Bild AI

Cobalt sells expert data to frontier AI labs. The platform combines a network of 24,700+ credentialed domain experts across 1,300+ hospitals, universities and research centers with Cobalt's own annotation software. Labs use it for expert annotation, RL environments, evals and clinician-anchored benchmarks. 116,000+ expert reasoning traces delivered so far. The team is also building an enterprise AI business for healthcare revenue cycle management: LLM-based billing-code matching that finds revenue health systems never collected.

Doe Labs, Corp. was founded in 2026 as a command center for running teams. The company provides agents that perform work for companies, enabling organizations to streamline their operations and team management. Through its platform, Doe Labs helps businesses coordinate and execute work more efficiently.

This San Francisco-based startup is a 2-person company backed by Y Combinator's P26 batch. Founded with support from one of the world's most prestigious accelerators, the company is in the early stages of building and scaling its business.