| LMLin-kris Mfg INC | Fairmont | WV | — | ◇ UNVERIFIED |
| LJLittle & Jenkins Rebuilders | Roanoke Rapids | NC | — | ◇ UNVERIFIED |
| LMLkq Metro INC | Caseyville | IL | — | ◇ UNVERIFIED |
| LLLog Logistics | Freeburg | IL | — | ◇ UNVERIFIED |
| LILoparex INC | Bedford Park | IL | — | ◇ UNVERIFIED |
| LMLouise Mcwhorter | Rankin | IL | — | ◇ UNVERIFIED |
| LTLucent Technologies Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| LPLydia Pinkham Trust | Lynn | MA | — | ◇ UNVERIFIED |
| MAMacks Auto Recycling | Urbana | IL | — | ◇ UNVERIFIED |
| MUMagnequench Ug | Valparaiso | IN | — | ◇ UNVERIFIED |
| MSMagnetic Separation Systems, INC. | Nashville | TN | — | ◇ UNVERIFIED |
| MVMahomet, Village of | Mahomet | IL | — | ◇ UNVERIFIED |
| MJMalone Jason & Mandy | Jewett | IL | — | ◇ UNVERIFIED |
| MVMariah Vision 3 Entertainment Incorporated | Virginia Beach | VA | — | ◇ UNVERIFIED |
| MFMarine Floats CORP | Tacoma | WA | — | ◇ UNVERIFIED |
| MMMarine Material Handling CORP | Lemont | IL | — | ◇ UNVERIFIED |
| MGMarsha Grubb | Shelbyville | IL | — | ◇ UNVERIFIED |
| MMartinizing | Palatine | IL | — | ◇ UNVERIFIED |
| MKMary Kay Abts | Pekin | IL | — | ◇ UNVERIFIED |
| MCMason Candlelight | Middlesex | NJ | — | ◇ UNVERIFIED |
| MMMason Mfg INC | Decatur | IL | — | ◇ UNVERIFIED |
| MEMassac Environmental Tech INC | Centralia | IL | — | ◇ UNVERIFIED |
| MCMassasoit Community College | Canton | MA | — | ◇ UNVERIFIED |
| MHMassdot Highway Division | Boston | MA | — | ◇ UNVERIFIED |
| MEMathis Excavating | Du Quoin | IL | — | ◇ UNVERIFIED |
| MLMatt Leigh | Pontiac | IL | — | ◇ UNVERIFIED |
| MCMaxim Crane Works LP | Nitro | WV | — | ◇ UNVERIFIED |
| MMMcdonald Mfg INC | Artesia | CA | — | ◇ UNVERIFIED |
| MPMchenry Public Works Garage | Mchenry | IL | — | ◇ UNVERIFIED |
| MIMeadowvale INC | Sandwich | IL | — | ◇ UNVERIFIED |
| MFMedora Fs, INC. | Medora | IL | — | ◇ UNVERIFIED |
| MLMedranos Landscape INC | Rockford | IL | — | ◇ UNVERIFIED |
| MTMeioco Terminal | Ashkum | IL | — | ◇ UNVERIFIED |
| MIMerkle-korff Industries- Plant 3 | Des Plaines | IL | — | ◇ UNVERIFIED |
| MAMerryman Aggregates | Harvard | IL | — | ◇ UNVERIFIED |
| MAMerryman Aggregates LLC | Woodstock | IL | — | ◇ UNVERIFIED |
| MEMerryman Excavation INC | Woodstock | IL | — | ◇ UNVERIFIED |
| MMMetal Management Midwest INC | Bedford Park | IL | — | ◇ UNVERIFIED |
| MTMetrolink Transit | Rock Island | IL | — | ◇ UNVERIFIED |
| MAMetropolis Airport | Metropolis | IL | — | ◇ UNVERIFIED |
| MPMetropolitan Pier & Exposition Authority | Chicago | IL | — | ◇ UNVERIFIED |
| MMMeyer Materials CO | Crystal Lake | IL | — | ◇ UNVERIFIED |
| MMMhc Machining Division - Glen | Glenwood | MN | — | ◇ UNVERIFIED |
| MRMicrosoft Redmond 17760 Facility | Redmond | WA | — | ◇ UNVERIFIED |
| MAMicrotron Abrasives, INC. | Pineville | NC | — | ◇ UNVERIFIED |
| MAMid America Sand & Gravel CO | Mahomet | IL | — | ◇ UNVERIFIED |
| MAMid America Sand & Gravel CO | Champaign | IL | — | ◇ UNVERIFIED |
| MRMiddleboro Recycling | Middleborough | MA | — | ◇ UNVERIFIED |
| MAMidway Airport Amc Buildings | Chicago | IL | — | ◇ UNVERIFIED |
| MCMidwest Cement Products | Woosung | IL | — | ◇ UNVERIFIED |
| MEMidwest Electronic | Ellsworth | IL | — | ◇ UNVERIFIED |
| MRMidwest Rem Enterprises INC | Chicago | IL | — | ◇ UNVERIFIED |
