| Business | Phone |
| Banshee Construction Co 1600 E Steel Rd, Colton 92324 | (909) 824-0393 |
| Joe Verska General Engineering 1610 W Pellisier Rd, Colton 92324 | (951) 683-0313 |
| Moss Equipment Rental 309 W Congress St, Colton 92324 | (909) 824-1991 |
| Pacific Constr & Engineering 2124 Harris St, Colton 92324 | (909) 825-5271 |
| Pacific Equity Engineering Colton 92324 | (909) 422-0400 |