| Company | Category | Area | Address | Web | Contact person | |
| 3RD PORTFOLIO MANAGEMENT | management services | Texas | 2115 BOLSOVER ST, HOUSTON, Harris, Texas, 77005-1617, USA | - | - | Robert Weiner |
| 3RD POWER COMMUNICATIONS | Book Publishing | Wisconsin | 131 W WILSON ST, MADISON, Dane, Wisconsin, 53703-3243, USA | - | - | - |
| 3RD PRO CONSULTANTS INC | Employment Agency | Florida | 18733 SE LAKESIDE WAY, JUPITER, Palm Beach, Florida, 33469-8114, USA | - | - | Steve Nardy |
