| Business | Phone |
| Arrowhead Publishing 7559 Gibraltar St # 14, Carlsbad 92009 | (760) 942-1313 |
| California Aero Press 4025 Royal Dr, Carlsbad 92008 | (760) 729-6887 |
| Penton Overseas Inc 2470 Impala Dr, Carlsbad 92010 | (760) 431-0060 |
| Humanitics Multimedia Pub 6965 El Camino Real # 105, Carlsbad 92009 | (760) 753-4095 |