Michael Lin is Co-Founder of FlowManual (YC S26), an AI-powered bidding and procurement platform transforming back-office operations for construction contractors across the US.

Michael studied Computer Science and Statistics at Harvard University before dropping out to build FlowManual alongside co-founder Gordon Yu.

As a Harvard-trained engineer, Michael identified the massive inefficiency in construction procurement and set out to eliminate hundreds of hours of manual contract and bidding work.

FlowManual was accepted into Y Combinator's Summer 2026 batch and raised $500,000 in seed funding, validating the team's vision to modernize pre-construction workflows.

FlowManual serves both general and specialty contractors, enabling faster bid wins and higher delivery standards by automating the entire pre-construction buying process.