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Third Chair (YC X25) — AI-Native IP enforcement agent

Third Chair appears in Y Combinator's company directory in the Spring 2025 batch, listed 2025-05-29. AI-Native IP Enforcement Agent.

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Third Chair: Accepted into Y Combinator Spring 2025

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Third Chair

New accelerator entry · 2025-05-29 · the record

Spring 2025
batch
8
people
Early
stage
United States of America
region
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In their words

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.

What the record says

BatchSpring 2025
Announced2025-05-29
StageEarly
StatusActive
Team size8
IndustryB2B
Sub-industryB2B -> Legal
RegionsUnited States of America, America / Canada, Remote, Fully Remote
BasedSan Francisco, CA, USA; Remote
HiringYes
Sitehttps://usethirdchair.com
Previously known asWatchdog AI

The full profile

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If you're behind Third Chair: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. FoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry.

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Permanent URL: https://mentionfox.com/funding/yc-third-chair
Last updated 2026-09-26
Primary record: Y Combinator directory entry
Third Chair (YC X25) — AI-Native IP enforcement agent. MentionFox, 2026-09-26. https://mentionfox.com/funding/yc-third-chair