| TCTindall Corporation - Georgia Division | Conley | GA | 100–499 | ◐ LIKELY ACTIVE |
| TCTindall Corporation - Virginia Division | Petersburg | VA | 100–499 | ◐ LIKELY ACTIVE |
| TATinsley Asphalt, LLC | South Pittsburg | TN | — | ◐ LIKELY ACTIVE |
| TATinsley Asphalt Products, LLC | Decherd | TN | — | ◐ LIKELY ACTIVE |
| TATinsley Asphalt Products, LLC - Mcminnville Plant | Mcminnville | TN | — | ◐ LIKELY ACTIVE |
| TATitan America Tarmac | Tavares | FL | — | ◐ LIKELY ACTIVE |
| TFTitan Florida Llc, Anderson Rd Ready Mix Plant | Tampa | FL | — | ◐ LIKELY ACTIVE |
| TFTitan Florida LLC - West Palm Beach, Fairgrounds Road | West Palm Beach | FL | — | ◐ LIKELY ACTIVE |
| TDTitan-orlando Downtown Cbp | Orlando | FL | — | ◐ LIKELY ACTIVE |
| TITmc INC | Idaho Falls | ID | — | ◐ LIKELY ACTIVE |
| TMT. Miozzi, INC. | North Kingstown | RI | — | ◐ LIKELY ACTIVE |
| TCTnt Concrete Batch Plant_green Cove Springs | Green Cove Springs | FL | — | ◐ LIKELY ACTIVE |
| TRTnt Ready Mix | Green Cove Springs | FL | — | ◐ LIKELY ACTIVE |
| TCTodd CO Holdings LLC D/b/a Todd CO Stone | Elkton | KY | — | ◐ LIKELY ACTIVE |
| TRTower Rock Stone Company | Ste. Genevieve | MO | — | ◐ LIKELY ACTIVE |
| TCTownes Construction Company INC | Grenada | MS | — | ◐ LIKELY ACTIVE |
| TRTransco Ready Mix - Barker | Houston | TX | 1–19 | ◐ LIKELY ACTIVE |
| TRTransco Ready Mix - Conroe | Conroe | TX | 1–19 | ◐ LIKELY ACTIVE |
| TRTransco Ready Mix - Spring | Spring | TX | 20–99 | ◐ LIKELY ACTIVE |
| TRTrap Rock Industries Pennington Plnt | Pennington | NJ | — | ◐ LIKELY ACTIVE |
| TQTrautman Quarry | Pevely | MO | — | ◐ LIKELY ACTIVE |
Treasure State Concrete, INC. | Polson | MT | — | ◐ LIKELY ACTIVE |
| TRT R Huffman & Sons | Mouth of Wilson | VA | — | ◐ LIKELY ACTIVE |
| TCTri CO Ready Mix - London Division | London | KY | — | ◐ LIKELY ACTIVE |
| TCTriple Crown Concrete a Division of Hinkle Contracting CO Llc-lexington | Lexington | KY | — | ◐ LIKELY ACTIVE |
| TCTriple Crown Concrete a Division of Hinkle Contracting CO Llc-somerset | Somerset | KY | — | ◐ LIKELY ACTIVE |
| TMTri-star Mining - Hampshire Hill Mine (no. 419) | Barton | MD | — | ◐ LIKELY ACTIVE |
| TRTri-state Ready Mix | Byhalia | MS | — | ◐ LIKELY ACTIVE |
| TITrombley Industries, INC. | Limestone | ME | — | ◐ LIKELY ACTIVE |
| TRTropical Roofing Products | Hallandale | FL | 20–99 | ◐ LIKELY ACTIVE |
| TPTroy Pit | Troy | TN | — | ◐ LIKELY ACTIVE |
| TGTrulite Glass & Alluminum Solutions | City of Industry | CA | 20–99 | ◐ LIKELY ACTIVE |
| TGTrulite Glass - Aluminum Solutions, LLC | Youngsville | NC | 20–99 | ◐ LIKELY ACTIVE |
| TGTrulite Glass and Aluminum Solutions | Indianapolis | IN | 20–99 | ◐ LIKELY ACTIVE |
| TGTrulite Glass and Aluminum Solutions | Las Vegas | NV | 20–99 | ◐ LIKELY ACTIVE |
| TGTrulite Glass and Aluminum Solutions, LLC | New Berlin | WI | 20–99 | ◐ LIKELY ACTIVE |
| TRT. R. Vernal Paving, INC. | Raleigh | NC | — | ◐ LIKELY ACTIVE |
| TSTucci & Sons Mcchord Plant | Tacoma | WA | — | ◐ LIKELY ACTIVE |
| TITwed-dell's INC. | Santa Ana | CA | — | ◐ LIKELY ACTIVE |
| TCTwin Cities Ready Mix, Inc.-eufaula Facility | Eufaula | OK | — | ◐ LIKELY ACTIVE |
| TKTwin K Enterprises LLC | Oneida | TN | — | ◐ LIKELY ACTIVE |
| T1Txi-portable 132 @ Aep-welsh Plant | Pittsburg | TX | — | ◐ LIKELY ACTIVE |
| UCUnimin Corporation | Gleason | TN | — | ◐ LIKELY ACTIVE |
| UCUnion City | Union City | CA | 20–99 | ◐ LIKELY ACTIVE |
| UQUnion Quarries Inc/bonny Brook | Carlisle | PA | — | ◐ LIKELY ACTIVE |
| UCUniontown Concrete Plt | Hopwood | PA | — | ◐ LIKELY ACTIVE |
| UMUnited Memorial Products, Whittier | Whittier | CA | 20–99 | ◐ LIKELY ACTIVE |
| UPUnited Plate Glass Company (Butler) | Butler | PA | 100–499 | ◐ LIKELY ACTIVE |
United States Gypsum Company | Spruce Pine | NC | — | ◐ LIKELY ACTIVE |
| UCU.s. Concrete Products | Brooklyn | MD | — | ◐ LIKELY ACTIVE |