| Business | Phone |
| Aurora Group Inc 2025 Jefferson St, Napa 94559 | (707) 258-0708 |
| Formatech 3263 Claremont Way # B, Napa 94558 | (707) 258-1492 |
| Medlin Accounting Shareware 1461 Sproul Ave, Napa 94559 | (707) 255-4475 |
| Anderson Technology Group Napa 94558 | (707) 224-0307 |
| Dza 115 Garth St, Napa 94558 | (707) 258-1427 |
| Dza 1412 Banks Ave, Napa 94559 | (707) 254-0602 |
| Grapeline 4035 Malone Dr, Napa 94558 | (707) 224-9852 |
| Info-Eng Inc Napa 94558 | (707) 257-4567 |
| Jps Consulting 1521 Park Ave, Napa 94558 | (707) 224-3419 |
| Munk Consulting & Development 3305 Vichy Ave, Napa 94558 | (707) 255-8184 |