| NNNew Ngc INC. D/b/a National Gypsum Compa | Clinton | IN | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| NRNipsco Rm Schahfer Peaker Plant | Wheatfield | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| NNorthfield-indianapolis | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| OBOzinga Brothers Ready Mix Concrete | Crown Point | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| PSPhoenix Services LLC Dba Metal Services | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| PFProform Finishing Products, LLC | Rensselaer | IN | Nonmetallic Mineral Product Manufacturing327420 | — | ◐ LIKELY ACTIVE |
| UIUni-ref Incorporated | Brookville | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| TMThermafiber Manufacturing Plant | Wabash | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| ECElite Crete Systems Incorporated | Valparaiso | IN | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| MSMajestic Stone Imports | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
Maxi-blast INC | South Bend | IN | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| CDContinental Diamond Tool Corporation | New Haven | IN | Nonmetallic Mineral Product Manufacturing327910 | 100-499 | ◐ LIKELY ACTIVE |
| DCDubois County Block & Brick Incorporated | Jasper | IN | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| ILIsoa LLC Dba Insulation Specialties of America | Wanatah | IN | Nonmetallic Mineral Product Manufacturing327999 | 20-99 | ◐ LIKELY ACTIVE |
| OEOmega Enterprises, INC. | Winchester | IN | Nonmetallic Mineral Product Manufacturing327213 | 20-99 | ◐ LIKELY ACTIVE |
| RRRubicon Refractories Inc | Hammond | IN | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| SLServaas Laboratories Incorporated | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327999 | 100-499 | ◐ LIKELY ACTIVE |
| COCoast Oem LLC | Kokomo | IN | Nonmetallic Mineral Product Manufacturing327112 | 1-19 | ◇ UNVERIFIED |
| 1A104532 - Aia Countertops | Syracuse | IN | Nonmetallic Mineral Product Manufacturing327991 | 100-499 | ◐ LIKELY ACTIVE |
| 1A106552 - Ardagh Glass Winchester | Winchester | IN | Nonmetallic Mineral Product Manufacturing327213 | 100-499 | ◐ LIKELY ACTIVE |
| ARAdvance Ready Mix Concrete, Inc Plant 6 | Jeffersonville | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| AIATMI Indy, LLC | Greenfield | IN | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| BLBedford Limestone Suppliers Group | Bedford | IN | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| BSBeemsterboer Slag CORP Contractor of Ar | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| CGCarlex Glass America LLC | Ligonier | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| ECElkhart (KIK Custom Products) | Elkhart | IN | Chemical Manufacturing325998 | 1-19 | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials US Cement LLC | Sellersburg | IN | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| HSHog Slat INC | Universal | IN | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Acquisition LLC Dba Indiana Limestone CO INC Central | Bloomington | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Company - Empire Mill | Oolitic | IN | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| JSJ Shaw Industries LLC Dba Kokomo Opalescent Glass Company | Kokomo | IN | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| MCModified Concrete Suppliers, LLC | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| NNoblesville | Noblesville | IN | Wood Product Manufacturing321999 | 20-99 | ◐ LIKELY ACTIVE |
| RMRinker Materials Concrete Pipe Division | Whitestown | IN | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| RGRogers Group Newton County Stone | Kentland | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| SGStafford Gravel Incorporated | Butler | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| TCTexaCon Cut Stone | Bloomington | IN | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| TETri Eagle LLC | Kingsford Heights | IN | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| TGTrulite Glass and Aluminum Solutions | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| UGUS Gypsum Shoals | Shoals | IN | Nonmetallic Mineral Product Manufacturing327420 | 100-499 | ◐ LIKELY ACTIVE |
| 1A106960 - Ardagh Glass INC | Dunkirk | IN | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| APAbrasive Processing & Technologies, LLC. | Fortville | IN | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| AMAllen Monument Company, INC | Crawfordsville | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| BMButler Mill Service Company | Butler | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| CICardinal Ig | Fremont | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| CCColumbia City Mill Services | Columbia City | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| FIFidler INC | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| GSGeneral Shale Brick INC | Mooresville | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| IPImi Plant 101 | Greenfield | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Company Incorporated - Empire Quarry | Oolitic | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |