| ILIc Lights, LLC | Nokomis | IL | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix | Roseville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC | Dallas City | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC | Stronghurst | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIdeal Ready Mix CO INC | Little York | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IRIllini Ready Mix INC | Carbondale | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IGIllinois Granite and Marble LTD. | Elk Grove Village | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| IMIllinois Mining CORP | Romeoville | IL | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Jacksonville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Monticello | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Peoria | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Bloomington | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IVIllinois Valley Paving CO | Bloomington | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
 Indian Industries INC D/b/a US Weight | Olney | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ITInnovative Technology & Materials INC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| ICIpsen Ceramics | Pecatonica | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IMIrving Materials INC | Lawrenceville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJames Cape & Sons CO | Rochelle | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJames Cape & Sons -illinois | Addison | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJames Cape & Sons-illinois | Barrington | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJ Curry Ready Mix of Rushville INC | Astoria | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JCJ. Curry Redi-mix of Rushville, INC. | Rushville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JMJennchem Midwest, LLC | Macedonia | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JTJ.e. Tomes & Associates, INC. | Blue Island | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JPJet Precast, INC. | O'fallon | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| JCjhz cement llc | Sterling | IL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| JRJim Russell Sales INC | Benton | IL | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| JHJoe Hatzer & Son INC | Streator | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JHJoe Hatzer & Son, INC. | Streator | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JAJoliet Arsenal Portable Plant | Elwood | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JWJ W Reynolds Monument Company | Vienna | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| KTKeen Tile INC | Springfield | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| KVKelley Vault Co., INC. | Champaign | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| KCK-five Construction CO | Lemont | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KLKienstra-illinois LLC | Edwardsville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KLKienstra-illinois LLC | Alton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KLKienstra-illinois LLC | Granite City | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KLKienstra-illinois LLC | Pontoon Beach | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KIKienstra INC | Alton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KBKlueter Bros Concrete Products | Edwardsville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| KMKnauer Mod Wilbert Burial Vaul | Joliet | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| KRKotter Ready-mix | Vienna | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLahood Construction INC | Chillicothe | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLahood Construction INC | East Peoria | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LRLangheim Ready Mix INC | Girard | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Laharpe | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Macomb | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Colchester | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Beardstown | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| LFLee Farms Excavating INC | Paxton | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
