| SCSchmidt Const CO | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SCSchmidt Const CO | Castle Rock | CO | — | ◇ UNVERIFIED |
| SCSchmidt Const CO - Fountain Pit | Fountain | CO | — | ◇ UNVERIFIED |
| SCSchmidt Const CO INC Mencenberg Quarry | Castle Rock | CO | — | ◇ UNVERIFIED |
| SCSchmidt Const CO - Menzer | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SCSchmidt Construction Co.-delta Drive Fac | Colorado Springs | CO | — | ◇ UNVERIFIED |
| STSchmidt Tiago Const CO | Arvada | CO | — | ◇ UNVERIFIED |
| SLSchneider Labs INC | Richmond | VA | — | ◇ UNVERIFIED |
| SESchrader Environmental Services | Fort Collins | CO | — | ◇ UNVERIFIED |
| SCSchreiter Concrete | Wright City | MO | — | ◇ UNVERIFIED |
| SRSchreiter Ready Mix | O Fallon | MO | — | ◇ UNVERIFIED |
| SSSchrey Systems INC | Newton | IL | — | ◇ UNVERIFIED |
| SISchuller International, INC. | Willows | CA | — | ◇ UNVERIFIED |
| SFSchultz Family Trust | Rolling Hills | CA | — | ◇ UNVERIFIED |
| SCSchuster Concrete - Mid Pike | Rockville | MD | — | ◇ UNVERIFIED |
| SCSchuster Concrete Ready Mix - Cp18 | Alexandria | VA | — | ◇ UNVERIFIED |
| SCSchuster Concrete Ready Mix - Kalahari | Woodford | VA | — | ◇ UNVERIFIED |
| SCSchuster Concrete Ready Mix - One Logistics | Winchester | VA | — | ◇ UNVERIFIED |
| SCSchuur Concrete LLC | Chandler | MN | — | ◇ UNVERIFIED |
 Schwartz Redi-mix INC | La Prairie | MN | — | ◇ UNVERIFIED |
| SMScioto Materials LLC | Westerville | OH | — | ◇ UNVERIFIED |
| SMScioto Materials LLC (0125042399) | Columbus | OH | — | ◇ UNVERIFIED |
| SMScioto Materials LLC St. Louisville (0145000400) | Saint Louisville | OH | — | ◇ UNVERIFIED |
| SRScioto Ready Mix | Dublin | OH | — | ◇ UNVERIFIED |
| SCScituate Concrete Products | Marshfield | MA | — | ◇ UNVERIFIED |
| SCScott City Ready Mix Plant | Scott City | KS | — | ◇ UNVERIFIED |
| SCScott Construction INC - Jackson Quarry | Loganville | WI | — | ◇ UNVERIFIED |
| SPScottsboro Plant | Scottsboro | AL | — | ◇ UNVERIFIED |
| SCScotty's Contacting and Stone LLC - Hart County Stone | Horse Cave | KY | — | ◇ UNVERIFIED |
| SCScotty's Contracting | Elkton | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone Lcc - Metcalfe CO Asphalt Plant | Knob Lick | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC | Russellville | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC | Franklin | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC | Bowling Green | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC | Hartford | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC | Cave City | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Allen CO Asphalt Plant - Portable | Tompkinsville | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Asphalt Plant | Cave City | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Fort Knox Plant 4 | Elizabethtown | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Glasgow Quarry | Cave City | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Mcginnis Quarry - Portable | Franklin | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Mcginnis Quarry Portable | Bowling Green | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Mcginnis Quarry Portable | Upton | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Metcalfe CO Quarry | Knob Lick | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Portab | Elizabethtown | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Portable Asphalt Plant | Elizabethtown | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Portable Power Screen | Fort Knox | KY | — | ◇ UNVERIFIED |
