Venture Partner at Pioneer.
- What check size does Stefan Seltz-Axmacher write?
- Stefan Seltz-Axmacher typically writes checks of $200K – $300K.
- What companies did Stefan Seltz-Axmacher found?
- Stefan Seltz-Axmacher founded Polymath Robotics, Starsky Robotics.
Founder mafias
Y Combinator mafia10,619
Also came through, then founded or led a company.
Pioneer mafia78
Also came through, then founded or led a company.
Starsky Robotics mafia5
Also came through, then founded or led a company.
Polymath Robotics mafia2
Also came through, then founded or led a company.





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