Joe Connolly
InvestorFounderVenture Partner at Pioneer · Founder at Sketchbox
San Francisco Bay Area
Writes $200K – $300K checks · typically $250K
FoundedSketchbox · YC
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You →Garry · together at YC W18 (2018) →Joe
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You →Jamie · 11 people · together at YC W18 →Joe
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Founder at SketchboxYC W18
Intro paths
Joe went through Y Combinator (Winter 2018) — any YC alum in your network can reach them through the YC community.
In turn, Joe can intro founders to Sketchbox's investors below.
Sketchbox's investors · 9
Co-founders at Sketchbox

Colleagues at Pioneer
Frequently asked questions
- Who is Joe Connolly?
- Venture Partner at Pioneer
- Where does Joe Connolly work?
- Joe Connolly is Founder of Sketchbox and Venture Partner at Pioneer.
- What check size does Joe Connolly write?
- Joe Connolly typically writes checks of $200K – $300K.
- What companies did Joe Connolly found?
- Joe Connolly founded Sketchbox.
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.




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