| Windy City Wire | Kimberly DePaola | Bolingbrook | IL |
| Petro Energy, Inc. | Dean Dendy | Houston | TX |
| MI Petro Construction & Supply Inc. | Norm Dekens | Calgary | AB |
| MagTek | James Deignan | Seal Beach | CA |
| Western Pump, Inc. | Vania DeFrates | San Diego | CA |
| Petro Service Limited | Katrina DeFrancis, CPA, CA | Saint John | NB |
| Dale Dean | Cincinnati | OH |
| United Rentals Trench Safety | Tina Davis | Kansas City | MO |
| PMP Corporation | Mike Davis | Avon | CT |
| RDM Industrial Electronics, Inc. | Michelle Davis | Nebo | NC |
| Leighton O'Brien Inc. | Jeff Davis | Cypress | TX |
| JF Petroleum Group (Branch) | Marc Daitch | Webster | MA |
| Oscar W. Larson Co., The (Branch) | Jamie Dahmen | Indianapolis | IN |
| Washify Services | Matt D'Souza | West Roxbury | MA |
| Square D | Dan Cross | Salisbury | NC |
| JF Petroleum Group (Branch) | Brad Crawford | Dayton | OH |
| MI Petro Construction & Supply Inc. | Dan Cramer | Calgary | AB |
| Franklin Fueling Systems | Jim Craig | Madison | WI |
| Accent Environmental Services Inc. | Adam Craig | Lufkin | TX |
| KleerBlue (Separation by Design) | Stephen Cox | Evansville | IN |
