| M & M FREIGHT LLCPortland, OR | 1949948 | 7 |
| M & M POTATO INCHermiston, OR | 577051 | 9 |
| M A C TRUCKING INCTroutdale, OR | 11103 | 2 |
| M AND G ENTERPRISES LLCSandy, OR | 4436046 | 1 |
| M MILLERS TRANSPORT LLCSandy, OR | 4432867 | 3 |
| M&D TRUCKING LIMITED LIABILITY COMPANYWilsonville, OR | 3674274 | 1 |
| MA-GATE TRANSPORTATION LLCPortland, OR | 3343667 | 1 |
| MAESTRE TRANSPORT LLCHermiston, OR | 706097 | 1 |
| MALLORIES LLCSilverton, OR | 2505498 | 10 |
| MARK K STAFFORDPrineville, OR | 750266 | 14 |
| MARSON TRUCKING INCMolalla, OR | 244711 | 23 |
| MARTIN TRANSPORTATION COMPANYWhite City, OR | 647008 | 18 |
| MATIN EXPRESS LLCTigard, OR | 4146812 | 2 |
| MAX EXPRESS INCPortland, OR | 4486099 | 1 |
| MAYOW TRANSPORT LLCPortland, OR | 3527237 | 1 |
| MCCRACKEN MOTOR FREIGHT INCPortland, OR | 11087 | 22 |
| MEALUE EXCAVATING INCSalem, OR | 790470 | 1 |
| MENDOZA TRANSPORTATION COMPANY LLCAlbany, OR | 2070559 | 5 |
| MENESES - HAULING & CARPORTS LLCSalem, OR | 3174425 | 1 |
| MERAZ TRUCKING EXPRESS LLCSalem, OR | 2949513 | 1 |
| MGMC LLCMedford, OR | 4428479 | 19 |
| MH EXPRESS LLCPortland, OR | 4031163 | 5 |
| MICHAEL J TODD JRKlamath Falls, OR | 2409407 | 1 |
| MICHAEL L WOFFORDRoseburg, OR | 892869 | 3 |
| MICHAEL N COXMerrill, OR | 1592589 | 2 |
| MICK TRUCKING LLCRedmond, OR | 2956008 | 5 |
| MILLER FREIGHTLINES LLCRedmond, OR | 4027725 | 1 |
| MILLER TIMBER SERVICES INCPhilomath, OR | 769373 | 40 |
| MILLSTONE INDUSTRIES LLCSalem, OR | 4416270 | 2 |
| MINERAL CREEK LOGGING HAULING LLCEagle Point, OR | 2089903 | 12 |
| MINHAS TRUCKING LLCReedsport, OR | 3069759 | 15 |
| MJ VIRK TRUCKING LLCLebanon, OR | 4206973 | 1 |
| MNGOYA TRANSPORT LLCBeaverton, OR | 4139882 | 2 |
| MNK TRUCKING LLCBeaverton, OR | 4505270 | 1 |
| MODCOT INCEugene, OR | 1648463 | 1 |
| MONOPOLY VIBES LLCSpringfield, OR | 4246566 | 6 |
| MOONFIRE AND SUN INCBend, OR | 3394463 | 1 |
| MOR LOGISTICS LLCPortland, OR | 4345563 | 4 |
| MORGAN INDUSTRIAL INCHillsboro, OR | 512885 | 106 |
| MOUNTAIN VALLEY GARDENS LLCKlamath Falls, OR | 2900661 | 7 |
| MR PLYWOOD INCPortland, OR | 9973 | 2 |
| MS CONSTRUCTION & REMODELING LLCPortland, OR | 2370354 | 1 |
| MT TABOR TRUCKING LLCPortland, OR | 3629741 | 1 |