| Business | Phone |
| Camco Manufacturing Inc 6840 N Fathom St # F, Portland 97217 | (503) 283-1764 |
| Rhodia Inc 4429 N Suttle Rd, Portland 97217 | (503) 286-4451 |
| Contechem Inc 10761 N Lombard St, Portland 97203 | (503) 283-3021 |
| Huntsman Corp Portland 97204 | (503) 228-3007 |
| Kanto Corp 13424 N Woodrush Way, Portland 97203 | (503) 240-8093 |