Upstream
YC S23 ↗Paris, FR · Founded 2023 · 7 employees · 4 known investors
Upstream is a team communication and collaboration platform designed to help professionals manage messages, tasks, and decision-making workflows across their organization.
AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSin /upstreamdo@upstream_doycombinator.com ↗
Founders & leadership· Y Combinator alumni (S23)
LL
Louis Lecatin𝕏Founder
JT
Jonathan Tiretin𝕏Founder
Investors · 4
In the news
- Upstream - The first inbox designed for humans and agentsycombinator.com · 2026
- Upstream Raises $3 Million To Rebuild Email As A Native Surface For AI Agentspulse2.com · 2026
- Upstream Raises $3M Pre-seedthesaasnews.com · 2026
- UPSTREAM raises $3 million on a counterintuitive bet: the future of work still runs through email - STARTUP IN EUROPEstartup-in-europe.com · 2026
- Upstream Raises $3.0M Pre | Signalbasetrysignalbase.com · 2026
- YC-backed French startup Upstream raises $3M to rebuild email in the era of AI agents — TFNtechfundingnews.com · 2026
- Upstream raises $3M to launch collaborative AI inbox backed by YC and Xavier Niel - Tech.eutech.eu · 2026
- ⚡ Upstream || 📥 An email client designed for team collaborationycombinator.com · 2023