| Business | Phone |
| Glenn Staller Classical Concord 94520 | (925) 687-4248 |
| J P Jazz Entertainment Group 4485 Snowberry Ct, Concord 94521 | (925) 798-2241 |
| Luna Productions 812 Blarney Ave, Concord 94518 | (925) 681-0100 |
| Reality Records 2170 Commerce Ave, Concord 94520 | (925) 288-0444 |