| MTMission Tool & Mfg CO INC | Hayward | CA | — | ◇ UNVERIFIED |
| MLMississippi Laser, Inc. | Stockton | IA | — | ◇ UNVERIFIED |
| MPMissouri Pressed Metals INC. | Sedalia | MO | — | ◇ UNVERIFIED |
| MMMisty Mountain Industries INC. | Mountain Home | AR | — | ◇ UNVERIFIED |
| MMiswaco | Tulsa | OK | — | ◇ UNVERIFIED |
| MDMitchell & Duce INC Dba Mitchell Bros | Buena Park | CA | — | ◇ UNVERIFIED |
| MMMitten Manufacturing | Syracuse | NY | — | ◇ UNVERIFIED |
| M1MK 1 Studio, LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| MMMk Middleton INC. | Hereford | TX | — | ◇ UNVERIFIED |
| MIMks Instruments INC Broomfield | Broomfield | CO | — | ◇ UNVERIFIED |
| MTMk Tools & Abrasives INC | Bell | CA | — | ◇ UNVERIFIED |
| MTMK Trempe Corporation | Sidney | OH | — | ◇ UNVERIFIED |
| MEMl & Es Ventures LLC | Wood Village | OR | — | ◇ UNVERIFIED |
| MEMl & Es Ventures LLC | Troutdale | OR | — | ◇ UNVERIFIED |
| MLM - L Industries INC | Rogers | MN | — | ◇ UNVERIFIED |
| MIMm Industries, INC. | Salem | OH | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MPMobile Pulley Marine Services | Mobile | AL | — | ◇ UNVERIFIED |
| MLMobilitybridge LLC | Dayton | OH | — | ◇ UNVERIFIED |
| MIMocorp INC | Elk River | MN | — | ◇ UNVERIFIED |
| MIMocorp INC | Anoka | MN | — | ◇ UNVERIFIED |
| MFModel Finishing Co/phila | Philadelphia | PA | — | ◇ UNVERIFIED |
| MEModern Equipment Company | Omaha | NE | — | ◇ UNVERIFIED |
| MFModern Fabricating INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| MFModern Faucet Mfg Company | Los Angeles | CA | — | ◇ UNVERIFIED |
Modern Machine and Metal Fabricators, INC. | Winston Salem | NC | — | ◇ UNVERIFIED |
| MMModern Mechanical Fabrication INC | Champlain | NY | — | ◇ UNVERIFIED |
| MCModineer Coatings Division South | South Bend | IN | — | ◇ UNVERIFIED |
Modine Manufacturing CO | Clinton | TN | — | ◇ UNVERIFIED |
| MMModular Mining Systems, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| MMMoffat Mine Service INC. | Craig | CO | — | ◇ UNVERIFIED |
| MMMohawk Metal Company | Eugene | OR | — | ◇ UNVERIFIED |
| MMMolt Manufacturing, INC. | Spalding | NE | — | ◇ UNVERIFIED |
| MPMonitor Products INC | Hauppauge | NY | — | ◇ UNVERIFIED |
| MSMonroe Staffing Services, LLC | Hudson | MA | — | ◇ UNVERIFIED |
| MLMonrreal-Macias LLC | Bell Gardens | CA | — | ◇ UNVERIFIED |
| MFMontell Fabrication and Rebuild, LLC | Deming | NM | — | ◇ UNVERIFIED |
| MMMontel Metals | Jeffersonville | IN | — | ◇ UNVERIFIED |
| MMMorehead Machining, INC. | Morehead | KY | — | ◇ UNVERIFIED |
| MFMorgan Fabrication | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MPMorgan Performance | Spring | TX | — | ◇ UNVERIFIED |
| MIMoritz International INC. (0370010048) | Mansfield | OH | — | ◇ UNVERIFIED |
| MIMorrill Industries, INC | Escalon | CA | — | ◇ UNVERIFIED |
| MMMorris Metal Shaping LLC | Emeryville | CA | — | ◇ UNVERIFIED |
| MMMortech Manufacturing | Azusa | CA | — | ◇ UNVERIFIED |
| MCMotor City Racks, LLC | Laurens | SC | — | ◇ UNVERIFIED |
| MFMountain Forge Inc, the | Truckee | CA | — | ◇ UNVERIFIED |
| MPMountain Performance INC | Draper | UT | — | ◇ UNVERIFIED |
| MWMpack Winthrop Corporation | Alsip | IL | — | ◇ UNVERIFIED |