| MCMaster Craft Millwork INC | Denver | CO | — | ◇ UNVERIFIED |
| MLMatelski Lumber Company | Boyne Falls | MI | — | ◇ UNVERIFIED |
| MWMay Wood Industries, INC. | Alsip | IL | — | ◇ UNVERIFIED |
| MTMcardle Timber Enterprises, INC. | Brewton | AL | — | ◇ UNVERIFIED |
| MSMcbride Sawmill LLC | Mountain View | MO | — | ◇ UNVERIFIED |
| MMMcCain Mills, inc. | Plant City | FL | — | ◇ UNVERIFIED |
| MFMcclain Forest Products-alton | Alton | MO | — | ◇ UNVERIFIED |
| MPMccormick Piling & Lumber CO | Saint Helens | OR | — | ◇ UNVERIFIED |
| MLMcdowell Lumber Company, INC | Asheboro | NC | — | ◇ UNVERIFIED |
| MCMcfarland Cascade Pole & Lumber CO | Warren | OR | — | ◇ UNVERIFIED |
| MEMcquown Enterprises, LLC. | Sonoma | CA | — | ◇ UNVERIFIED |
| MLMcshan Lumber Company, INC. | Mc Shan | AL | — | ◇ UNVERIFIED |
| MWMc Wood, LLC | Pontotoc | MS | — | ◇ UNVERIFIED |
| MIMdlg, INC. Dba Phenix Lumber CO. & John M. Dudley | Phenix City | AL | — | ◇ UNVERIFIED |
| MWMeador Wood Products INC. | Flat Top | WV | — | ◇ UNVERIFIED |
| MRMeadow River Hardwood Lumber Company, LLC | Rainelle | WV | — | ◇ UNVERIFIED |
| MWMead Westvaco Corporation | Cottonton | AL | — | ◇ UNVERIFIED |
| MLMebane Lumber Company Incorporated | Mebane | NC | — | ◇ UNVERIFIED |
| MFMeisters Forest Products | Black River Falls | WI | — | ◇ UNVERIFIED |
| MFMendocino Forest Products CO. Llc, Calpella Distribution Center | Calpella | CA | — | ◇ UNVERIFIED |
| MTMenominee Tribal Enterprises | Neopit | WI | — | ◇ UNVERIFIED |
| MHMenzner Hardwoods CO. | Marathon | WI | — | ◇ UNVERIFIED |
| MLMenzner Lumber and Supply Company | Walnut Grove | KY | — | ◇ UNVERIFIED |
| MSMerchandiser & Shipping Product | Leola | AR | — | ◇ UNVERIFIED |
| MBMettam Brothers Lumber Company, LLC | Saint Clair | PA | — | ◇ UNVERIFIED |
| MWMfp Willits | Willits | CA | — | ◇ UNVERIFIED |
| MGM G Building Materials | San Antonio | TX | — | ◇ UNVERIFIED |
| MAMichael Allen White, Jr. | Mount Vernon | OR | — | ◇ UNVERIFIED |
| MAMid America Hardwoods-mid America Hardwoods | Sarcoxie | MO | — | ◇ UNVERIFIED |
| MHMidwest Hardwoods Corporation | Reedsburg | WI | — | ◇ UNVERIFIED |
| MWMidwest Walnut Co-midwest Walnut CO | Willow Springs | MO | — | ◇ UNVERIFIED |
| MWMidwest Walnut Company Iowa | Willow Springs | MO | — | ◇ UNVERIFIED |
| MLMiller Logging, INC | Fredericksburg | OH | — | ◇ UNVERIFIED |
| MCMiller's Custom Sawing LLC | Middlefield | OH | — | ◇ UNVERIFIED |
| MSMiller Shingle CO INC | Snoqualmie | WA | — | ◇ UNVERIFIED |
| MWMingo Wood Products LLC | Cabin Creek | WV | — | ◇ UNVERIFIED |
| MFMission Forest Products Corinth Sawmill | Corinth | MS | — | ◇ UNVERIFIED |
| MLMissouri-pacific Lumber CO Inc-missouri-pacific Lumber CO INC | Fayette | MO | — | ◇ UNVERIFIED |
| MVMister V's Woodworks | Weslaco | TX | — | ◇ UNVERIFIED |
| MLM L Cedar Products INC | Forks | WA | — | ◇ UNVERIFIED |
| MOMlc of Wakefield INC | Wakefield | MI | — | ◇ UNVERIFIED |
| MOMonroe Oak INC | Sheridan | OR | — | ◇ UNVERIFIED |
| MMMoore Mill & Lumber CO | Bandon | OR | — | ◇ UNVERIFIED |
| MMMoore & Moore Sawmill | Doniphan | MO | — | ◇ UNVERIFIED |
| MTMorgan Timber Products | Fort Collins | CO | — | ◇ UNVERIFIED |
| MTMorganton Timber Products INC | Morganton | NC | — | ◇ UNVERIFIED |
| MOMountain Oak Mill | Hamilton | GA | — | ◇ UNVERIFIED |
| MTMountain Top Timber Products LLC | Dungannon | VA | — | ◇ UNVERIFIED |
| MVMountain View Lumber | Punxsutawney | PA | — | ◇ UNVERIFIED |
| MPMo-wood Products INC. | California | MO | — | ◇ UNVERIFIED |
