| Business | Phone |
| David Barker Phd 2639 West Canyon Ave # 474, San Diego 92123 | (626) 303-4064 |
| Economics Research Assoc 600 B St, San Diego 92101 | (619) 237-1227 |
| San Diego Economic Consultants 1516 W Redwood St, San Diego 92101 | (619) 692-3137 |
| Regional Economic Research Inc 11236 El Camino Real, San Diego 92130 | (858) 481-0081 |