Sébastien Chleq
InvestorFounderPartner at One Peak · Directeur d'Investissements at 123Venture · Co-Founder & President at DiligenceSquared
FoundedDiligenceSquared · YC
Find your path to Sébastien
94 people in our graph share verified history with Sébastien — schools, employers, funds. One of them is your warm intro.
About
Investment director within the real estate team at 123 IM.
Co-Founder & President at DiligenceSquaredYC F25
Intro paths
Sébastien went through Y Combinator (Fall 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran DiligenceSquared's batch and knows the company first-hand. YC profile ↗
In turn, Sébastien can intro founders to DiligenceSquared's investors below.
DiligenceSquared's investors · 1
Co-founders at DiligenceSquared
Colleagues at One Peak
Frequently asked questions
- Who is Sébastien Chleq?
- Investment director within the real estate team at 123 IM.
- Where does Sébastien Chleq work?
- Sébastien Chleq is Co-Founder & President of DiligenceSquared and Partner at One Peak.
- What companies did Sébastien Chleq found?
- Sébastien Chleq founded DiligenceSquared.
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
+ 10,223 more
One Peak mafia3
Also came through, then founded or led a company.
