| Company | City | State / Province | Country | Phone | Website |
|---|---|---|---|---|---|
| Richvale York Block, Inc. | London | ON | CA | (519) 455-4741 | richvaleyork.com |
| Richvale York Block, Inc. | Gormley | ON | CA | (416) 213-7444 | richvaleyork.com |
| RidgeRock Retaining Walls | Charlotte | NC | US | (704) 504-3358 | ridge-rock.com |
| Robinson Brick Company | Billings | MT | US | (423) 282-4661 | |
| Rochester Concrete Products | Rochester | MN | US | (507) 288-8850 | rochestercp.com |
| Rochester Concrete Products - Beaver Dam | Juneau | WI | US | (507) 288-8850 | rochestercp.com |
| Rochester Concrete Products - Jordan | Jordan | MN | US | (507) 288-8850 | rochestercp.com |
| Rochester Concrete Products - Rochester | Rochester | MN | US | (507) 288-8850 | rochestercp.com |
| Rochester Concrete Products - Thorp | Thorp | WI | US | (507) 288-8850 | rochestercp.com |
| Santerra Stonecraft | Amherstburg | ON | CA | (519) 726-5444 | santerrastonecraft.com |
Concrete Masonry and Hardscapes Association