Productivity

Upstream

Website
Founded 2023Origin source ↗Checked 2026-09-15

Overview

Your inbox, handled for you. Upstream's agents sort the noise, draft replies in your exact voice, follow up at the right time, and do what you ask - like finding receipts or scheduling meetings - so you can fly through your inbox and have fun doing it.

Company description As recorded 2026-11-08
LinkedIn Pricing
ProductivityCopilot & assistantConsumersIndividual professionalsSubscription

Customers & use cases

Founders & team

Previously Snik

Company history As recorded 2026-11-08

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

LinkedIn X
Founder profile As recorded 2026-09-15

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.

LinkedIn X
Founder profile As recorded 2026-09-15
7team members reported
Source-reported As recorded 2026-09-15

Founded 2023 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedParis, Île-de-France, France
Pricing evidenceA pricing page was detected
Maturity: Operating · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The company website explicitly reports customer or user adoption. This is a source-based assessment of a company claim; scale and revenue are not independently verified.

Company website: home Checked 2026-11-08

Used by thousands of professionals and teams at:

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observed
startup.observe Directory coverage · Sources & method