Steli Efti
InvestorFounderVenture Partner at Pioneer · Founder at Close
New York, New York
Writes $200K – $300K checks · typically $250K
FoundedClose · YC
Find your path to Steli
10,466 people in our graph can introduce you to Steli.
Each arrow is one introduction. Sign up to fill in the first one.
Ask Garry Tan to introduce you to Steli
You →Garry · together at YC W11 (2011) →Steli
Ask Jamie Chen to introduce you to Steli
You →Jamie · 9 people · together at YC W11 →Steli
Ask Sam Okafor to introduce you to Steli
You →Sam · 2 people · together at Y Combinator →Steli
Sign up to find every way you can get introduced to Steli
- Your email: the people you already email who know Steli
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Steli
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
Founder at CloseYC W11
Intro paths
Steli went through Y Combinator (Winter 2011) — any YC alum in your network can reach them through the YC community.
In turn, Steli can intro founders to Close's investors below.
Close's investors · 1
Co-founders at Close
Colleagues at Pioneer
Frequently asked questions
- Who is Steli Efti?
- Venture Partner at Pioneer
- Where does Steli Efti work?
- Steli Efti is Founder of Close and Venture Partner at Pioneer.
- What check size does Steli Efti write?
- Steli Efti typically writes checks of $200K – $300K.
- What companies did Steli Efti found?
- Steli Efti founded Close.
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.






