| 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 |
| MTMidwest Tankworks a Div Mississippi Tank CO | Vincennes | IN | — | ◇ UNVERIFIED |
| MFMike Fuhrman, Village President | Waynesville | IL | — | ◇ UNVERIFIED |
| MAMikron Assembly Technology | Aurora | CO | — | ◇ UNVERIFIED |
| MRMilam Recycling & Disposal | East Saint Louis | IL | — | ◇ UNVERIFIED |
| MOMilroy Optical | Tampa | FL | — | ◇ 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 |
| MIMjc, INC. | Acworth | GA | — | ◇ UNVERIFIED |
| MSMkm Sarasota LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| MLM & L Oil CO INC | Cisne | IL | — | ◇ UNVERIFIED |
| MCModern Custom Fabrication INC | Fresno | CA | — | ◇ UNVERIFIED |
| MWModern Welding CO of Kentucky INC | War Creek | KY | — | ◇ UNVERIFIED |
| MMModine Mfg/laporte/pemberville | La Porte | IN | — | ◇ UNVERIFIED |
| MHMontec Hydraulics/carmichaels | Carmichaels | PA | — | ◇ UNVERIFIED |
| MMMontgomery Metal Craft INC | Springfield | MO | — | ◇ UNVERIFIED |
| MPMoore Painting CO | Alton | IL | — | ◇ UNVERIFIED |
| MTMoorestown Twp Water Pollution Control Plant | Moorestown | NJ | — | ◇ UNVERIFIED |
| MCMorris Community Landfill | Morris | IL | — | ◇ UNVERIFIED |
| MGMorrison Grease Recycling INC | Morrison | IL | — | ◇ UNVERIFIED |
| MTMorrison Textiles Machinery CO | Fort Lawn | SC | — | ◇ UNVERIFIED |
| MMMorristown Memorial Hospital | Morristown | NJ | — | ◇ UNVERIFIED |
| MSMorton Supplies INC | Morton | IL | — | ◇ UNVERIFIED |
| MFMountaineer Fabricators INC | Nitro | WV | — | ◇ UNVERIFIED |
| MTMpl Technologies INC | Franklin Park | 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 |
| MCMurphy Consolidated Industries INC | Follansbee | WV | — | ◇ UNVERIFIED |
| MTMusculoskeletal Transplant Foundation | Edison | NJ | — | ◇ UNVERIFIED |
 Mustang Survival Mfg., INC. | Elizabeth | WV | — | ◇ UNVERIFIED |
| NPNapa Pipe CORP | Napa | CA | — | ◇ UNVERIFIED |
| NLNathan Lagin CO INC | Westbury | NY | — | ◇ UNVERIFIED |
| NCNational Chemical | Plainfield | IL | — | ◇ UNVERIFIED |
| NFNational Feedscrew & Machinery | Massillon | OH | — | ◇ UNVERIFIED |
| NSNational Scale Technology | Huntsville | AL | — | ◇ UNVERIFIED |
| NTNational Tube Form | Fort Wayne | IN | — | ◇ 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 |
| NGNelson Global - Fortune Circle | Indianapolis | IN | — | ◇ UNVERIFIED |
| NTNeograft Technologies | Taunton | MA | — | ◇ UNVERIFIED |
| NCNeri Contractors & Excavators INC | Lake in the Hills | IL | — | ◇ UNVERIFIED |
| NCNestle Clinical Nutrition | Hopkins Park | IL | — | ◇ UNVERIFIED |
| NTNewberry Tanks and Equipment, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| NENew England Tele | Lawrence | MA | — | ◇ UNVERIFIED |
| NCNichem CORP | Chicago | IL | — | ◇ UNVERIFIED |
| NTNoah's Trading Post | Rockford | IL | — | ◇ UNVERIFIED |
| NCNooter Corp-nooter CORP | Saint Louis | MO | — | ◇ UNVERIFIED |
| NCNorco Cleaners INC | Dolton | IL | — | ◇ UNVERIFIED |
| NANorth American Construction Services, LTD. | Birmingham | AL | — | ◇ 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 |
| NVNorwalk Vault | Saint Louis | MO | — | ◇ UNVERIFIED |
| NANov Ameron Tulsa Pole Products Welding & Fabrication | Tulsa | OK | — | ◇ UNVERIFIED |
 Novamet Specialty Products CORP | Wyckoff | NJ | — | ◇ UNVERIFIED |
| NINov Intelliserv. | Provo | UT | — | ◇ UNVERIFIED |
| NRNst Realty LLC | Niles | MI | — | ◇ UNVERIFIED |
| NBNtn Bearing | Des Plaines | IL | — | ◇ UNVERIFIED |
| NNtt/verio | Chicago | IL | — | ◇ UNVERIFIED |
| NCNuclear Containers, Inc., Esp/cbc Div. | Elizabethton | TN | — | ◇ UNVERIFIED |
| ODOakfield Development | Rockton | IL | — | ◇ UNVERIFIED |
| OPOak Park Village of | Oak Park | IL | — | ◇ UNVERIFIED |
| OROak River Cleaners | Oak Park | IL | — | ◇ UNVERIFIED |
| OROak River Cleaners | Westchester | IL | — | ◇ UNVERIFIED |
| OLOctave Labs LLC | Pleasant Hill | OR | — | ◇ UNVERIFIED |
| OLOctave Labs LLC | Springfield | OR | — | ◇ UNVERIFIED |
| OTO'day Tank and Steel Company | Fargo | ND | — | ◇ UNVERIFIED |
| OIOfs International Houston Plant | Houston | TX | — | ◇ UNVERIFIED |
| OOhmstede | La Porte | TX | — | ◇ UNVERIFIED |
| OOldcastle | Elmer | NJ | — | ◇ UNVERIFIED |
| OSOld School Market INC | Sullivan | IL | — | ◇ UNVERIFIED |
| OGOlen G. Parkhill Owner of Kendallwood Estates | Mahomet | IL | — | ◇ UNVERIFIED |
| OAO'mara Ag Services INC | Des Moines | IA | — | ◇ UNVERIFIED |
| ODOmega Demolition CORP | Rosemont | IL | — | ◇ UNVERIFIED |
| OIOptical Integrity INC | Panama City Beach | FL | — | ◇ UNVERIFIED |
| OROquawka River Terminal | Gladstone | IL | — | ◇ UNVERIFIED |
| OSOsf St James Hospital | Pontiac | IL | — | ◇ UNVERIFIED |
| OEOster Enterprises INC | Lemont | IL | — | ◇ UNVERIFIED |
| OHOttobock Healthcare, LP | Louisville | KY | — | ◇ UNVERIFIED |
| OMOwen Manufacturing INC | Owen | WI | — | ◇ UNVERIFIED |
| OCOxy-dry CORP | Arlington Heights | IL | — | ◇ UNVERIFIED |
| OBOzinga Bros INC | Chicago | IL | — | ◇ UNVERIFIED |
| POPact One Llc/ W Norriton Twp | Trooper | PA | — | ◇ UNVERIFIED |
