| Company | City | State / Province | Country | Phone | Website |
|---|---|---|---|---|---|
| Rekers NA, Inc. | Elmsford | NY | US | (914) 347-7446 | rekers.de |
| Risi Stone Systems | Newmarket | ON | CA | (416) 930-9992 | risistone.com |
| Rockwood Retaining Walls | Rochester | MN | US | (507) 535-3512 | rockwoodwalls.com |
| Rockwood Retaining Walls | Rochester | MN | US | (507) 535-3512 | rockwoodwalls.com |
| Romex North America | Burnaby | BC | CA | (844) 529-2330 | romexhardscapes.com |
| Romex Northeast, LLC | Danbury | CT | US | (844) 529-2330 | |
| Sable Marco, Inc. | Pointe-Claire | QC | CA | (866) 999-4509 | evolutionsand.com |
| Sika Canada | Cambridge | ON | CA | (800) 263-6427 | can.sika.com |
| Sika Corporation | Lyndhurst | NJ | US | (201) 933-8800 | usa.sika.com |
| Sika Corporation | Fairfax | VA | US |
Concrete Masonry and Hardscapes Association