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Upstream

SaaSParis, France· B2B

Upstream is a Paris-based software startup developing an AI-native email platform. The company aims to modernize the email experience by allowing human teams and AI agents to collaborate effectively within a single inbox environment.

$3M · Pre-seedVisit website ↗

Funding history

  1. $3MPre-seed2026-06-04
    Source: news.google.com

Founder

L
Louis Lecat
Co-founder

Investors in Upstream

Backers from this company's tracked funding rounds.

  • Y Combinator
  • Connect Ventures
  • over 30 founders and operators from companies including Framer, Algolia, Asana, Alan, and Webflow

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