Gaetan Castelein

Active Investor

CMO & Head of Sales and Partnerships at Onehouse

Menlo Park, California

Gaetan Castelein, CMO & Head of Sales and Partnerships at Onehouse is an active investor based in Menlo Park, California. This profile covers what Gaetan Castelein backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Pre SeedSeed
Invests in: SaaS & EnterpriseConsumer & RetailDeveloper Tools & DataMedia & Content
Location: Menlo Park, California
Typical check: $150K
Past investments: 3

Notable investments

CortexVMwareCerebra

How to reach Gaetan Castelein

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Frequently Asked Questions

What does Gaetan Castelein invest in?

Gaetan Castelein invests in SaaS & Enterprise, Consumer & Retail, Developer Tools & Data and Media & Content, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.