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- ABB
- Alabama Power
- ALCOA
- Boeing
- Boise Cascade
- Borg Warner
- Bosch
- British Petroleum
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- Cargill
- Caterpillar
- CertainTeed
- Chrysler
- Clean Harbors
- Clorox
- Coleman
- Colgate Palmolive
- Conoco Phillips
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- Eastman Chemical
- Eaton
- E I DuPont
- Florida Power & Light
- Harley-Davidson
- Honda
- Intel
- John Deere
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- Kaiser Aluminum
- Kawasaki
- NASA
- Norfolk Southern
- Nucor Steel
- Parker Hannifin
- PPG
- Procter and Gamble
- Quaker Oats
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- Rolls Royce
- Sherwin Williams
- Sikorsky Aircraft
- Smurfit Stone
- Snap on Tools
- Trane
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- US Army Corps of Engineers
- US Coast Guard
- Westinghouse Electric
- Whirlpool
- Williams Gas Pipeline
- Xerox
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