Fundraising Fox
Sébastien Chleq
InvestorFounderPartner at One Peak · Directeur d'Investissements at 123Venture · Founder at DiligenceSquared
FoundedDiligenceSquared · YC
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10,496 people in our graph can introduce you to Sébastien.
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Ask Sümeyye Ağaç to introduce you to Sébastien
You →Sümeyye · together at One Peak (2014–2026) →Sébastien
Ask Jamie Chen to introduce you to Sébastien
You →Jamie · 11 people · together at YC F25 →Sébastien
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About
Investment director within the real estate team at 123 IM.
Founder 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 · 5
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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 Founder of DiligenceSquared and Partner at One Peak.
- What companies did Sébastien Chleq found?
- Sébastien Chleq founded DiligenceSquared.
Founder mafias
Y Combinator mafia10,619
Also came through, then founded or led a company.
One Peak mafia4
Also came through, then founded or led a company.
