Third Chair

AI-Native IP Enforcement Agent

3.2Score#322 of 999 agents#3 of 6 in Litigation paralegal

Why it ranks #322

Third Chair, an AI litigation paralegal from YC Sp25, ranks #322 of 999 AI agents and #3 of 6 in Litigation paralegal, with a score of 3.2 of 10. Data as of 3 Oct 2026.

The score adds four parts, each 0 to 10, by weight. Every point comes from public evidence. How scoring works ·

Proof 3 × 30% 0.9
Scale 3 × 30% 0.9
Momentum 2 × 25% 0.5
Autonomy 6 × 15% 0.9
= 3.2

Proof
Do customers use it? 30% of the score
3
Claims named customers.
- +3
  Named customers
  “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.”
  YC page
Not found: revenue or growth (+4), a customer result (+2), a customer count (+2), work done at scale (+2)
Scale
Is there a real company behind it? 30% of the score
3
8 people.
- +3
  8 people on its YC page5 to 9 people
Not found: funding round in its news (+3)
Momentum
Is it shipping and growing now? 25% of the score
2
Shows hiring.
- +2
  Hiring: 3 open rolesIP Enforcement Counsel (Copyright), IP Enforcement Counsel (Copyright), Worldwide, Enterprise Account ExecutiveYC page
Not found: launch YC post in the last 6 months (+3), new traction claim in the last 6 months (+2), funding news in the last year (+2), a batch in the last year (it is YC Spring 2025) (+1)
Autonomy
How much of the job does it do on its own? 15% of the score
6
Supervised agent: takes actions in other systems; a person approves key steps.
- +6
  Level 2 of 4: Supervised agentTakes actions in other systems; a person approves key steps.
What the model read
- Acts in other systems: 74% likely
- Finishes whole tasks: 27% likely
- Calls itself an agent: 96% likely
Level 2: Takes actions in other systems; a person approves key steps.

About Third Chair

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.