| SCScotty's Contracting & Stone LLC - Qualified Paving | Leitchfield | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Rocky Asphalt Plant E-town | Horse Cave | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Scottsville Asphalt Plant | Scottsville | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Tompkinsville Asphalt Plant | Tompkinsville | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Upton Plant 7 | Elizabethtown | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Warren Portable Asphalt 1 | Bowling Green | KY | — | ◇ UNVERIFIED |
| SCScottys Contracting & Stone LLC - Wash Plant- Portable | Leitchfield | KY | — | ◇ UNVERIFIED |
| SPSc Prestress Kingstree | Kingstree | SC | — | ◇ UNVERIFIED |
| SCScrap Central INC | Omaha | NE | — | ◇ UNVERIFIED |
| SIScrap It in Mulberry LLC | Mulberry | FL | — | ◇ UNVERIFIED |
| SIScrap It LLC | Mulberry | FL | — | ◇ UNVERIFIED |
| SCScripture's Concrete INC. | Rockport | ME | — | ◇ UNVERIFIED |
| SIScrivanich in | Bellingham | WA | — | ◇ UNVERIFIED |
| SNScrivanich Natural Stone | Woodinville | WA | — | ◇ UNVERIFIED |
| SCScruggs Concrete Company | Madison | FL | — | ◇ UNVERIFIED |
| SSSculptured Stone INC. | Fairfield | NJ | — | ◇ UNVERIFIED |
| SIScurlock Industries of Springfield-springfiled | Springfield | MO | — | ◇ UNVERIFIED |
| SCSd Concrete Pumping INC | Santee | CA | — | ◇ UNVERIFIED |
| SASeaboard Asphalt Products Company | Baltimore | MD | — | ◇ UNVERIFIED |
| SCSeaboard Concrete Products Company Incorporated | Richmond | VA | — | ◇ UNVERIFIED |
| SCSeaford Concrete Products | Bridgeville | DE | — | ◇ UNVERIFIED |
| SLSealmaster Los Angeles | San Diego | CA | — | ◇ UNVERIFIED |
| SOSealmaster of Kansas City | Kansas City | MO | — | ◇ UNVERIFIED |
| SMSeal Masters | Bakersfield | CA | — | ◇ UNVERIFIED |
| SUSealmaster Utah | West Valley City | UT | — | ◇ UNVERIFIED |
| SCSealy Concrete | Sealy | TX | — | ◇ UNVERIFIED |
| SCSebewaing Concrete Prod INC | Sebewaing | MI | — | ◇ UNVERIFIED |
| SASebring Airport Temporary Ready Mix Plant | Orlando | FL | — | ◇ UNVERIFIED |
| SPSebring Precast Products, INC. | Sebring | FL | — | ◇ UNVERIFIED |
| SCSe Concrete INC | Kingston | MA | — | ◇ UNVERIFIED |
| SISecon, Inc./stansteel 3000 | Bellevue | WA | — | ◇ UNVERIFIED |
| SVSecure Vault Company, INC. | Cook | MN | — | ◇ UNVERIFIED |
| SCSedgwick CO. Public Works (asphalt Plant)(air) | Wichita | KS | — | ◇ UNVERIFIED |
| SKSedgwick, Ks Stockpile | Sedgwick | KS | — | ◇ UNVERIFIED |
| S0See 041-0231-03 Pete Lien & Sons | Colorado Springs | CO | — | ◇ UNVERIFIED |
| S0See 075/0089 Mcatee Construction Co- Riv | Sterling | CO | — | ◇ UNVERIFIED |
| SCSei Concrete - Clay CO Facility | Manchester | KY | — | ◇ UNVERIFIED |
| SISelectcrete INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| SSSelkirk Stone INC | Sandpoint | ID | — | ◇ UNVERIFIED |
| SSSellersburg Stone CO INC (asphalt) | Sellersburg | IN | — | ◇ UNVERIFIED |
| SCSelvage Concrete Products, INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| SPSeminole Precast Manufacturing, INC. | Macon | GA | — | ◇ UNVERIFIED |
| SSemmaterials | Spokane | WA | — | ◇ UNVERIFIED |
| SMSem Materials, INC. | Ardmore | OK | — | ◇ UNVERIFIED |
| SLSemmaterials LP | Conley | GA | — | ◇ UNVERIFIED |
| SLSemmaterials, L.p. - Ogden Ut | Ogden | UT | — | ◇ UNVERIFIED |
| SOSemo Operating Company | Advance | MO | — | ◇ UNVERIFIED |
| SOSemo Operating Company | Bragg City | MO | — | ◇ UNVERIFIED |
| SOSemo Operating Company | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| SRSemo Ready Mix | Sikeston | MO | — | ◇ UNVERIFIED |
| SRSemo Ready Mix - Advance | Advance | MO | — | ◇ UNVERIFIED |
| SRSemo Ready Mix - Cape Girardeau North | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| SRSemo Ready Mix - Cape Girardeau South | Cape Girardeau | MO | — | ◇ UNVERIFIED |
