Zipline: Specializing in medical supply delivery drones, particularly in challenging environments.
EHang: A Chinese company working on passenger-carrying autonomous aerial vehicles.
Volocopter: A German company developing electric vertical takeoff and landing (eVTOL) aircraft for urban air mobility.
AgEagle: Focusing on drones for precision agriculture and other commercial applications.
It's worth noting that the drone industry is dynamic, with new startups emerging and established companies expanding their focus. The landscape may have changed since my last update, so I'd encourage you to check the latest industry reports for the most current information.