| CGCardinal Glass Industries, INC. | Tomah | — | ◇ UNVERIFIED |
| CRCemstone Ready-mix, INC. | Durand | — | ◇ UNVERIFIED |
| CPCentral Processing Corporation | Eau Claire | — | ◇ UNVERIFIED |
| CTCertain Teed | Plymouth | — | ◇ UNVERIFIED |
| CSChippewa Sand CO | New Auburn | — | ◇ UNVERIFIED |
| CIConcrete Industries INC | Green Bay | — | ◇ UNVERIFIED |
| CMCounty Materials | Janesville | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Eau Claire | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Elderon | — | ◇ UNVERIFIED |
| CMCounty Materials Corporation | Marathon | — | ◇ UNVERIFIED |
| CACox Art Glass LLC | River Falls | — | ◇ UNVERIFIED |
| CICustomCreteWerks, Inc. | Racine | — | ◇ UNVERIFIED |
| DSDimension Stone, LLC | Houlton | — | ◇ UNVERIFIED |
| DSDuffek Sand & Gravel INC | Antigo | — | ◇ UNVERIFIED |
| EIEnquatics, INC. | Kiel | — | ◇ UNVERIFIED |
| FRFiberglass Reinforced Products, INC. | Exeland | — | ◇ UNVERIFIED |
| F2Flex 2020 LLC | Franklin | — | ◇ UNVERIFIED |
| FGFm Graham | Merrill | — | ◇ UNVERIFIED |
| FMFrancis Melvin, INC. | Prentice | — | ◇ UNVERIFIED |
| G7Gallery 77, LLC | Hudson | — | ◇ UNVERIFIED |
| GCGillett Cement Products INC | Gillett | — | ◇ UNVERIFIED |
| GRGleason Redi Mix, INC. | Kenosha | — | ◇ UNVERIFIED |
| GWGraymont Western Lime - Eden | Eden | — | ◇ UNVERIFIED |
| HSHalquist Stone Company, INC. | Lannon | — | ◇ UNVERIFIED |
| HOHouse of Stone INC. | Milwaukee | — | ◇ UNVERIFIED |
| HMHydraulic Mudpumps INC. | Manitowoc | — | ◇ UNVERIFIED |
| ISIndustrial Sales & Leasing, LLC | Plover | — | ◇ UNVERIFIED |
| IRIvey Red-mix | Mineral Point | — | ◇ UNVERIFIED |
| JSJohn S. Olynick, INC. | Gilman | — | ◇ UNVERIFIED |
| JSJ & S Granite and Marble LLC | Suamico | — | ◇ UNVERIFIED |
| KPKrete Partners, LLC | Brookfield | — | ◇ UNVERIFIED |
| LCLa Crosse Memorials, INC. | La Crosse | — | ◇ UNVERIFIED |
| LLafargeholcim | Green Bay | — | ◇ UNVERIFIED |
| LSLake Shore Burial Vault Co., INC. | Brookfield | — | ◇ UNVERIFIED |
| L4Lashe 4 Collective LLC | Woodruff | — | ◇ UNVERIFIED |
| LCLax Clay Investments Limited Liability Company | La Crosse | — | ◇ UNVERIFIED |
| LPLedgeview Precast Concrete INC. | Fond Du Lac | — | ◇ UNVERIFIED |
| LILycon INC | Madison | — | ◇ UNVERIFIED |
| LILycon INC - Middleton - University Ave | Middleton | — | ◇ UNVERIFIED |
| LILycon INC - Plant #10 | Sauk City | — | ◇ UNVERIFIED |
| MCMadison Crushing and Excavating Company INC | Madison | — | ◇ UNVERIFIED |
| MMMadison Materials, LLC | Madison | — | ◇ UNVERIFIED |
| MPMarik Properties LLC | Bloomer | — | ◇ UNVERIFIED |
| MPMatzke Properties LAX, LLC | La Crosse | — | ◇ UNVERIFIED |
| MLMayville Limestone INC | Mayville | — | ◇ UNVERIFIED |
| MIMcc, INC. | Green Bay | — | ◇ UNVERIFIED |
| MPMidwest Perlite Company, Inc. | Appleton | — | ◇ UNVERIFIED |
| MRMidwest Rock Tops, LLC | Madison | — | ◇ UNVERIFIED |
| NCNuvo Construction Company, INC. | Milwaukee | — | ◇ UNVERIFIED |
| OLOurdailysalt LLC | Milwaukee | — | ◇ UNVERIFIED |
