Third Chair
Automating complex legal workflows with human lawyers in the loop.
About the Company
Third Chair (YC X25) builds AI-powered legal infrastructure with human lawyers in the loop, helping rightsholders turn complex legal workflows into scalable revenue. We’re founded by two second-time YC founders with prior exits—Yoav previously co-founded Trendpop (YC W21), which scaled to $1M ARR in 16 months processing millions of social posts per day, and Shourya previously co-founded Fello (YC W22), which grew to 2M+ users, processed millions in investments, and raised $4M+. Backed by Y Combinator and FundersClub with $2.3M raised, customers used Third Chair to generate over $1M in revenue in the last six months of 2025.
Tech Stack
Tech Stack: Node.js & Go for main backend server stack. React for the frontend. PostgreSQL + Elasticsearch as DBs
Founders
Yoav is CEO / Founder of Third Chair (YC X25). Yoav previously founded Trendpop (YC W21) and scaled it past $1M ARR in the media/entertainment industry, selling to customers like Universal Music Group and Mr. Beast. Before that, he worked on machine learning at Google and early-stage AI startups.
Open Positions at Third Chair (2 Jobs)
Ready to start your space career at Third Chair?
