| Company | City | State / Province | Country | Phone | Website |
|---|---|---|---|---|---|
| Northfield an Oldcastle Company Company | Morris | IL | US | (770) 522-5600 | northfieldblock.com |
| Northfield Block - Berea, an Oldcastle Company | Berea | OH | US | (770) 522-5600 | belgard.biz |
| Northfield Block - Bridgeport, an Oldcastle Company | Bridgeport | MI | US | (770) 522-5600 | belgard.biz |
| Northfield Block - Mt. Eaton, an Oldcastle Company | (800) 886-5332 | belgard.biz | |||
| Northfield Block, an Oldcastle APG South Company | Mundelein | IL | US | (847) 949-3600 | |
| Northfield Block, an Oldcastle Company | Indianapolis | IN | US | (770) 522-5600 | belgard.biz |
| Northfield Block, an Oldcastle Company | (800) 227-6512 | belgard.biz | |||
| Northfield Block, an Oldcastle Company | Morris | IL | US | (770) 522-5600 | northfieldblock.com |
| Northfield Block, an Oldcastle Company | West Bend | WI | US | (770) 522-5600 | northfieldblock.com |
| Northfield Block, an Oldcastle Company | Bonner Springs | KS | US | (770) 522-5600 |
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