Casey is an AI-native commercial insurance brokerage that automates the submission infrastructure for complex insurance policies. The platform ingests client and risk data directly from broker systems, auto-fills carrier applications and supplemental forms in one click, and handles carrier follow-up questions by matching them to existing data. When new information is required, it generates the request and sends it to the client, managing the complete submission package to carriers. Founded by a team formerly at grape insurance, Casey is part of Y Combinator's Fall 2025 batch.