This document summarizes Hisobus, an online charter bus booking service. It discusses that the charter bus industry is large, valued at over $6 billion annually. Hisobus aims to facilitate online booking of charter buses, allowing customers to book trips within 15 minutes compared to 1-2 days previously. Their business model involves charging booking fees of 20% to bus operators. If they capture the entire charter bus rental market, their potential annual revenue is over $100 million. Currently over 400 companies use their services.