| Business | Phone |
| Charismac Engineering Inc 9410 Crater Hill Rd, Auburn 95603 | (530) 885-0794 |
| Sierra Phoenix 11768 Atwood Rd, Auburn 95603 | (530) 886-1750 |
| Jreflections Llc 550 Riverview Dr, Auburn 95603 | (530) 888-6517 |
| Softspec Inc 550 High St, Auburn 95603 | (530) 885-7458 |