| OTOdessa Terminal | Odessa | TX | — | ◐ LIKELY ACTIVE |
| OROhio River Concrete CORP | Marion | KY | — | ◐ LIKELY ACTIVE |
| OCOk Concrete Company | Wichita Falls | TX | 20–99 | ◐ LIKELY ACTIVE |
| OCOld Castle Apg | Riverhead | NY | — | ◐ LIKELY ACTIVE |
| OCOldcastle Coastal INC | Fort Myers | FL | — | ◐ LIKELY ACTIVE |
| OSOldcastle Sw Group - Anderson Rmc | Delta | CO | — | ◐ LIKELY ACTIVE |
| OSOldcastle Sw Group - Rifle Rmc Plant | Rifle | CO | — | ◐ LIKELY ACTIVE |
| OUOldcastle United Comp of Mesa County | Rifle | CO | — | ◐ LIKELY ACTIVE |
| OOntario | Ontario | CA | 100–499 | ◐ LIKELY ACTIVE |
| OROtsego Ready Mix | Oneonta | NY | 20–99 | ◐ LIKELY ACTIVE |
| OBOverman Buildings INC | Pocahontas | AR | 20–99 | ◐ LIKELY ACTIVE |
| OCOwensboro Concrete CO | Owensboro | KY | — | ◐ LIKELY ACTIVE |
| OSOxford Sand Company Inc, Pontotoc Plant | Pontotoc | MS | — | ◐ LIKELY ACTIVE |
| OROzark Ready Mix - Lee's Summit | Lake Lotawana | MO | — | ◐ LIKELY ACTIVE |
| PPPackage Pavement | Ravena | NY | 20–99 | ◐ LIKELY ACTIVE |
| PPPalmer Paving CORP | Springfield | MA | — | ◐ LIKELY ACTIVE |
| PPPalmer Paving CORP | Palmer | MA | — | ◐ LIKELY ACTIVE |
| PMPaw Materials, INC. | Odessa | FL | — | ◐ LIKELY ACTIVE |
| POPeerless Oil & Chemicals, INC. | Penuelas | PR | 20–99 | ◐ LIKELY ACTIVE |
| PRPelican Refining CO LLC | Lake Charles | LA | — | ◐ LIKELY ACTIVE |
| PJPenn Jersey Building Materials | Egg Harbor Township | NJ | 20–99 | ◐ LIKELY ACTIVE |
| PCPenny's Concrete Higginsville | Higginsville | MO | — | ◐ LIKELY ACTIVE |
| PCPennys Concrete INC | Lawrence | KS | — | ◐ LIKELY ACTIVE |
| PCPenny's Concrete Plant #41 - Carrollton | Carrollton | MO | — | ◐ LIKELY ACTIVE |
| PMPenny's - Mcneilus Batchmaster 12-gardner (portable)(air) | New Century | KS | — | ◐ LIKELY ACTIVE |
| PRPenny's - Rex Model S-gardner Wet (portable)(air) | Portable | KS | — | ◐ LIKELY ACTIVE |
| PSPennzoil-quaker State CO Dba Sopus Products-portland | Portland | OR | — | ◐ LIKELY ACTIVE |
| PPPer Properties | Portsmouth | VA | — | ◐ LIKELY ACTIVE |
| P6Phillips 66 - Los Angeles Lubricants | Los Angeles | CA | 20–99 | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix Concrete INC | Collins | MS | — | ◐ LIKELY ACTIVE |
| PCPlatte County Ready Mix-platte County Ready Mix | Platte City | MO | — | ◐ LIKELY ACTIVE |
| PVPleasant Valley | Pleasant Valley | NY | 20–99 | ◐ LIKELY ACTIVE |
| PCPlt Concrete Services | Rocky Mount | NC | — | ◐ LIKELY ACTIVE |
| PUPolimix Usa, Llc, Medley Plant | Medley | FL | — | ◐ LIKELY ACTIVE |
| PRPolitte Ready Mix - Bonne Terre Site | Bonne Terre | MO | — | ◐ LIKELY ACTIVE |
| PCPort City Concrete- Harleyville | Harleyville | SC | 20–99 | ◐ LIKELY ACTIVE |
| PCPort City Concrete- Pace | North Charleston | SC | 1–19 | ◐ LIKELY ACTIVE |
| PCPrairie Contractors LLC - Lafayette Hot Mix Asphalt Plant | Lafayette | LA | — | ◐ LIKELY ACTIVE |
| POPrecast of Maine | Topsham | ME | 20–99 | ◐ LIKELY ACTIVE |
| PMPreferred Materials INC - Golden Gate Ready Mix Plant | Naples | FL | — | ◐ LIKELY ACTIVE |
| PMPreferred Materials, Inc.- Immokalee | Immokalee | FL | — | ◐ LIKELY ACTIVE |
| PCPrestige Concrete Products | Hernando | FL | — | ◐ LIKELY ACTIVE |
| PGProject Goldeneye | Bay Minette | AL | — | ◐ LIKELY ACTIVE |
| PIPump-crete, Inc., Pine Road Facility | Auburndale | FL | — | ◐ LIKELY ACTIVE |
| PCPyles Concrete INC - Casey Plant | Liberty | KY | — | ◐ LIKELY ACTIVE |
| QSQuality Stone & Ready Mix-quarry | Shepherdsville | KY | — | ◐ LIKELY ACTIVE |
| QCQuikrete CO Inc/harrisburg Plt | Paxinos | PA | — | ◐ LIKELY ACTIVE |
| QCQuikrete Companies LLC / Quikrete Tulsa 13th St | Tulsa | OK | — | ◐ LIKELY ACTIVE |
| QBQuikrete-concrete Bagging Plant | Denver | CO | — | ◐ LIKELY ACTIVE |
| QCQuikrete Construction Materials LLC - Chesapeake Cement Terminal | Chesapeake | VA | — | ◐ LIKELY ACTIVE |