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Upstream

SaaSAI-native email platformB2B📍 Paris, France

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.

Total raised
$3M
tracked to date
Latest round
Pre-seed
Jun 4, 2026
Known investors
3
led by Y Combinator

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🏆 Featured in Datapile’s Q2 2026 France Funding Report

Read the Q2 2026 France report →
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Funding history

  1. 1
    $3MPre-seedJun 4, 2026

    Led by Y Combinator

    Announcement ↗

Founder

L
Louis Lecat
Co-founder

Investors in Upstream

Backers from this company's tracked funding rounds.

  • YY CombinatorLead investorVC firm
  • CConnect VenturesVC firm
  • Oover 30 founders and operators from companies including Framer, Algolia, Asana, Alan, and Webflow

Upstream in the news

Coverage of this company's funding, tracked by Datapile.

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