| OGOcean Granite and Marble LLC | Little Egg Harbor Twp | NJ | — | ◇ UNVERIFIED |
| OCOgden Concrete Batch Plant G19 | Ogden | UT | — | ◇ UNVERIFIED |
| OOldcastle | Lebanon | PA | — | ◇ UNVERIFIED |
| OOldcastle | Eugene | OR | — | ◇ UNVERIFIED |
| OOldcastle | Keizer | OR | — | ◇ UNVERIFIED |
| OAOldcastle Apg South INC | Rockwood | TN | — | ◇ UNVERIFIED |
| OCOldcastle Coastal | Tampa | FL | — | ◇ UNVERIFIED |
| OCOldcastle Coastal, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| OEOldcastle Enclosure Solutions | Tracy | CA | — | ◇ UNVERIFIED |
| OFOldcastle Florence | Florence | TX | — | ◇ UNVERIFIED |
| OGOldcastle Greensboro | Greensboro | NC | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Romeoville | IL | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Nampa | ID | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Midway | FL | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Pleasanton | CA | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure Devils Lake Precast | Devils Lake | ND | — | ◇ UNVERIFIED |
 Oldcastle Infrastructure, INC - Fontana | Fontana | CA | — | ◇ UNVERIFIED |
| Oldcastle Infrastructure, INC. - Phoenix Oes | Phoenix | AZ | — | ◇ UNVERIFIED |
| Oldcastle Infrastructure Inc/telford | Telford | PA | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure - Platteville | Loveland Area | CO | — | ◇ UNVERIFIED |
| ONOldcastle Nampa Madison | Nampa | ID | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Perris | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast | Fontana | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Clackamas | OR | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Stone Mountain | GA | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Tualatin | OR | — | ◇ UNVERIFIED |
| OPOldcastle Precast INC | Elk River | MN | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. | Telford | PA | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. | Stockton | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. | Lathrop | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| OPOldcastle Precast, INC. Dba Nc Products | Raleigh | NC | — | ◇ UNVERIFIED |
| OSOldcastle Savannah | Guyton | GA | — | ◇ UNVERIFIED |
| OWOldcastle Westile, INC. | Littleton | CO | — | ◇ UNVERIFIED |
| OMOlympic Marble | Buena Park | CA | — | ◇ UNVERIFIED |
| OWOmaha Wilbert Vault, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| OPOmni Products, INC. | Lincolnton | NC | — | ◇ UNVERIFIED |
| OBOrco Blended Products INC | Highland | CA | — | ◇ UNVERIFIED |
| OROriginal Rock Replicas of Arizona, INC. | Tempe | AZ | — | ◇ UNVERIFIED |
| OCOrnamental Columns and Statues, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
| OSOrnamental Stone INC | Allyn | WA | — | ◇ UNVERIFIED |
| OAOwens and Son's Vault Company | Union Springs | AL | — | ◇ UNVERIFIED |
| PAPacific Aquascapes INC | Lanai City | HI | — | ◇ 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 |
| 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 |
| PEPeacock Enterprises INC. | Atmore | AL | — | ◇ UNVERIFIED |
| PPPeaks Precast LLC | Buena Vista | CO | — | ◇ UNVERIFIED |
| PTPebble Technology International | Scottsdale | AZ | — | ◇ UNVERIFIED |
| PCPedroni's Cast Stone INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| PPPelkowski Precast CORP | Kings Park | NY | — | ◇ 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 |
| 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 |
| PPPhoenix Precast Products, Inc. | Phoenix | AZ | — | ◇ UNVERIFIED |
| PRPioneer Roofing Tile INC | Fontana | CA | — | ◇ 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 |
| PPPompili Precast Concrete | Cleveland | OH | — | ◇ UNVERIFIED |
| PCPope Concrete Products, INC. | Waycross | GA | — | ◇ UNVERIFIED |
| PCPorterville Concrete Pipe INC | Porterville | 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 Precast Concrete Corp | Arverne | NY | — | ◇ UNVERIFIED |
| PCPrecon Corporation | Panama City | FL | — | ◇ UNVERIFIED |
| PSPrestressed Slabs INC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| PSPrestress Services Industries of Tn, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| PSPrestress Systems | Fort Myers | FL | — | ◇ UNVERIFIED |
| PSProject Staffing, INC. | Topsham | ME | — | ◇ 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 |
| PIPyramid Industries LLC | Kihei | HI | — | ◇ UNVERIFIED |
| PPPyramid Precast INC | Rialto | CA | — | ◇ UNVERIFIED |
| QCQuad Cities Concrete Products, LLC | Milan | IL | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Refton | PA | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Benson | NC | — | ◇ UNVERIFIED |
| QSQuality Stone Veneer, INC. | Tower City | PA | — | ◇ UNVERIFIED |
| QVQuality Vaults & Monuments, INC. | Ocoee | FL | — | ◇ UNVERIFIED |
| QWQuality Way Products | Holly | MI | — | ◇ UNVERIFIED |
