| FIFranklin International INC | Portland | OR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KCKanto CORP | Portland | OR | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| MSMaine Standard Biofuel | Portland | ME | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| GWGreat Western Ink | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ANAirgas Norpac | Portland | OR | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| ASArkema Site | Portland | OR | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| BBBaron Blakeslee Site | Portland | OR | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| BIBenson Industries | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| ESEco Services | Portland | OR | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| FGFlint Group | Portland | OR | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| FGFlint Group Packaging Inks North America Corporation | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| FIFlorascience INC | Portland | OR | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| HTHigh Temp | Portland | OR | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| IFIcon Foods | Portland | OR | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| IPImperial Paint | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| JCJadco Chemical | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| KWKag West | Portland | OR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KIKoppers Industries Portland Tar Plant | Portland | OR | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| LMLouis Mack INC | Portland | ME | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MHMount Hood Chemical Corporation | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| PLPacific Light Technologies | Portland | OR | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| PPPatriot Paint, LLC | Portland | IN | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| PVPella Vinyl Portland Operations | Portland | OR | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| RPRhone-poulenc Portland Site | Portland | OR | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| TCTek Chemical Site | Portland | OR | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| UOUniversity of Portland | Portland | OR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| WPWood-kote Products | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ATAcrylic Technologies INC | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ASAcme Scenic & Display INC | Portland | OR | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| ACApollo Chemical & Equipment Company LLC | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| AFAunt Fannie, INC | Portland | OR | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| BNBulk Natural LLC | Portland | OR | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CSCamamu Soap LLC | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
 Camco Manufacturing | Portland | OR | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CACascade Agrochem | Portland | OR | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CCCura Cs LLC | Portland | OR | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| DPDrew Paints | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ESEastern States Paving | Portland | OR | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| EIEnvirologix INC. | Portland | ME | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| GAGamblin Artists Colors CO | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| HIHoneywell International INC | Portland | OR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| IIInx International Ink CO | Portland | OR | Chemical Manufacturing325910 | — | ◇ UNVERIFIED |
| KWKemira Water Solutions, INC. | Portland | OR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| KPKokem Products | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| MGMickelberry Gardens, Inc. | Portland | OR | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| MPMiller Paint CO INC | Portland | OR | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SKSafety Kleen a Clean Harbors Company | Portland | CT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| UMUse Me Products, LLC | Portland | ME | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| ZIZogenix INC | Portland | OR | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
