| QIQuality Insulators, INC. | Green Bay | WI | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| QBQuanex Building Products | Rice Lake | WI | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| RPRev's Pre-Cast Concrete Corp. | Waukesha | WI | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RRRivcrete Ready Mix, LLC | Milwaukee | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RGRK Group, LLC | Slinger | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SSSilvermine Stone Company | Eau Claire | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SRSonag Ready Mix | Menomonee Falls | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SISpancrete Industries, INC. | Menomonee Falls | WI | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SISpancrete Industries - Waukesha | Waukesha | WI | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SCStone Creations LLC | Shawano | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SCStone Creations LLC | Shawano | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SGSummit Granite USA LLC | West Allis | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TSThelen Sand and Gravel-genoa City Plant | Genoa City | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| TLThe Lurie Companies, INC. | Milwaukee | WI | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| TIThermoset INC | Mequon | WI | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| TJThermoset - Jackson Facility | Jackson | WI | Nonmetallic Mineral Product Manufacturing327125 | — | ◇ UNVERIFIED |
| TSTrend Stone Surfaces LLC | Eau Claire | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| VCVanDerVart Concrete Products, LLC | Sheboygan | WI | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| VCVanDerVart Concrete Products, LLC | Sheboygan | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WTWausau Tile INC | Wausau | WI | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| WRWingra Redi Mix | Waunakee | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WGWisconsin Granite Design LLC | Oak Creek | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| WGWisconsin Granite LLC | Mcfarland | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| WSWisconsin Silos INC | Plover | WI | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
