| LULeonard's Unit Step of Moline INC | Carbon Cliff | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LMLewis Memorial Christian Village | Springfield | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| LWLincoln Way Materials | Dixon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LWLincoln Way Materials CO | Dixon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LGLocal Glass Studio LLC | Glen Ellyn | IL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MGMack Glass LLC | Champaign | IL | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Rock Island | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Milan | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Hennepin | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Milan | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMManley Monuments | Lincoln | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MTMark Twain Redi-mix INC | Rantoul | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMarquis Concrete & Stone LLC | Hennepin | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMartin Materials CORP | Rochelle | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MAMarvel Abrasive Products, LLC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| MRMattoon-charleston Ready Mix | Charleston | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMaurice Moore Memorials | Chicago Ridge | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MCMayan Concrete INC | Matteson | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMbi Construction | Effingham | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Newton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Mattoon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMbi Construction INC | Newton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMbi Constuction INC | Xenia | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMccarthy Improvement CO | East Moline | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MEMcconnell Exc | Quincy | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMclean County Concrete CO | Bloomington | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MLMemorialpics LLC | Peoria | IL | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| MSMeno Stone CO. INC. | Lemont | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MCMetro Concrete LLC | Lebanon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMetro Concrete Products INC | South Roxana | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMetro Materials INC | Shiloh | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MRMetropolis Ready Mix | Metropolis | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MSMet South INC | Joppa | IL | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Saint Charles | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Loves Park | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Channahon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Crystal Lake | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Lake Zurich | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Bannockburn | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Park City | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO #24 | Lee | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO - Elgin Yard 41 | Elgin | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Materials CO | Machesney Park | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete | Greenville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Olney | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Mattoon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Ramsey | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Altamont | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Charleston | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MSMidwest Stone, INC. | Plainfield | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
