- Johns Manville, 1982
- UNARCO, 1982
- Waterman Steamship Corp., 1983
- Wallace & Gale, 1984
- Forty-Eight Insulations, 1985
- McLean Industries, 1986
- Philadelphia Asbestos Corp., 1986
- Prudential Lines, Inc., 1986
- Standard Insulations, Inc., 1986
- United States Lines, 1986
- Gatke Corp., 1987
- Nicolet, Inc., 1987
- Todd Shipyards, 1987
- Delaware Insulations Distributors, 1989
- Hillsborough Holdings, 1989
- Raymark Corp./Raytech Corp., 1989
- Ancor Holdings/National Gypsum, 1990
- Carey Canada, Inc., 1990
- Celotex Corp., 1990
- Eagle Pitcher Industries, 1991
- H.K. Porter Co., 1991
- Cassiar Mines, 1992
- Kentile Floors Inc., 1992
- American Shipbuilding Co., 1993
- Keene Corp., 1993
- Rock Wool Manufacturing, 1996
- Brunswick Fabricators, 1998
- Fuller-Austin Insulation Co., 1998
- M.H. Detrick, 1998
- Harnischfeger Corp., 1999
- Rutland Fire Clay Co., 1999
- Armstrong World Industries, 2000
- Babcock & Wilcox Co., 2000
- Owens Corning/Fibreboard, 2000
- Pittsburgh Corning, 2000
- Burns & Roe, 2001
- EJ Bartells Co., 2001
- Federal Mogul Corp., 2001
- G-I Holdings, 2001
- Insul Co., 2001
- Murphy Marine Services, 2001
- Skinner Engine Co., 2001
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- Swan Transportation Co., 2001
- United States Mineral Products, 2001
- USG Corp., 2001
- W.R. Grace Co., 2001
- A-Best Products, 2002
- ACandS, Inc., 2002
- Artra Group, Inc., 2002
- GlT, 2002
- Harbison-Walker/AP Green, 2002
- JT Thorpe, 2002
- Kaiser Aluminum Corp., 2002
- North American Refractories Co. (NARCO), 2002
- Plibrico Co., 2002
- Porter-Hayden Co., 2002
- Shook & Fletcher Insulation Co., 2002
- Special Metals Corp., 2002
- Western Macarthur, 2002
- C.E. Thurston, 2003
- Combustion Engineering, 2003
- Congoleum Corp., 2003
- Dresser Industries/Halliburton, 2003
- Mid-Valley /Halliburton, 2003
- The Muralo Co., 2003
- Flintkote Co., 2004
- JP Stevens, 2004
- Ogelbay Norton (ONCO), 2004
- Quigley Co., 2004
- Special Electric Co., 2004
- Utex Industries, 2004
- API Inc., 2005
- Asarco, Inc., 2005
- Brauer Supply Co., 2005
- Lake Asbestos of Quebec, 2005
- ABB Lummus Global, 2006
- Dana Corporation, 2006
- Lloyd E. Mitchell Co., 2006
- Pacific Insulation Co., 2007
- Thorpe Insulation Co., 2007
- Christy Refractories Co., 2008
- Hercules Chemical Co., 2008
- T H Agriculture & Nutrition, 2008
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