| Company | Category | Area | Address | Web | Contact person | |
| INFRA-STRUCTURES INC | Engineering Service | Virginia | 2611 JEFFERSON DAVIS HWY, ARLINGTON, Arlington, Virginia, 22202-4016, USA | - | - | - |
| INFRA-TECH | Infrared Inspection Service | Louisiana | 4240 TOULOUSE ST, NEW ORLEANS, Orleans, Louisiana, 70119-4620, USA | - | - | - |
