| Business | Phone |
| Carpenters Joint Apprenticeshp 8595 Miralani Dr, San Diego 92126 | (858) 621-2667 |
| Southern California Painters 8250 Ronson Rd, San Diego 92111 | (858) 279-7289 |
| San Diego Electrical Training 4675 Viewridge Ave, San Diego 92123 | (858) 569-6322 |
| S D County Pipe Trades 6225 Federal Blvd, San Diego 92114 | (619) 262-7588 |