HUMMER was founded in 1994 and is currently defunct as of 2010. They may be resold and made again (though at this point it is rather unlikely), the last H3 was made on May 24th of 2010.

Originally built by AM, they were originally created for the United States Armed Forces.

The first Hum-vees available to the public under the HUMMBER name rolled out in 1992.
After their success, the H2 and H3 followed. You can view images of them below (h2 then h3 respectively).

A pink H2 HUMMER (ABOVE)
H3 HUMMER (BELOW)


Cars manufactured by Hummer:
H1, H2, and H3.