| OWOld World Fabricating | Birmingham | — | ◇ UNVERIFIED |
| OIOpta Irondale | Irondale | — | ◇ UNVERIFIED |
| OHOrbix Hot Glass | Fort Payne | — | ◇ UNVERIFIED |
| OTOver the Mountain Glass, INC. | Pelham | — | ◇ UNVERIFIED |
| OAOwens and Son's Vault Company | Union Springs | — | ◇ UNVERIFIED |
| PEPeacock Enterprises INC. | Atmore | — | ◇ UNVERIFIED |
| PMPelham Marble Company, INC. | Pelham | — | ◇ UNVERIFIED |
| PMPerformance Minerals Corporation | Birmingham | — | ◇ UNVERIFIED |
| PBPhoenix Block CO. LLC | Montgomery | — | ◇ UNVERIFIED |
| PCPolymer Concrete INC. | Camden | — | ◇ UNVERIFIED |
| PCPort City Marble, INC. | Mobile | — | ◇ UNVERIFIED |
| PHPpg Huntsville | Huntsville | — | ◇ UNVERIFIED |
| PCProject Crossroads | Belle Mina | — | ◇ UNVERIFIED |
| PIPyrotek, INC. | Muscle Shoals | — | ◇ UNVERIFIED |
| QRQuikrete Ready Mix - Lanett Plant | Lanett | — | ◇ UNVERIFIED |
| RMReady Mix USA | Troy | — | ◇ UNVERIFIED |
| RMReady Mix USA INC. | Birmingham | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC | Atmore | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Bessemer/mccalla Temporary Facility | Bessemer | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Llc-cemex | Decatur | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Llc- West Montgomery Temporary Facility | Montgomery | — | ◇ UNVERIFIED |
| RSRiviera Stoneworks, INC. | Foley | — | ◇ UNVERIFIED |
| SCSam Carroll Memorials, INC. | Andalusia | — | ◇ UNVERIFIED |
| SCShelby Concrete, INC. | Trussville | — | ◇ UNVERIFIED |
| SLSherman Lehigh Hanson | Alexander City | — | ◇ UNVERIFIED |
| SRSherman Ready Mix Concrete Co.(n.birmingham) | Birmingham | — | ◇ UNVERIFIED |
| STSign & Tint Shop, INC. | Saraland | — | ◇ UNVERIFIED |
| S5Srm 516 Lacey Springs | Lacey Springs | — | ◇ UNVERIFIED |
| SCSrm Cullman - 15025 | Cullman | — | ◇ UNVERIFIED |
| SIStein, INC. (old Harsco Metals) | Tarrant | — | ◇ UNVERIFIED |
| SCStephens Construction | Luverne | — | ◇ UNVERIFIED |
| SSStone Specialties, INC. | Mobile | — | ◇ UNVERIFIED |
| SCSunbelt Crushing, LLC. | Mobile | — | ◇ UNVERIFIED |
| SGSunbelt Glass, LLC | Birmingham | — | ◇ UNVERIFIED |
| TCTanner Concrete Plant | Tanner | — | ◇ UNVERIFIED |
| TITms International, LLC | Calvert | — | ◇ UNVERIFIED |
| UIUni-ref INC. | Birmingham | — | ◇ UNVERIFIED |
| UPUniversal Precast, Inc. | Pike County | — | ◇ UNVERIFIED |
| UPUniversal Precast, Inc. | Troy | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Theodore | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Phenix City | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Demopolis | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Foley | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Loxley | — | ◇ UNVERIFIED |
| VAVitro America, INC. | Montgomery | — | ◇ UNVERIFIED |
| WCWalter Coke INC Fiber Div | Birmingham | — | ◇ UNVERIFIED |
| WDWayne Davis Concrete - Lanett | Lanett | — | ◇ UNVERIFIED |
| WMWeaver's Monument Company, INC. | Flomaton | — | ◇ UNVERIFIED |
| WAWest Alabama Ready Mix - Jasper Facility | Jasper | — | ◇ UNVERIFIED |
