Sebastien de Halleux photo
Investor profile

Sebastien de Halleux

Founding General Partner, Graph Ventures

About

Sebastien de Halleux is a serial entrepreneur-operator who co-founded Playfish (one of the earliest social gaming studios), Saildrone (autonomous ocean data drones), and Field AI (field autonomy for robots), giving him hands-on experience building products across consumer gaming, ocean tech, and AI robotics rather than coming from a traditional finance background. He maintains a distinctive philosophy that there is no such thing as a low-quality user, only a low-quality experience, focusing on product quality and user delight over short-term monetization tactics. Sebastien de Halleux is a serial entrepreneur-operator who co-founded Playfish (one of the earliest social gaming studios), Saildrone (autonomous ocean data drones), and Field AI (field autonomy for robots), giving him hands-on experience building products across consumer gaming, ocean tech, and AI robotics rather than coming from a traditional finance background. He maintains a distinctive philosophy that there is no such thing as a low-quality user, only a low-quality experience, focusing on product quality and user delight over short-term monetization tactics.

Works at

Investment focus

Stages
Seed
Series A
Sectors
FinTech
Ecommerce
Marketplaces
Enterprise
SaaS
Education
Deeptech
Hardware
Media
AI
Devtools
Proptech
Web3
Crypto

Investment details

Avg check size$50K - $300K
Can lead rounds
No
Geographies
USA
Canada
LatAm
Europe
Israel
Asia-Pacific
India