A University of Alabama economics experiment strapped cameras to trash trucks to map urban decay. Five years and $15 million later, City Detect is doing the work of 40 code officers with one vehicle - and cities are starting to fix blight before it spreads.
Stella is a Y Combinator-backed AI assistant that turns any website into a 24/7 customer expert. Installed with a single line of code, it learns from a site's own content to answer visitor questions, qualify leads, and route complex cases to humans. Founded by Ryan Endacott (YC S22), Stella serves small businesses, SaaS companies, and local governments - including the Town of Carmel, NY, where it answered more than 2,400 resident questions and saved staff over 200 hours.