Legal

Third Chair

Website
Founded 2024Origin source ↗Checked 2026-09-15

Overview

Third Chair works with IP rightsholders to enforce and monetize their rights, supported by an on-demand network of top lawyers to step in when you need them.

We’ve started with revenue-generating workflows, giving media companies visibility into who’s using their content and helping them turn unauthorized ads into a predictable income stream.

The biggest media and entertainment companies like Universal Music Group in the world rely on Third Chair to enforce their intellectual property, unlock licensing revenue, and accelerate deal flow.

Company description As recorded 2026-11-08

Founders & team

Previously Watchdog AI

Company history As recorded 2026-11-08

Yoav Zimmerman

Founder/CEO

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.

Founder profile As recorded 2026-09-15

Shourya Lala

Founder/CTO

Shourya Lala is the Founder and CTO of Third Chair. He previously founded game-based investments startup Fello (YC W22), scaling it to 2mn users and tens of millions in investments. ex-ODF, ex-BlackRock, 2x YC

Founder profile As recorded 2026-09-15
8team members reported
Source-reported As recorded 2026-09-15

Founded 2024 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA; Remote
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

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 year