•   Alcoa
  •   Allied Signal
  •   American Airlines
  •   Austin White Lime
  •   Bausch & Lomb
  •   Bay Valley foods
  •   Bell Atlantic
  •   Cargill
  •   City of Henderson
  •   City of San Antonio
  •   Concentra Medical Centers
  •   Cott Beverages
  •   Daimler Chrysler
  •   Detroit Edison
  •   DoL – MSHA
  •   DoL – OSHA
  •   Dow Chemical
  •   Dunlap Tire Corp.
  •   Ethel M Chocolates
  •   Exxon Mobile
  •   Fiber Glass Systems
  •   Florida Power Corp.
  •   Ford Motor Co.
  •   General Electric
  •   General Motors
  •   GlaxoSmithKline
  •   Gulfstream
  •   Harland Clarke
  •   H-E-B
  •   Henry Ford Hospital
  •   Hoechst Celanese
  •   Johns Manville
  •   Kennedy Space Center

 

  •   Kinetic Concepts Inc.
  •   Kimberly Clark Corp.
  •   Lucent Technologies
  •   Markle Manufacturing
  •   Mars Snackfood USA
  •   Martin Marietta
  •   Mosaic
  •   National Park Service
  •   Navarro Pecan
  •   Owens Corning
  •   Proctor & Gamble
  •   Sandia National Lab
  •   Southern Coal Co.
  •   Starky Labs
  •   Southwest Research institute
  •   Temple-Inland Gypsum
  •   Toyotetsu
  •   Toyotomi
  •   Tropicana
  •   Union Carbide
  •   Uniroyal Goodrich Tire
  •   Universal Studios
  •   USAA
  •   US Air Force
  •   US Army
  •   US Customs
  •   US Dept. of Energy
  •   US Postal Service
  •   United Parcel Service
  •   Valley Caliche
  •   Walt Disney World
  •   Westinghouse
  •   Whirlpool