Petroleum Equipment
Allied Tank Company
Bick & Heintz, Inc.
Central IL Mfg. Co.
Clay & Bailey
Eastern States Associates, Inc.
ECR International
Emco Wheaton Retail
Fairfield Maintenance Inc.
Girard Equipment, Inc.
Industrial Petroleum Supply Co., Inc.
John W. Kennedy Co.
Jones & Frank
Liquid Controls Group
McIndoo Associates
Morrison Bros. Co.
National Energy Equipment
OPW
Performance Ink, Inc.
Porter Associates, Inc.
RDM Industrial Electronics
Savage Associates
Service Station Service Inc.
Source North America Corporation
Stanwade Metal Products, Inc.
Superior Canopy Corporation
TR2 Corporation
Tremcar Inc.
Veeder-Root Company
Whitemarsh Corporation