| OCOldcastle Coastal INC | Fort Myers | FL | — | ◐ LIKELY ACTIVE |
| OPOldcastle Precast INC | South Bethlehem | NY | — | ◐ 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 |
| OMOmg Midwest, INC. | Stanton | TN | — | ◐ LIKELY ACTIVE |
| OIOmya, INC. - Alabama Operations | Sylacauga | AL | — | ◐ LIKELY ACTIVE |
| OOntario | Ontario | CA | 100–499 | ◐ LIKELY ACTIVE |
| OMOpta - Milan | Milan | MI | 1–19 | ◐ LIKELY ACTIVE |
| OROtsego Ready Mix | Oneonta | NY | 20–99 | ◐ LIKELY ACTIVE |
| OMOverland Material and Manufacturing INC / Astec 3 | Mill Creek | OK | — | ◐ LIKELY ACTIVE |
| OMOverland Material and Manufacturing INC / Astec 6 | Ada | OK | — | ◐ LIKELY ACTIVE |
| OBOverman Buildings INC | Pocahontas | AR | 20–99 | ◐ LIKELY ACTIVE |
| OCOwensboro Concrete CO | Owensboro | KY | — | ◐ LIKELY ACTIVE |
| OCOxford Construction CO | Albany | GA | — | ◐ 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 |
| PMPAHB - Midwest Block | Paducah | KY | 1–19 | ◐ LIKELY ACTIVE |
| PCPalmetto Corporation Bishopville Plant | Bishopville | SC | — | ◐ LIKELY ACTIVE |
| PCPalmetto Corporation Conway Plant | Conway | SC | — | ◐ LIKELY ACTIVE |
| PCPalmetto Corporation of Conway - Orangeburg Plant | Bowman | SC | — | ◐ LIKELY ACTIVE |
| PPPalmetto Paving Florence | Florence | SC | — | ◐ LIKELY ACTIVE |
| PPPalmetto Paving Lugoff | Lugoff | SC | — | ◐ LIKELY ACTIVE |
| PAPanagakos Asphalt Paving Gray Court | Gray Court | SC | — | ◐ LIKELY ACTIVE |
| PLPavers LLC | Waverly | NE | — | ◐ LIKELY ACTIVE |
| PCPavex CORP | Winter Garden | FL | — | ◐ LIKELY ACTIVE |
| PMPaw Materials, INC. | Odessa | FL | — | ◐ LIKELY ACTIVE |
| PHPawtucket Hot Mix Asphalt INC | Pawtucket | RI | — | ◐ LIKELY ACTIVE |
| PDPayne & Dolan INC C19 | Hancock Twp | MI | — | ◐ LIKELY ACTIVE |
| PDPayne & Dolan INC C22 | Alba | MI | — | ◐ LIKELY ACTIVE |
| PDPayne & Dolan, INC. - C25 | Gladstone | MI | — | ◐ LIKELY ACTIVE |
| PJPenn Jersey Building Materials | Egg Harbor Township | NJ | 20–99 | ◐ LIKELY ACTIVE |
| PSPennsy Supply INC Dba Mcminns Asphalt Co/rheems | Rheems | PA | — | ◐ LIKELY ACTIVE |
| PSPennsy Supply Inc/dorrance Quarry | Mountain Top | PA | — | ◐ 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 |
| PPPer Properties | Portsmouth | VA | — | ◐ LIKELY ACTIVE |
| PBPh Broughton & Sons INC | Springfield | IL | — | ◐ LIKELY ACTIVE |
| PPPhoenix Precast Products | Concord | NH | 20–99 | ◐ LIKELY ACTIVE |
| PAPiedmont Asphalt LLC | South Boston | VA | — | ◐ LIKELY ACTIVE |
| PIPike Industries INC - Brentwood | Brentwood | NH | — | ◐ LIKELY ACTIVE |
| PIPike Industries Plant #801 (swanton) | Swanton | VT | — | ◐ LIKELY ACTIVE |
| PCPikes Creek Asphalt / Lehman | Hunlock Creek | PA | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix Concrete INC | Collins | MS | — | ◐ LIKELY ACTIVE |
| PCPlant City | Plant City | FL | 20–99 | ◐ LIKELY ACTIVE |
| PCPlatte County Ready Mix-platte County Ready Mix | Platte City | MO | — | ◐ LIKELY ACTIVE |