| JUJw Underground Enterprises | Gresham | OR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KWKag West | Portland | OR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| KKKal Kustom Enterprises | Salem | OR | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| KIK.d.a. INC. | Warrenton | OR | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| KDKellys Directional | Springfield | OR | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| KGKeystone Granite | Salem | OR | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| KRKeystone Rv | Pendleton | OR | Transportation Equipment Manufacturing336112 | — | ◇ UNVERIFIED |
| KEKing Estate Winery | Lorane | OR | Beverage and Tobacco Product Manufacturing312130 | — | ◇ UNVERIFIED |
| KRKinzua Resources / Heppner Power Plant Site | Heppner | OR | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| KPKlamath Pacific Edison Plant | Klamath Falls | OR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KKneedspeed | Portland | OR | Plastics and Rubber Products Manufacturing326100 | — | ◇ UNVERIFIED |
| KIKoppers Industries Portland Tar Plant | Portland | OR | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| LCLake Cheadle Recreation Area | Lebanon | OR | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| LILakeside Industries INC | Portland | OR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| LWLamb Weston Boardman-west Facility | Boardman | OR | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| LOLand O Lakes Purina Mills | Mcminnville | OR | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| LRLangenburg Research Site | Eugene | OR | Computer and Electronic Product Manufacturing334613 | — | ◇ UNVERIFIED |
| LALaurelwood Academy | Gaston | OR | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| LSLes Schwab Warehouse Center Incorporated | Prineville | OR | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| LHLinde Hillsboro | Hillsboro | OR | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LPLinnton Plywood Site | Portland | OR | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| LGLitton Guidance and Control Division Site | Grants Pass | OR | Computer and Electronic Product Manufacturing334000 | — | ◇ UNVERIFIED |
 Louisiana-pacific Hines Site | Hines | OR | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| LJLuhr Jensen and Sons Site | Hood River | OR | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| MCMarble Concepts and Designs | Central Point | OR | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| MLMarine Lumber CO. | Tualatin | OR | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MRMarys River Lumber | Philomath | OR | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MRMarys River Lumber Company | Corvallis | OR | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MBMasco Bath Site | Klamath Falls | OR | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| MEMatsushita Electronic Materials Site | Forest Grove | OR | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| MBMcfarlane's Bark, INC. | Clackamas | OR | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| MMMcgovern Metals | Roseburg | OR | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
| MFMckenzie Forest Products | Eugene | OR | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| MLMcnary Lock and Dam | Umatilla | OR | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| MPMedford Plating INC | Medford | OR | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MPMedford Plating INC | White City | OR | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| MCMetolius Climbing | Bend | OR | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| MCMid Columbia Lumber | Culver | OR | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Composites | Oregon City | OR | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| MCMolalla Concrete | Molalla | OR | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMonaco Coach Corporation | Harrisburg | OR | Transportation Equipment Manufacturing336213 | — | ◇ UNVERIFIED |
| MRMonaco Rv | Eugene | OR | Plastics and Rubber Products Manufacturing326130 | — | ◇ UNVERIFIED |
| MRMonaco Rv, LLC (formerly Navistar Rv) | Coburg | OR | Transportation Equipment Manufacturing336213 | — | ◇ UNVERIFIED |
| MVMountain View Seed Company | Salem | OR | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| MWMountain West Products | Pilot Rock | OR | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| MAMount Angel Abbey | Mount Angel | OR | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MHMount Hood Chemical Corporation | Portland | OR | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MPMulti-craft Plastics | Portland | OR | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MPMurphy Plywood Sutherlin | Sutherlin | OR | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
