| JLJuul Labs, INC. | Durham | NC | — | ◐ LIKELY ACTIVE |
| KCKay Concrete Materials-aurora | Aurora | MO | — | ◐ LIKELY ACTIVE |
| KWKc Wilbert Vault | Grandview | MO | — | ◐ LIKELY ACTIVE |
| KCKelly's Concrete & Building Materials INC | Fremont | CA | — | ◐ LIKELY ACTIVE |
| KCKentucky Concrete INC E-town # 1 | Elizabethtown | KY | — | ◐ LIKELY ACTIVE |
| KCKentucky Concrete INC - Shelby CO Concrete INC | Shelbyville | KY | — | ◐ LIKELY ACTIVE |
| KRKern's Ready Mixed Concrete, INC. | Stillwater | OK | — | ◐ LIKELY ACTIVE |
| KRKerr's Redi Mix INC | Centre | AL | — | ◐ LIKELY ACTIVE |
| KIKester INC | Bensenville | IL | — | ◐ LIKELY ACTIVE |
| KCKienstra Concrete (missouri Bottom Rd) | Bridgeton | MO | — | ◐ LIKELY ACTIVE |
| KCKl - Chempak | Greenville | SC | — | ◐ LIKELY ACTIVE |
| KCKl Chempak, INC. | Lester | PA | — | ◐ LIKELY ACTIVE |
| KRKnight's Redi-mix (jedburg Facility) | Summerville | SC | — | ◐ LIKELY ACTIVE |
| KCKuhlman Concrete, LLC | Fort Myers | FL | — | ◐ LIKELY ACTIVE |
| KKKwik Kleen | Pomona | CA | — | ◐ LIKELY ACTIVE |
| LPLafarge Powers Ready Mix | Carbondale | CO | — | ◐ LIKELY ACTIVE |
| LCLandus Cooperative | Ralston | IA | — | ◐ LIKELY ACTIVE |
| LSLan Se, LLC Dba Gate Precast Company | Ashland City | TN | — | ◐ LIKELY ACTIVE |
Leo O'laughlin Inc-leo O'laughlin INC | Shelbina | MO | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company, INC. | Mendenhall | MS | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company Inc, Lexington Plant | Lexington | MS | — | ◐ LIKELY ACTIVE |
| LCLexington Concrete and Block Company Inc, Pearl Plant | Pearl | MS | — | ◐ LIKELY ACTIVE |
| LRLincoln Ready Mix Concrete | Lincoln | DE | — | ◐ LIKELY ACTIVE |
| LLLiquid Labs LLC | Toms River | NJ | — | ◐ LIKELY ACTIVE |
| LPLongleaf Packaging | Holly Hill | SC | — | ◐ LIKELY ACTIVE |
| LRLoveland Ready Mix | Loveland | CO | — | ◐ LIKELY ACTIVE |
| LSLuck Stone | Burkeville | VA | — | ◐ LIKELY ACTIVE |
| LSLuck Stone - South Richmond Plant | Richmond | VA | — | ◐ LIKELY ACTIVE |
| MCMagnolia Cbp | Magnolia | TX | — | ◐ LIKELY ACTIVE |
| MRMainline Ready Mix | Fort Myers | FL | — | ◐ LIKELY ACTIVE |
| MIManatts INC | Ankeny | IA | — | ◐ LIKELY ACTIVE |
| MCMarshall Concrete | Christiansburg | VA | — | ◐ LIKELY ACTIVE |
| MCMaschmeyer Concrete - Okeechobee Plant | Okeechobee | FL | — | ◐ LIKELY ACTIVE |
| MPMetro Products & Const-robeson | Lumberton | NC | — | ◐ LIKELY ACTIVE |
| MRMetro Ready Mix | Prince George | VA | — | ◐ LIKELY ACTIVE |
| MCMeuth Concrete - Cadiz Plant | Cadiz | KY | — | ◐ LIKELY ACTIVE |
| MCMeuth Construction Supply | Madisonville | KY | — | ◐ LIKELY ACTIVE |
| MMMeyer Material | Mchenry | IL | — | ◐ LIKELY ACTIVE |
| MBMichels Batch Plant - Berthold | Berthold | ND | — | ◐ LIKELY ACTIVE |
| MBMidwest Block & Brick-kansas City Plant | Kansas City | MO | — | ◐ LIKELY ACTIVE |
| MCMidwest Concrete Materials - Lawrence (e 23rd)(air) | Lawrence | KS | — | ◐ LIKELY ACTIVE |
| MCMidwest Concrete Materials - Plant #36 (air) | Ottawa | KS | — | ◐ LIKELY ACTIVE |
| MPMidwest Products - Hanover Plant | Hanover | KS | — | ◐ LIKELY ACTIVE |
| MPMidwest Products - Washington Plant | Washington | KS | — | ◐ LIKELY ACTIVE |
| MCMilestone Contractors, L.p. | New Haven | IN | — | ◐ LIKELY ACTIVE |
| MRMintek Resources Incorporated | Indianapolis | IN | — | ◐ LIKELY ACTIVE |
| MRMission Ready Mix - Goleta | Goleta | CA | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Amory | Amory | MS | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Greenwood | Greenwood | MS | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Indianola | Indianola | MS | — | ◐ LIKELY ACTIVE |
| MMMmc Materials, INC. - Memphis (old US 78 Plant) | Memphis | TN | — | ◐ LIKELY ACTIVE |
