| Company | Category | Area | Address | Web | Contact person | |
| S D WIRELESS | Cellular Phone Svcs | California | 7007 FRIARS RD, SAN DIEGO, San Diego, California, 92108-1148, USA | - | - | - |
| S D WOODRUFF CO | Seeds & Bulbs-Retail | Texas | 6142 BRANDEIS LN, DALLAS, Dallas, Texas, 75214-2113, USA | - | - | Stiles Woodruff |
| S D WRIGHT MANAGEMENT CO INC | Fuel Management | Tennessee | 7699 BURLESON LN, MURFREESBORO, Rutherford, Tennessee, 37129-8138, USA | - | - | - |
