Upstream

The first inbox designed for humans and agents

Y CombinatorSummer 2023ActiveB2BProductivity

What they do

Problem

People are overwhelmed by inbox clutter and time-consuming email triage, drafting, and follow-ups.

Solution

An AI-powered email client with agents that automatically sort messages, draft replies in your voice, schedule follow-ups, and execute email-related tasks on request.

Who it's for

Busy professionals and teams who rely heavily on email for communication.

Founders

Louis Lecat

Founder

I'm the founder & CEO @ Upstream. I was one of the early product people @ Asana, driving growth and adoption up to $100M ARR. I went on to lead the entire product team @ Algolia (YC W14) as their Head of Product through series B and C, assembling a team of 20+ talented product builders, while growing ARR 2.5x to $100M+. Also worked @ AgilOne (acquired) and graduated from @ Stanford and @ Ecole des Ponts

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Jonathan Tiret

Founder

I am the co-founder & CTO @ Upstream. My love for software started when I was only a teenager: I developed @ Dino Gaia, one of the most popular online French consumer games in the 2000s, registering a million visits every month. I've since built extensive technical hands-on and leadership experience across multiple sectors, including ride-hailing, fintech, and legaltech. I was most recently the VP of Engineering @ Doctrine before it got acquired.

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