| Dorado International Corp (Seattle, WA)
|
| Dorrough Electronics (Chatsworth, CA)
|
| Doty Scientific Inc (Columbia, SC)
|
| Douglas Pipeline Co (Pittsburgh, PA)
|
| Dow Diversified Inc (Costa Mesa, CA)
|
| Drs Infared Technologies Lp (Dallas, TX)
|
| Drs Infrared Technologies (Freeport, PA)
|
| Drs Intelligence & Avionics (Dayton, OH)
|
| Drs Nytech Imaging Systems Inc (Irvine, CA)
|
| Dukane Seacom Div (Saint Charles, IL)
|
| Duke River Engineering (Newton Upper Fal, MA)
|
| Duke Scientific Corp (Fremont, CA)
|
| Dunn's Valve Testers Inc (Spring, TX)
|
| Duo-Rate Inc (Lindsay, NE)
|
| Dyets Inc (Bethlehem, PA)
|
| Dynalco Controls Corp (Fort Lauderdale, FL)
|
| Dyn-A-Med (Pittsburgh, PA)
|
| Dynametrics (Willoughby, OH)
|
| Dynamic isolation Systems Inc (Naperville, IL)
|
| Dynamic Systems Inc (Manassas, VA)
|
| Dynamic Testing Inc (Rustburg, VA)
|
| Dynasonics Inc (Houston, TX)
|
| Dynatest Consultants Inc (Starke, FL)
|
| Dyno One Inc (Edinburgh, IN)
|
| Dyno Tune Preformance Inc (Jacksonville, FL)
|
