
Sylvian
Specialized AI Agents.
About
Sylvian helps companies build specialized AI agents.
Topics
- Location
- San Francisco, CA, United States
- Team size
- 2 employees
- YC batch
- Fall 2025
- Status
- Shut down
- Stage
- Early stage

Specialized AI Agents.
Sylvian helps companies build specialized AI agents.

What they do:
Platform and marketplace for RL environments and AI data
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Reinforcement Learning (RL) for AI Agents
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Reasoning Fine-Tuning
Quick facts:
HQ: San Francisco, CA, United States

What they do:
We turn company data into training data
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Agentic Marketing Platform
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Specialized AI for Every Job
Quick facts:
HQ: San Francisco, CA, United States
Specialized AI Agents.
San Francisco, CA, United States
2 employees, according to the company profile.
There are no funding rounds for Sylvian in our data.
Similar startups: HUD, Osmosis, and TrainLoop.