| GRGreat River Ready Mix | Hamilton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GCGrundy CO Redi-mix | Plano | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GIGtc International | Chicago | IL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| HPHaeger Potteries of Macomb, INC | Macomb | IL | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| HRHahn Ready Mix CO | Aledo | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HCHamilton County Concrete INC | Mcleansboro | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HWHarry W Kuhn INC | West Chicago | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HAHayes Abrasives INC | Hillsboro | IL | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| HMHeckett Multiserv-plant 45 | Chicago | IL | Nonmetallic Mineral Product Manufacturing327000 | — | ◇ UNVERIFIED |
| HFHenry Frerk Sons INC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HNHenry Nelch & Son CO INC | Springfield | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HRHillsboro Ready Mix Div of Mid-illinois Concrete | Hillsboro | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HMHj Mohr & Sons CO | Oak Park | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC | Elvaston | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Elwin | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| IIImi Illinois | Clinton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IIImi Illinois, LLC | Tuscola | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ICInfo Corner Materials INC | Springfield | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IMIrving Materials INC | Mount Carmel | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JAJones and Son INC | Lawrenceville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KCKendall County Concrete Crushing INC | Bristol | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KCKendall County Concrete INC | Aurora | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KCK-five Construction INC | North Aurora | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KBKienstra Block & Brick LLC | Wood River | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | New Berlin | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | Springfield | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LSLone Star Industries INC | Oglesby | IL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| LALotton Art Glass | Crete | IL | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Rock Island | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMagneco | Addison | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MAMarathon Ashland Petroleum LLC | Robinson | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MGMertel Gravel CO | Peru | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Harvard | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Huntley | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Marengo | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Belvidere | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Mchenry | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO | Northbrook | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMid Il Concrete INC Dba Clark County Ready Mix | Martinsville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMid Illinois Concrete - Effingham Ready Mix | Effingham | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMid-illinois Concrete INC | Effingham | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMiller & CO | Seneca | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| MRMillers Ready-mix LLC | South Chicago Heights | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMinnick Illinois LLC | Joliet | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| MCMishawaka Concrete & Asphalt Recycling | Mccook | IL | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
 Mississippi Lime CO | Prairie Du Rocher | IL | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| MCMoline Consumers CO - R/m Concrete Div | Moline | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MPMt Pulaski Products LLC | Mount Pulaski | IL | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| NRNaperville Ready Mix INC | Naperville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NBNarvick Brothers Lumber CO INC | Channahon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
