| 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 |
| PPPhoenix Precast Products, Inc. | Phoenix | AZ | — | ◇ UNVERIFIED |
| PRPhoenix Recycling | Ashland | VA | — | ◇ UNVERIFIED |
| PCPiedmont Concrete Products Incorporated Duncan | Duncan | SC | — | ◇ UNVERIFIED |
| PDPinnacle Design/build Group INC | Corvallis | OR | — | ◇ UNVERIFIED |
| PHPinnacle Health/harrisburg Hosp | Harrisburg | PA | — | ◇ UNVERIFIED |
| PRPioneer Roofing Tile INC | Fontana | CA | — | ◇ UNVERIFIED |
| PWPitsch Wrecking CO. - Concrete Recycling Plant | Walker | MI | — | ◇ UNVERIFIED |
| PCPitt Concrete Products INC | Trinity | AL | — | ◇ UNVERIFIED |
| PMPlasterglass Manufacturing | Omaha | NE | — | ◇ UNVERIFIED |
| PVPlatte Valley Precast, INC. | Columbus | NE | — | ◇ UNVERIFIED |
| PCPlum Creek Precast Company | Littleton | CO | — | ◇ UNVERIFIED |
| PUPlycem USA LLC - Allura (roaring River Facility) | North Wilkesboro | NC | — | ◇ UNVERIFIED |
| PGPly Gem Industries, INC. | Middleburg | PA | — | ◇ UNVERIFIED |
| PGPly Gem Speciality Products LLC | Olathe | KS | — | ◇ UNVERIFIED |
| PMPnb Manufacturing, INC. | High Point | NC | — | ◇ UNVERIFIED |
| PCPomeroy Corporation | Perris | CA | — | ◇ UNVERIFIED |
| PBPompano Beach Facility | Pompano Beach | FL | — | ◇ UNVERIFIED |
| PPPompili Precast Concrete | Cleveland | OH | — | ◇ UNVERIFIED |
| PCPonce Concrete Blk 1 | Ponce | PR | — | ◇ UNVERIFIED |
| PCPope Concrete Products, INC. | Waycross | GA | — | ◇ UNVERIFIED |
| PIPre-cal INC Dba Ginger Precast Designs | Riverside | CA | — | ◇ UNVERIFIED |
| PCPre-cast Concrete Step Co., INC. | New Orleans | LA | — | ◇ UNVERIFIED |
| PIPrecast Incorporated | Honolulu | HI | — | ◇ UNVERIFIED |
| PSPre-cast Specialties, LLC | Fort Pierce | FL | — | ◇ UNVERIFIED |
| PPPrecision Packaging INC | Jackson | MS | — | ◇ UNVERIFIED |
| PPPrecision Precast Concrete Corp | Arverne | NY | — | ◇ UNVERIFIED |
| PPPrecision Precast INC | Pittsfield | MA | — | ◇ UNVERIFIED |
| PCPrecon Corporation | Panama City | FL | — | ◇ UNVERIFIED |
| PSPrestressed Slabs INC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| PEPrestress Engineering CO | Blackstone | IL | — | ◇ UNVERIFIED |
| PSPrestress Services Industries of Tn, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| PSPrestress Systems | Fort Myers | FL | — | ◇ UNVERIFIED |
| PSProject Staffing, INC. | Topsham | ME | — | ◇ UNVERIFIED |
| PIPro-mix INC. / Structural Prestressed Industries | Medley | FL | — | ◇ UNVERIFIED |
| PIProplants, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| PTPro Tec International | Osprey | FL | — | ◇ UNVERIFIED |
| PSProvia Stone LLC | Sugarcreek | OH | — | ◇ UNVERIFIED |
| PPP&s Paving, INC. | Daytona Beach | FL | — | ◇ UNVERIFIED |
| PLPulsar, LLC | La Vergne | TN | — | ◇ UNVERIFIED |
| PFP.w. Feenstra - Port. Conc. Batch Plnt 3 | Queen Creek | AZ | — | ◇ UNVERIFIED |
| PCPyramid Construction and Aggregates | Imperial County | CA | — | ◇ UNVERIFIED |
| PIPyramid Industries LLC | Kihei | HI | — | ◇ UNVERIFIED |
| PPPyramid Pavers, LLC | Englewood | FL | — | ◇ UNVERIFIED |
| PPPyramid Precast INC | Rialto | CA | — | ◇ UNVERIFIED |
| QCQuad Cities Concrete Products, LLC | Milan | IL | — | ◇ UNVERIFIED |
| QBQuality Block & Supply | Mulberry | FL | — | ◇ UNVERIFIED |
| QPQuality Precast Solutions, LLC | Fort Myers | FL | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Benson | NC | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Refton | PA | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Tower City | PA | — | ◇ UNVERIFIED |
