| Business | Phone |
| Brooks Products Inc 1850 S Parco Ave, Ontario 91761 | (909) 947-7470 |
| Han-Crete Products Inc 2010 S Cucamonga Ave, Ontario 91761 | (909) 947-1543 |
| Johnson Bateman Co 5125 Ontario Mills Pkwy, Ontario 91764 | (909) 980-2293 |
| Southwest Concrete Products 519 S Benson Ave, Ontario 91762 | (909) 983-9789 |