About
Louis Lecat is a product leader who previously held Head of Product roles at Algolia and early product positions at Asana, where he contributed to growth at both companies. He also worked at AgilOne and holds degrees from Stanford and École des Ponts.
Louis Lecat @louislecat
Notion Mail shuts down Sept 22 If you're switching off, we'll personally move your inbox for you, free A quick call with me or the team, fully set up on Upstream in minutes You picked Notion Mail because you wanted a beautiful, simple inbox. We're doubling down on exactly that
Jun 26, 2026 · ♥ 9
Louis Lecat @louislecat
RIP Notion Mail 🫡 building a new email client is hard killing your product when it doesn't work takes guts too. Respect for that decision. @upstream_do is not going anywhere Email is still broken and we're still building Upstream for everyone who's ready to move their emails https://t.co/H4aj8x24bu
Jun 25, 2026 · ♥ 9 · ⇄ 1
Louis Lecat @louislecat
Upstream is now live on @ycombinator's Launch YC! Cool to see the feature showcase: https://t.co/Gfou2Vw6fO
Jun 25, 2026 · ♥ 3 · ⇄ 1
Founder at UpstreamYC S23
Intro paths
Louis went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran Upstream's batch and knows the company first-hand. YC profile ↗
In turn, Louis can intro founders to Upstream's investors below.
Upstream's investors · 4
Co-founders at Upstream
Experience
- Upstream (YC S23)Co-founder & CEOcurrent2023 — presentVille de Paris
- Various StartupsProduct Advisor | Mentor | Coach2022 — 2023
- Taking Care of my FamilyTaking a break2021
- AlgoliaHead of Product2018 — 2021Paris Area, France
- AsanaProduct Management2016 — 2018Région de la baie de San Francisco, États-Unis
- AgilOneProduct Management2012 — 2016San Francisco Bay Area
- AgilOneData Scientist2009 — 2010Greater New York City Area
- Institut NavierResearch Assistant2008Paris Area, France
Education
- Stanford UniversityMaster of Science (M.S.), Management Science & Engineering2010 — 2011
- Y CombinatorYC S232023
- Ecole Nationale des Ponts et ChausséesMaster of Science (Diplôme d'Ingénieur), Engineering2007 — 2010
- Lycée Louis PasteurClasses Préparatoires, Major in Pure Mathematics & Physics2004 — 2007
Skills & more
Languages English · French
From Louis's professional profile.
Same school
Also attended Stanford University1,768
+ 1,762 more
Also attended Y Combinator1,475
+ 1,469 more
Shared employers
Also worked at Upstream (YC S23)1
Also worked at Various Startups90
+ 84 more
Also worked at Algolia8
+ 2 more
Also worked at Asana12
+ 6 more