Foaster

Foaster is a two-person San Francisco firm from Y Combinator's Spring 2026 batch. It runs AI agents that interview employees across a company, builds a map of how work actually happens, then produces a transformation roadmap that human consultants review. The firm puts the assessment at about 10 days. One case study describes 280 interviews at a 350-person professional services firm in 9 days, with the client left anonymous. The founders have a public research record: a Werewolf benchmark for LLM social reasoning (33 stars on GitHub, covered by The Decoder) and a study of political bias in language models. No named clients, no reviews, no published prices.