Bob,
According to: DJI (company) - Wikipedia -
Dà-Jiāng Innovations Science and Technology Co., Ltd (Chinese: 大疆创新科技有限公司; doing business as DJI) is a Chinese technology company headquartered in Shenzhen, Guangdong. It manufactures unmanned aerial vehicles (UAV), also known as drones, for aerial photography and videography, gimbals, flight platforms, cameras, propulsion systems, camera stabilizers, and flight controllers.
I assume that should cover most of the the Uav area.
However, it doesn't answer my question;-)