| MSMidwest Sanitary Service INC | Wood River | IL | — | ◇ UNVERIFIED |
| MSMidwest Soil Remediation | Lockport | IL | — | ◇ UNVERIFIED |
| MFMike Fuhrman, Village President | Waynesville | IL | — | ◇ UNVERIFIED |
| MRMilam Recycling & Disposal | East Saint Louis | IL | — | ◇ UNVERIFIED |
| MMMinee Monesse Golf Course | Momence | IL | — | ◇ UNVERIFIED |
 Mini Systems Incorporated | Plainville | MA | — | ◇ UNVERIFIED |
| MVMinton Ventures, LLC | Lenoir | NC | — | ◇ UNVERIFIED |
| MMMissouri Meerschaum Company | Washington | MO | — | ◇ UNVERIFIED |
| MLMixonsite LLC | Chicago | IL | — | ◇ UNVERIFIED |
| MAMizzonis Auto Body INC. | Lodi | NJ | — | ◇ UNVERIFIED |
| MLM & L Oil CO INC | Cisne | IL | — | ◇ UNVERIFIED |
| MHMontec Hydraulics/carmichaels | Carmichaels | PA | — | ◇ UNVERIFIED |
| MPMoore Painting CO | Alton | IL | — | ◇ UNVERIFIED |
| MTMoorestown Twp Water Pollution Control Plant | Moorestown | NJ | — | ◇ UNVERIFIED |
| MCMorris Community Landfill | Morris | IL | — | ◇ UNVERIFIED |
| MMMorris Material Handling INC | Oak Creek | WI | — | ◇ UNVERIFIED |
| MMMorris Material Handling - Kone Cranes | Franklin | OH | — | ◇ UNVERIFIED |
| MGMorrison Grease Recycling INC | Morrison | IL | — | ◇ UNVERIFIED |
| MSMorton Supplies INC | Morton | IL | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | — | ◇ UNVERIFIED |
| MFMr. Foamer, INC. | Tamarac | FL | — | ◇ UNVERIFIED |
| MRM&r Rubber CO | Belvidere | IL | — | ◇ UNVERIFIED |
| MPMt Prospect Mail Pharmacy | Mount Prospect | IL | — | ◇ UNVERIFIED |
| MCMulch Center the | North Chicago | IL | — | ◇ UNVERIFIED |
| MCMulti / County Landfill | Villa Grove | IL | — | ◇ UNVERIFIED |
 Mustang Survival Mfg., INC. | Elizabeth | WV | — | ◇ UNVERIFIED |
| NLNathan Lagin CO INC | Westbury | NY | — | ◇ UNVERIFIED |
| NCNational Chemical | Plainfield | IL | — | ◇ UNVERIFIED |
| NCNational Crane CORP | Waverly | NE | — | ◇ UNVERIFIED |
| NSNational Scale Technology | Huntsville | AL | — | ◇ UNVERIFIED |
| NENatural Environmental Protection | Pomona | CA | — | ◇ UNVERIFIED |
| NGNatural Gas Pipeline CO of America | Chicago Heights | IL | — | ◇ UNVERIFIED |
| NGNatural Gas Pipeline CO Station 206a | Altamont | IL | — | ◇ UNVERIFIED |
| NDNc Dps - Johnston Paint Plant | Smithfield | NC | — | ◇ UNVERIFIED |
| NCNeri Contractors & Excavators INC | Lake in the Hills | IL | — | ◇ UNVERIFIED |
| NCNestle Clinical Nutrition | Hopkins Park | IL | — | ◇ UNVERIFIED |
| NENew England Tele | Lawrence | MA | — | ◇ UNVERIFIED |
| NCNichem CORP | Chicago | IL | — | ◇ UNVERIFIED |
| NTNoah's Trading Post | Rockford | IL | — | ◇ UNVERIFIED |
| NCNorco Cleaners INC | Dolton | IL | — | ◇ UNVERIFIED |
| NANorth American Fastener CORP | Bridgeport | WV | — | ◇ UNVERIFIED |
| NANorth American Sterilization & Packaging CO INC | Hardyston Twp | NJ | — | ◇ UNVERIFIED |
| NANorth American Stevedoring CO (formerly Ceres) | Chicago | IL | — | ◇ UNVERIFIED |
| NPNorth Pacific Industrial Coatings Kent | Kent | WA | — | ◇ UNVERIFIED |
| NCNorthrop CORP Electronics Systems Div | Hawthorne | CA | — | ◇ UNVERIFIED |
| NVNorwalk Vault | Saint Louis | MO | — | ◇ UNVERIFIED |
 Novamet Specialty Products CORP | Wyckoff | NJ | — | ◇ UNVERIFIED |
| NBNtn Bearing | Des Plaines | IL | — | ◇ UNVERIFIED |
