12. Fuel Tech
Rank: 12 (Previous rank: N/A)
2006 Revenues (millions): $75.11
Headquarters: Batavia, IL
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The company produces technologies and chemicals for reducing slag and nitrogen oxide emissions-both byproducts of coal combustion-and sells them primarily to coal-fired utilities. The fight against air pollution in the U.S. and abroad, particularly in China, fueled FTEK's growth last year.
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