| ITIntelicoat Technologies | Portland | OR | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| JCJadco Chemical | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| KWKag West | Portland | OR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KKneedspeed | Portland | OR | Plastics and Rubber Products Manufacturing326100 | — | ◇ UNVERIFIED |
| KIKoppers Industries Portland Tar Plant | Portland | OR | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| LILakeside Industries INC | Portland | OR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LPLinnton Plywood Site | Portland | OR | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MHMount Hood Chemical Corporation | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MPMulti-craft Plastics | Portland | OR | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| OSOff Site Storage | Portland | OR | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| OOpti-craft | Portland | OR | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| OPOregon Plating Co., INC. | Portland | OR | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| OCOwens Corning Foam Insulation Gresham | Portland | OR | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| PLPacific Light Technologies | Portland | OR | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| PPPacific Power Vac LLC | Portland | OR | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| PMPeerless Manufacturing Site | Portland | OR | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| PVPella Vinyl Portland Operations | Portland | OR | Chemical Manufacturing325131 | — | ◇ UNVERIFIED |
| PCPepsi Cola Bottling | Portland | OR | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| PPPierce Pacific Manufacturing | Portland | OR | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| PWPorter W Yett Company | Portland | OR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| PWPortland Willamette | Portland | OR | Fabricated Metal Product Manufacturing332439 | — | ▲ REPORTED CLOSED |
| PEPremier Edible Oils Site | Portland | OR | Food Manufacturing311220 | — | ◇ UNVERIFIED |
| PSProvidence Saint Vincent Medical Center | Portland | OR | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| QQuad | Portland | OR | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RIRedmond Industries | Portland | OR | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| RPRhone-poulenc Portland Site | Portland | OR | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| RRoadmaster | Portland | OR | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| RDRr Donnelley Site | Portland | OR | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SSSchnitzer Steel Industries - North Burgard Facility | Portland | OR | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| SESchoolhouse Electric CO | Portland | OR | Fabricated Metal Product Manufacturing332813 | 100-499 | ◇ UNVERIFIED |
| SISimonds International | Portland | OR | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
| SSSolopower Systems | Portland | OR | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SSSupreme Steel Portland | Portland | OR | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| TATci America | Portland | OR | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| TCTek Chemical Site | Portland | OR | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| TDTvt Die Casting and Manufacturing | Portland | OR | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| UOUniversity of Portland | Portland | OR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| UAUS Army Coe - Portland Moorings | Portland | OR | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| WEWalker Emulsions | Portland | OR | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| WPWastech Processing and Recovery Center | Portland | OR | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| WWestrock | Portland | OR | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| YIYork International Pace Division Site | Portland | OR | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| 1N18440 NE San Rafael | Portland | OR | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| 1N18620 NE San Rafael | Portland | OR | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| 9E9943 E Burnside | Portland | OR | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| ALAanpama LLC,Peggy Hoag | Portland | OR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| AAdega | Portland | OR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| AGAegis Group | Portland | OR | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
