| RCRec - Cannon Falls | Cannon Falls | — | ◇ UNVERIFIED |
| RWRed Wing Stoneware CO | Red Wing | — | ◇ UNVERIFIED |
| RSReinarts Stained Glass Studios INC | Winona | — | ◇ UNVERIFIED |
| RCRiver City Glass INC | Burnsville | — | ◇ UNVERIFIED |
| RCRochester Concrete Products | Rochester | — | ◇ UNVERIFIED |
| RERoyal Enterprises America INC Dba Royal Concrete P | Stacy | — | ◇ UNVERIFIED |
| RPRoyal Products INC | Minneapolis | — | ◇ UNVERIFIED |
| SESage Electrochromics INC | Faribault | — | ◇ UNVERIFIED |
| SCSather Concrete Products INC | Merrifield | — | ◇ UNVERIFIED |
| SCSchuur Concrete LLC | Chandler | — | ◇ UNVERIFIED |
 Schwartz Redi-mix INC | La Prairie | — | ◇ UNVERIFIED |
| SVSecure Vault Company, INC. | Cook | — | ◇ UNVERIFIED |
| SBSeppi Brothers | Wuori Township | — | ◇ UNVERIFIED |
| SBSeppi Brothers Concrete Products Corporation | Virginia | — | ◇ UNVERIFIED |
| SCSilver Creek Stoneworks INC | Rochester | — | ◇ UNVERIFIED |
| SCSimi Company LLC | Maple Grove | — | ◇ UNVERIFIED |
| SRSmittys Ready Mix of Barnum INC | Barnum | — | ◇ UNVERIFIED |
| SMSpartan Mfg CO INC | Saint Paul | — | ◇ UNVERIFIED |
| SSSpaulding Stone LLC | Moorhead | — | ◇ UNVERIFIED |
| SWSpeedling Welding Trailer Dba Svj Creative Designs | Kellogg | — | ◇ UNVERIFIED |
| SCStone Crafters INC | Saint Cloud | — | ◇ UNVERIFIED |
| SSStonemasters & Sons INC | Edina | — | ◇ UNVERIFIED |
| SSStone Systems and Services INC | Mendota Heights | — | ◇ UNVERIFIED |
| SAStoneworks Architectural Precast INC | Elk River | — | ◇ UNVERIFIED |
| SRStoskopf Redi-mix of Roseau INC | Roseau | — | ◇ UNVERIFIED |
| SPSt Peter Insulated Glass INC | Saint Peter | — | ◇ UNVERIFIED |
| SSSummit Stone Interiors INC | Clearwater | — | ◇ UNVERIFIED |
| SCSuperior Concrete Block Company | Mankato | — | ◇ UNVERIFIED |
| TBTcc Borgert | Saint Joseph | — | ◇ UNVERIFIED |
| TMTcc Materials Companies | Mendota Heights | — | ◇ UNVERIFIED |
| TCThemed Concepts LLC | Forest Lake | — | ◇ UNVERIFIED |
| TSTrilite Stone INC Dba Trilite Stone Company | Howard Lake | — | ◇ UNVERIFIED |
| TSTru Stone Technologies INC | Waite Park | — | ◇ UNVERIFIED |
| TVTru Vue INC | Faribault | — | ◇ UNVERIFIED |
| TWTT Wendt LLC | Saint Joseph | — | ◇ UNVERIFIED |
| USUniversal Stone INC | Shakopee | — | ◇ UNVERIFIED |
| VLVanDillion, LLC | Minneapolis | — | ◇ UNVERIFIED |
| VWVision Woodworking - Fridley | Fridley | — | ◇ UNVERIFIED |
| VOVogelin Optical CO INC | Norwood Young America | — | ◇ UNVERIFIED |
| WSWabasha Sand Gravel & Ready Mixed CO | Wabasha | — | ◇ UNVERIFIED |
| WCWells Concrete - St. Hilaire | Thief River Falls | — | ◇ UNVERIFIED |
| WPWieser Precast Steps INC | Stewartville | — | ◇ UNVERIFIED |
| ZCZuel CO INC | Saint Paul | — | ◇ UNVERIFIED |
| ZCZygrove Corporation | Mound | — | ◇ UNVERIFIED |
