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All Participants' Companies to Date |
| Aggregates USA | APAC - Kansas City |
| Associated Asphalt | Barrett Paving Materials |
| Bayou Concrete | Bedrock Resources |
| Blue Water Industries | Boxley Materials Company |
| Braen Stone Industries | Caldwell Stone Co |
| Cemex | Central Sand and Gravel |
| Concrete Materials | Concrete Supply Company |
| CRH Americas | ELRUS |
| Fred Weber, Inc | Fullen Dock and Warehouse |
| Gerken Materials Inc. | Granite Construction Company |
| Hamm Inc | IA Construction |
| Irving Materials, Inc. | John Deere Construction and Forestry |
| Knife River | LG Everist, Inc |
| Lannon Stone Products | Lehigh Hanson |
| Luck Stone | Martin Marietta |
| Materials Sales Company | MMC Materials, Inc |
| Mulzer Crushed Stone | Nugent Sand Company |
| Oldcastle Materials | Ondrick Materials |
| Ozinga | Peckham Industries |
| Pine Bluff Materials | Premier Aggregates |
| Rogers Group | Summit |
| Thomas Concrete | Titan America |
| Trinity Materials | VCNA United Materials |
| Vulcan Materials Company | Wake Stone Corporation |
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