| Business | Phone |
| Cascade Engineering Techs Inc 14707 Se River Rd, Portland 97267 | (503) 653-7999 |
| Abs Integrated Svc Po Box 219219, Portland 97225 | (503) 626-6810 |
| Overseas Merchandise Inspctn 1200 Nw Naito Pkwy, Portland 97209 | (503) 223-9436 |
| Omic Usa Inc 3344 Nw Industrial St, Portland 97210 | (503) 223-1497 |
| Independent Building Inspctns 5319 Sw Westgate Dr # 225, Portland 97221 | (503) 646-5376 |
| International Inspection 10521 N Lombard St, Portland 97203 | (503) 283-2668 |
| Forensic Analytical 17400 Sw Upper Boones Ferry Rd, Portland 97224 | (503) 582-0860 |