| RMReed Minerals, LLC | Gary | IN | Nonmetallic Mineral Product Manufacturing327910 | 1-19 | ● ACTIVE |
S & S Optical CO INC | New Haven | IN | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ● ACTIVE |
| OKOpta- Kingsbury | Kingsbury | IN | Nonmetallic Mineral Product Manufacturing327410 | 1-19 | ◐ LIKELY ACTIVE |
| RRRubicon Refractories Inc | Hammond | IN | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◐ LIKELY ACTIVE |
| COCoast Oem LLC | Kokomo | IN | Nonmetallic Mineral Product Manufacturing327112 | 1-19 | ◇ UNVERIFIED |
| ARAdvance Ready Mix Concrete, Inc Plant 6 | Jeffersonville | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| ECElkhart (KIK Custom Products) | Elkhart | IN | Chemical Manufacturing325998 | 1-19 | ◐ LIKELY ACTIVE |
| AMAllen Monument Company, INC | Crawfordsville | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| 3W325 Wheatfield Plant | Wheatfield | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| 3O363 Ozinga Ready Mix Concrete, Inc. Elkhart | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327310 | 1-19 | ◐ LIKELY ACTIVE |
| 7I704 Indiana West General | Portage | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| ARAdvance Ready Mix Concrete, Inc Mobile Plant 12 | Jeffersonville | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CIC2 Indiana Evansville Maxwell Avenue | Evansville | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| CIC2 Indiana Fort Wayne Coliseum Boulevard | Fort Wayne | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| CIC2 Indiana Indianapolis 33rd Street | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| CECutting Edge Countertops, Inc. - Noblesville | Noblesville | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| E3Elkhart 364 | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| GGreenwood | Greenwood | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| IRINDCP Rinker Materials | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327332 | 1-19 | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Company - Eureka Mill | Bloomington | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| ILIndiana Limestone Company Victor Site | Bloomington | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| IMIN - Morris Street 106 | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| OEOPTA East Chicago Plant | East Chicago | IN | Nonmetallic Mineral Product Manufacturing327992 | 1-19 | ◐ LIKELY ACTIVE |
| PMPatten Monument of Indiana | Warsaw | IN | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| PPPortland Plant 114 | Portland | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| S1StairSupplies-Plant 1W, 1614 Eisenhower Dr. North | Goshen | IN | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ◐ LIKELY ACTIVE |
| WBWilbert Burial Vault of Ft. Branch | Fort Branch | IN | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| WBWilbert Burial Vault of Ft. Branch | Ft. Branch | IN | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| PRPeoples Ready Mix INC | Kentland | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| WMWimmer Manufacturing, Inc. | New Castle | IN | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◇ UNVERIFIED |