| Business | Phone |
| Denon & Doyle Mobile D J's 1300 Galaxy Way, Concord 94520 | (925) 944-5021 |
| A Aim To Please Music Dj Svc 1280 Traud Dr, Concord 94518 | (925) 286-9380 |
| A Good Time Music Co Concord 94520 | (925) 685-1931 |
| A Martell Music Entertainment Concord 94520 | (925) 825-6363 |
| A-Plus Entertainment Concord 94520 | (925) 687-2025 |
| Caribbean Rythms Concord 94520 | (925) 687-3950 |
| Chilltown Productions Concord 94520 | (925) 680-4969 |
| Cole's Dj Express 1211 Pine Creek Way, Concord 94520 | (925) 497-3607 |
| D J's 2 Go 115 Roslyn Dr, Concord 94518 | (925) 827-2382 |
| Denon & Doyle Disc Jockey Co 1300 Galaxy Way, Concord 94520 | (925) 944-5021 |
| Musicmakers 916 Autumn Oak Cir, Concord 94521 | (925) 676-4235 |
| Party Central 1785 Montrose Dr, Concord 94519 | (925) 689-9595 |