Lenny Rachitsky
Operator AngelAngel Investor
Product newsletter creator and active angel
Background
Lenny Rachitsky is a product advisor, writer, and active angel investor best known for Lenny's Newsletter, one of the most widely read product and growth publications on Substack. He spent seven years at Airbnb as a Product Lead for supply growth, joining via the 2012 acquisition of his startup Localmind. He has made over 140 angel investments, with unicorns in his portfolio including ClassDojo and Stytch. His investing focuses on AI, B2B SaaS, marketplaces, and consumer products. He is also an investor at AirAngels.
Investment Thesis
Back exceptional product builders in AI, B2B SaaS, and consumer — especially those building tools that help people work and create better.
Investment Focus
Stages
Sectors
Based in: San Francisco, CA (North America)
Notable Investments
ClassDojo
Edtech unicorn
Stytch
Auth infrastructure unicorn
Granola
AI meeting notes, Series B 2025
Levels
Metabolic health platform
Pocus
Product-led sales platform; named angel in Series A ($23M led by Coatue)
LlamaIndex
Named angel in $8.5M seed led by Greylock (Jun 2023); LLM data framework
Delphi
Named angel in $16M Series A led by Sequoia (Jun 2025); AI expert clone platform
Artie
Real-time database replication; Series A Dec 2025