• Dixon Construction

• Dixon Valve & Coupling Co.

• Dotcalm Industrial Tools

• Draeger Safety, Inc.

• Dunham-Bush, Inc.

• Duraform Inc.

• Dustvent

• Dutch Made Inc.

• Dynaforce Corp.

• Dynapac

• E. Vernon Hill

• EIMCO Process Equipment Co.

• Earl Swensson Assoc., Inc. (ESa)

• Edwards Engineering Corp.

• Electra-Tec

• Electro-Steam Generation Corp.

• Electronic Sensors

• Elliott Co.

• Ellis & Watts

• Empire Abrasive Equipment Co.

• Endress & Hauser

• Enerpac

• Enmet Corporation

• Entoleter LLC

• Eugene Ernst Products Co. (Ernst Flow Industries)

• Exitronix