| Company | Location |
|---|---|
| DiAgam | Ghislenghien, Belgium |
| Diamonex Products | Allentown, Pennsylvania, United States |
| Dickinson Wright PLLC | Detroit, Michigan, United States |
| DiCon FiberOptics Inc. | Richmond, California, United States |
| Dielectric Solutions LLC | East Butler, Pennsylvania, United States |
| Digital Matrix Corp. | Hempstead, New York, United States |
| Digital Optical Imaging Corp. | Vancouver, British Columbia, Canada |
| Digital Optics Corp. | Charlotte, North Carolina, United States |
| Digital Surf | Besancon, France |
| Dionex Corp. | Sunnyvale, California, United States |
