| AAAlbuquerque Asphalt Plant | Albuquerque | NM | 20–99 | ● ACTIVE |
| BCBestway Concrete CO - Denver | Denver | CO | 20–99 | ● ACTIVE |
Bethlehem Pre-cast INC | Bethlehem | PA | 20–99 | ● ACTIVE |
Castone Corporation | Opelika | AL | 20–99 | ● ACTIVE |
Crest Precast, INC. | La Crescent | MN | 20–99 | ● ACTIVE |
Crystex Composites LLC | Clifton | NJ | 20–99 | ● ACTIVE |
| DIDura-stress, INC | Leesburg | FL | 100–499 | ● ACTIVE |
Engineered Concrete Products LLC | Rapid City | SD | 20–99 | ● ACTIVE |
| FCFibrebond CORP | Minden | LA | 500+ | ● ACTIVE |
| FPFoley Products Company | Hermitage | TN | 20–99 | ● ACTIVE |
Freeberg Industrial Fabrication LLC | Escondido | CA | 100–499 | ● ACTIVE |
Freeman Rock, INC. | Brookings | OR | — | ● ACTIVE |
| FAFront Ave | Portland | OR | 20–99 | ● ACTIVE |
Gallagher Materials CORP. | Thornton | IL | 1–19 | ● ACTIVE |
Gichner Systems Group, INC. | Dallastown | PA | 100–499 | ● ACTIVE |
Gp/rm Prestress, LLC | Kapolei | HI | 100–499 | ● ACTIVE |
High Concrete Group, LLC | Denver | PA | 100–499 | ● ACTIVE |
| HLHubbell Lenoir City, INC. | Lenoir City | TN | 100–499 | ● ACTIVE |
| JHJames Hardie Building Products INC | Pulaski | VA | 100–499 | ● ACTIVE |
| KSKansas Sand & Concrete, INC. | Topeka | KS | 20–99 | ● ACTIVE |
Keizer-morris International INC | North Branch | MI | — | ● ACTIVE |
Knife River Prestress, INC | Newman Lake | WA | 100–499 | ● ACTIVE |
Lakelands Concrete Products, INC. | Lima | NY | — | ● ACTIVE |
Locke Solutions, LLC | Houston | TX | 100–499 | ● ACTIVE |
Lone Star Specialty Products, LLC | Lone Star | TX | — | ● ACTIVE |
Mmc Materials INC | Madison | MS | — | ● ACTIVE |
| MWMountain West Precast LLC | Brigham City | UT | 20–99 | ● ACTIVE |
Nansemond Pre-cast Concrete Company INC | Suffolk | VA | 20–99 | ● ACTIVE |
| NCNgk Ceramics Usa, INC. | Mooresville | NC | 500+ | ● ACTIVE |
| NPNortheast Prestressed Prod LLC | Cressona | PA | 20–99 | ● ACTIVE |
| NSNucor Steel- Berkeley | Huger | SC | 500+ | ● ACTIVE |
| PUPlycem USA LLC | North Wilkesboro | NC | 100–499 | ● ACTIVE |
Pre-con Products | Simi Valley | CA | 20–99 | ● ACTIVE |
| PPPro-cast Products INC | Highland | CA | 100–499 | ● ACTIVE |
Quick Crete Products Corporation | Norco | CA | 100–499 | ● ACTIVE |
Reading Precast INC | Leesport | PA | 20–99 | ● ACTIVE |
Roman Stone Construction Company | Bay Shore | NY | 20–99 | ● ACTIVE |
Sauereisen INC | Pittsburgh | PA | 20–99 | ● ACTIVE |
Stone Building Products, LLC | Greeley | CO | — | ● ACTIVE |
| SISunrock Industries LLC - Muirhead Distribution Center | Durham | NC | 20–99 | ● ACTIVE |
| SISunrock Industries LLC - Rdu Distribution Center | Raleigh | NC | 20–99 | ● ACTIVE |
| SASuzio Asphalt CO Inc, L | Meriden | CT | 1–19 | ● ACTIVE |
| TIThorworks Industries, INC | Sandusky | OH | — | ● ACTIVE |
Veritas Medical Solutions LLC | Harleysville | PA | 20–99 | ● ACTIVE |
Voestalpine Railway Systems Nortrak LLC | Cheyenne | WY | 100–499 | ● ACTIVE |
Welch Bros., INC. | Elgin | IL | 100–499 | ● ACTIVE |
| WCWells Concrete Albany | Albany | MN | 100–499 | ● ACTIVE |
Western Precast Concrete INC | El Paso | TX | 20–99 | ● ACTIVE |
Western Ready-mix, INC | Wentzville | MO | 20–99 | ● ACTIVE |
Willis Construction Company, INC. | San Juan Bautista | CA | 20–99 | ● ACTIVE |