- AAA Michigan
- Air Products and Chemicals, Inc.
- Alberta Workers' Compensation Board
- ALCOA
- Arapahoe County
- Ashland
- The Associates
- Boeing
- Burlington Industries
- Canadian Utilities Limited
- CDSL Canada
- Chemical Abstracts
- Chicago Mercantile Exchange
- Chicago Tribune
- Columbia Gas
- Comerica Bank
- Consumer's Energy
- Corning
- Country Companies
- Deluxe
- Detroit Edison
- Fidelity
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- First Security
- Florida Power
- GPU Energy
- Hitachi
- Humana
- IRS
- Liberty Mutual
- MBNA
- MCI
- National Institutes of Health (NIH)
- Novartis
- Peoples Gas Light and Coke
- Phoenix Life
- PPG Industries
- Royal Bank
- Scotia Bank
- SEI Investments
- Social Security Administration
- TECO (Tampa Electric)
- Traveler's
- Tultex
- USAirways
- Verizon
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