Hop Aero

Hop Aero is developing autonomous hypersonic cargo rockets designed to deliver critical supplies to austere and contested locations. Its vehicle, Rook, is engineered to carry a 250 kg payload up to 750 km in approximately 15 minutes, a speed faster than conventional aircraft. The technology enables point-to-point logistics at hypersonic speeds, targeting scenarios where traditional transport infrastructure is unavailable or compromised.

The company operates from Orange County, California, with a small team working across rocket development, hypersonic vehicles, and autonomous systems. Hop Aero is venture-backed and was part of Y Combinator's Summer 2026 batch. Its stated mission focuses on enabling resilient global logistics and providing an asymmetric capability to deter conflict.