Bacharach, Inc.
Badger Daylighting
BASE Engineering, Inc.
Bayshore Truck Sales
Betts Industries, Inc.
Bick & Heintz, Inc./Trans Tech
BJ Enterprises
B.J. Terroni Co.
Blackmer
Blue Cow Software
Blueline Technologies, LLC
Bock Water Heaters, Inc.
Boston Environmental
Boston Steel & Mfg. Co.
Boyertown Furnace/Columbia Boiler
Bradford White Corporation
Brilliant Lewis Environmental Services, LLC
Brown & Bigelow, Inc.
***Buderus***
***Burnham Hydronics***