Revell is the brand name today of two manufacturers of scale plastic models. The original US company merged with another, Monogram

Monogram models

Monogram has been a premier maker of scale models of aircraft, spacecraft, ships, cars, and military vehicles since the early 1950s. The company was formed by two former employees of Comet Kits, Jack Besser and Bob Reder...

, but now trades only under the Revell name. European Revell Germany separated from the US company in 2006.
Revell was founded in 1943, as a plastics molding firm in Venice, California, in the United States by Lewis H. Glaser (1917-1972) and Jacques Fresco.