| MMMmc Materials, INC. Oakland | Oakland | TN | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Wiggins | Wiggins | MS | — | ◐ LIKELY ACTIVE |
| MMMmc Materials Inc, Winona | Winona | MS | — | ◐ LIKELY ACTIVE |
Molecular Products, INC | Boulder | CO | — | ◐ LIKELY ACTIVE |
| MPMonarch Products Company INC - Strinestown | York | PA | — | ◐ LIKELY ACTIVE |
| MCMountain Cement CO | Denver | CO | — | ◐ LIKELY ACTIVE |
| MPMountain Park Concrete INC | Granby | CO | — | ◐ LIKELY ACTIVE |
| MHMt Holly Concrete CO | Mount Holly | NJ | — | ◐ LIKELY ACTIVE |
| MMMt. Meigs Plant | Mount Meigs | AL | — | ◐ LIKELY ACTIVE |
| MFMultisorb Filtration Group, Harlem Road Facility | Buffalo | NY | — | ◐ LIKELY ACTIVE |
| NRNashville Ready Mix | Mount Juliet | TN | — | ◐ LIKELY ACTIVE |
| NRNashville Ready Mix Franklin Plant | Franklin | TN | — | ◐ LIKELY ACTIVE |
| NRNashville Ready Mix INC. | Clarksville | TN | — | ◐ LIKELY ACTIVE |
| NRNashville Ready Mix Shop | Nashville | TN | — | ◐ LIKELY ACTIVE |
| NPNbn Powder Packaging LLC | Elyria | OH | — | ◐ LIKELY ACTIVE |
| NCNew Canton Concrete | — | VA | — | ◐ LIKELY ACTIVE |
| NPNewport Paving Company, INC. - Asphalt Plant 4 & Charles Blalock & Sons, INC. Db | Newport | TN | — | ◐ LIKELY ACTIVE |
| NBNiederwald Batch Plant 1 | Niederwald | TX | — | ◐ LIKELY ACTIVE |
| NANorthwest Aggregates Snoqualmie | Snoqualmie | WA | — | ◐ LIKELY ACTIVE |
| NRNorthwest Ready-mix | Ocheyedan | IA | — | ◐ LIKELY ACTIVE |
| NANov Ameron | Anniston | AL | — | ◐ LIKELY ACTIVE |
| OAOkeechobee Asphalt/concrete Plant, Cw Roberts Contracting INC. | Okeechobee | FL | — | ◐ LIKELY ACTIVE |
| OAOldcastle Apg South, INC. | Auburndale | FL | — | ◐ LIKELY ACTIVE |
| OPOldcastle Precast | Ogden | UT | — | ◐ LIKELY ACTIVE |
| OSOldcastle Sw Group Dba Telluride Gravel | Telluride | CO | — | ◐ LIKELY ACTIVE |
| OSOldcastle Sw Group INC Dba Four Corners | Pagosa Springs | CO | — | ◐ LIKELY ACTIVE |
| OSOldcastle Sw Group INC Dba United CO of | Paonia | CO | — | ◐ LIKELY ACTIVE |
| OCOlympic Chemical CORP | Tacoma | WA | — | ◐ LIKELY ACTIVE |
| OROrgain Ready Mix Concrete Co., INC. | Clarksville | TN | — | ◐ LIKELY ACTIVE |
| OMOutback Materials | Friant | CA | — | ◐ LIKELY ACTIVE |
| OIOuzts-wilbert INC | Florence | SC | — | ◐ LIKELY ACTIVE |
| ODOxford Division of B and B Concrete Company INC | Oxford | MS | — | ◐ LIKELY ACTIVE |
| OBOzinga Brothers, INC. | New Buffalo | MI | — | ◐ LIKELY ACTIVE |
Pacific Industrial Development Corporation | Spartanburg | SC | — | ◐ LIKELY ACTIVE |
| PMPaw Materials, INC | Land O Lakes | FL | — | ◐ LIKELY ACTIVE |
| PJPenn Jersey Building Materials-pleasantville Plant (form:eastern Transit Mix) | Egg Harbor | NJ | — | ◐ LIKELY ACTIVE |
| PRPensacola Ready Mix USA | Gulf Breeze | FL | — | ◐ LIKELY ACTIVE |
| PRPhoenix Recycling | Ashland | VA | — | ◐ LIKELY ACTIVE |
| PBPierce Biotechnology INC | Rockford | IL | — | ◐ LIKELY ACTIVE |
| PBPine Belt Ready Mix, Glendale Avenue Plant | Hattiesburg | MS | — | ◐ LIKELY ACTIVE |
| PRPolitte Ready Mix-arcadia | Arcadia | MO | — | ◐ LIKELY ACTIVE |
| PRPowhatan Ready Mix - Flat Rock | Powhatan | VA | — | ◐ LIKELY ACTIVE |
| PMPreferred Materials Ab Ready Mix - Daytona Cbp | Daytona Beach | FL | — | ◐ LIKELY ACTIVE |
| PMPreferred Materials Cbp-kissimmee | Kissimmee | FL | — | ◐ LIKELY ACTIVE |
| PMPreferred Materials - Fmm Blvd Facility | Jacksonville | FL | — | ◐ LIKELY ACTIVE |
| PMPreferred Materials - Spring Hill Facility | Spring Hill | FL | — | ◐ LIKELY ACTIVE |
| PWProfessional Water Technologies | Vista | CA | — | ◐ LIKELY ACTIVE |
| PIPro-mix INC. / Structural Prestressed Industries | Medley | FL | — | ◐ LIKELY ACTIVE |
| PIPump-crete Inc-winter Haven Facility | Winter Haven | FL | — | ◐ LIKELY ACTIVE |