| OROriginal Rock Replicas of Arizona, INC. | Tempe | AZ | — | ◇ UNVERIFIED |
| OCOrnamental Columns and Statues, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
| OCOrnamental Concrete INC | Arvada | CO | — | ◇ UNVERIFIED |
| OSOrnamental Stone INC | Allyn | WA | — | ◇ UNVERIFIED |
| OLO.T.S. Logistics, LLC | Brownstown | IL | — | ◇ UNVERIFIED |
| OAOwens and Son's Vault Company | Union Springs | AL | — | ◇ UNVERIFIED |
| PAPacific Aquascapes INC | Lanai City | HI | — | ◇ UNVERIFIED |
| PCPacific Cast Stone | Lincoln | NE | — | ◇ UNVERIFIED |
| PIPacific Interlock Paver INC | Hollister | CA | — | ◇ UNVERIFIED |
| PSPacific Structures | Riverside | CA | — | ◇ UNVERIFIED |
| PRPai Ready Mix LLC - Many Plant | Many | LA | — | ◇ UNVERIFIED |
| PBPalm Bay Plant | Palm Bay | FL | — | ◇ UNVERIFIED |
| PCPanhandle Concrete Products, INC. | Scottsbluff | NE | — | ◇ UNVERIFIED |
| PBParagon Building Products Incorporated | Henderson | NV | — | ◇ UNVERIFIED |
| PCParamount Concrete, INC. | Pompano Beach | FL | — | ◇ UNVERIFIED |
| PPParamount Precast Design INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| PIParexlahabra INC | French Camp | CA | — | ◇ UNVERIFIED |
| PPParker Precast, INC | Richmond Hill | GA | — | ◇ UNVERIFIED |
| PUPark USA San Antonio | San Antonio | TX | — | ◇ UNVERIFIED |
| PPPatriot Partners INC. | Westbrook | ME | — | ◇ UNVERIFIED |
| PVPatriot Vault & Precast | Park Hills | MO | — | ◇ UNVERIFIED |
| PSPaul's Silo Service, LLC | Stevens Point | WI | — | ◇ UNVERIFIED |
| PPPaveloc Plus LLC | Rosenberg | TX | — | ◇ UNVERIFIED |
| PLPavestone - La Feria | La Feria | TX | — | ◇ UNVERIFIED |
| PLPavestone LLC | Middleboro | MA | — | ◇ UNVERIFIED |
| PRPavestone - Richmond, Va Plant [newline] | Doswell | VA | — | ◇ UNVERIFIED |
| PPavestown | Pedricktown | NJ | — | ◇ UNVERIFIED |
| PMPaw Materials, INC | Land O Lakes | FL | — | ◇ UNVERIFIED |
| PCPayless Concrete Products, INC. | Iola | KS | — | ◇ UNVERIFIED |
| PCPbm Concrete INC | Rochelle | IL | — | ◇ UNVERIFIED |
| PAPcr Aquisitions Dba Campania Intl Inc/quakertown | Quakertown | PA | — | ◇ UNVERIFIED |
| PEPeacock Enterprises INC. | Atmore | AL | — | ◇ UNVERIFIED |
| PPPeaks Precast LLC | Buena Vista | CO | — | ◇ UNVERIFIED |
| PTPebble Technology International | Scottsdale | AZ | — | ◇ UNVERIFIED |
| POPece of Mind Environmental - Concrete Crusher Yard | Orlando | FL | — | ◇ UNVERIFIED |
| PPPelkowski Precast CORP | Kings Park | NY | — | ◇ UNVERIFIED |
| PBPensacola Block USA | Pensacola | FL | — | ◇ UNVERIFIED |
| PIPeopleready, INC. | Oxford | MA | — | ◇ UNVERIFIED |
| PPPerformance Plus Products LLC | Aliso Viejo | CA | — | ◇ UNVERIFIED |
| PFPeri Formwork Systems INC. | Elkridge | MD | — | ◇ UNVERIFIED |
| PTPersonal Touch Stone | Moss Point | MS | — | ◇ UNVERIFIED |
| PBPetersburg Block INC | Petersburg | WV | — | ◇ UNVERIFIED |
| PGPeters Gunite Materials | Modesto | CA | — | ◇ UNVERIFIED |
| PCPeterson Concrete Septic Tanks & Storm Shelters | Pottsville | AR | — | ◇ UNVERIFIED |
| PCPeterson Concrete Tank CO | Clinton | AR | — | ◇ UNVERIFIED |
| PBPetrillo Bros INC | Franklin | TN | — | ◇ UNVERIFIED |
| PFPgh Flexicore/donora Plt | Donora | PA | — | ◇ UNVERIFIED |
| PSPhilip Services Hawaii LTD | Kapolei | HI | — | ◇ UNVERIFIED |
| PCPhillips Concrete INC | Bridgewater Twp | NJ | — | ◇ UNVERIFIED |
| PBPhoenix Block CO. LLC | Montgomery | AL | — | ◇ UNVERIFIED |
