| Business | Phone |
| Critchley Drafting Svc 1832 Soscol Ave # 109, Napa 94559 | (707) 224-4423 |
| K Hawkins Architectural Detail 1758 Industrial Way # 119, Napa 94558 | (707) 226-9372 |
| Bradford Helman Drafting 101 S Coombs St # Y8, Napa 94559 | (707) 257-7861 |
| Cad & Draft 665 Maplewood Ave, Napa 94558 | (707) 255-1236 |
| J Scott Design 1033 Summit Ave, Napa 94559 | (707) 253-2810 |
| Jacks & Son 1880 Milton Rd, Napa 94559 | (707) 224-0885 |