| CMCore Metals Group LLC (mpm Facility) | Aurora | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| FMFewell Monument - Production Facility | Scottsburg | IN | Chemical Manufacturing325181 | — | ◇ UNVERIFIED |
| FIFidler INC | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GPGeorgia Pacific Gypsum LLC | Wheatfield | IN | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| GAGuardian Automotive Products Incorporated | Auburn | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| HRHarsco - Reed Minerals Division | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HHHi Hill Ready Mix Company | Seymour | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IGIndiana Glass Company, INC. | Dunkirk | IN | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| ILIndiana Limestone Supply Incorporated | Spencer | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| IMIrving Materials INC | Salem | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IMIrving Materials INC Bloomfield | Bloomfield | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IMIrving Materials INC Danville | Danville | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IMIrving Materials Incorporated | Brazil | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| IMIrving Materials INC Remington | Remington | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JSJones & Sons Bloomfield | Bloomfield | IN | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| KIKeramos INC | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327113 | — | ◇ UNVERIFIED |
| LCLippert Components INC. Plant 119 | Bristol | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| MIMenard Incorporated | Terre Haute | IN | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| MMMeyer Material CO Middlebury Ready Mix Plant | Middlebury | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMeyer Material CO Warsaw Ready Mix Plant | Warsaw | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NANorth American Refractories (narco) | Gary | IN | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| NBNorthfield Block Company | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OCOzinga Cement Incorporated Contractor of Cleveland-cliffs Bu | Burns Harbor | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete - Bremen | Bremen | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete - Elkhart E | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete - Gary | Gary | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OROzinga Ready Mix Concrete INC. - South Bend | South Bend | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Concrete-wheatfield | Wheatfield | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OROzinga Ready-mix Goshen | Goshen | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PSPhoenix Services LLC | Chesterton | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| PUPlycem USA Incorporated | Terre Haute | IN | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| PIPpg Industries | Kokomo | IN | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| QIQuikrete - Indianapolis, in Plant | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| RERetek Engineering Solutions LLC Dba Anc | Elkhart | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| RCRichmond Concrete Richmond Plant Division of Ernst Enterprises | Richmond | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RARieter Automotive North America | Lowell | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| RGRinker Greenfield Pipe | Greenfield | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SGSchott Gemtron Corporation | Vincennes | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| SHSchott Home Tech North America, INC. | Vincennes | IN | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| SGShelby Gravel Incorporated | Columbus | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMShelby Materials | Westfield | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMShelby Materials Incorporated | Indianapolis | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SGSms Group Incorporated | Gary | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete LLC Plant #212 | Aurora | IN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSynergy Management | Monon | IN | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| TATrans Agg,inc. Dba Gibbco, INC. | Lawrenceburg | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| 3W325 Wheatfield Plant | Wheatfield | IN | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| 3P355 Plymouth | Plymouth | 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 |
| TH"4618 - Terre Haute Concrete Plant" | Terre Haute | IN | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
