| Company | City | State / Province | Country | Phone | Website |
|---|---|---|---|---|---|
| LANXESS Corporation | Pittsburgh | PA | US | (412) 809-2214 | bayferrox.us |
| LATICRETE International, Inc. | Bethany | CT | US | (203) 393-0010 | laticrete.com |
| Lehigh White Cement Co. | West Palm Beach | FL | US | (813) 248-4000 | lehighwhitecement.com |
| Lehigh White Cement Co. | Irving | TX | US | lehighwhitecement.com | |
| Lehigh White Cement Co. | Allentown | PA | US | (800) 961-5932 | lehighwhitecement.com |
| Lehigh White Cement Co. | Tampa | FL | US | (813) 248-4000 | lehighehitecement.com |
| Lingl Installation & Service Co. Inc. | Greensboro | NC | US | (336) 542-0022 | lingl-usa.com |
| MaintainX | San Francisco | CA | US | (415) 548-4001 | maintainx.com |
| Mangrove | Caledonia | MI | US | (616) 271-6800 | mangrove3d.com |
| MAPEI Corp. | Deerfield Beach | FL | US | (954) 246-8885 | mapei.com |
Concrete Masonry and Hardscapes Association