the name given by the United States government to a number of sites in the Marshall Islands and a few other sites in the Pacific Ocean at which it conducted nuclear testing between 1946 and 1962.

General Motors operates several proving grounds.

Ford Motor Company operates several proving grounds worldwide, for development and validation testing of new vehicles.

Stellantis North America, more commonly known as Chrysler, operates proving grounds around North America for development and validation testing of new vehicles.