Year founded: 1945
Revenue: $84.2 Billion
Employees: 145,000The most fuel-efficient auto company in the U.S.
While other automakers gripe, Honda attacks the issues of fuel economy and emissions with relish. Working independently, it is focusing on two alternative fuel technologies, the natural gas powered "Civic GX" and the hydrogen fuel cell "FCX." Honda has also taken a crack at solving a problem other automakers have left to the oil companies: creating an infrastructure for hydrogen. Honda's solution is for individual refueling stations that provide heat and electricity for the home as well as hydrogen for a fuel-cell-powered car. Long term, Honda wants to be the world's cleanest, most efficient manufacturer. It has promised to reduce CO2 emissions from its factories as well as its vehicles by 5 percent between 2005 and 2010 - on top of the 5 percent it achieved between 2000 and 2005. --Alex Taylor III