| Business | Phone |
| A 21st Century Sounds Dj Co 1372 N Main St # 204, Walnut Creek 94596 | (925) 938-2858 |
| A Five Star Disc Jockey Po Box 31332, Walnut Creek 94598 | (925) 429-2980 |
| Joel Nelson Productions 1157 Sartoga Ave, Walnut Creek 94596 | (925) 930-0400 |
| Mobile Sound Mix Po Box 455, Walnut Creek 94597 | (925) 753-5958 |
| Mr Mac Music Shows Walnut Creek 94596 | (925) 988-8070 |
| Royal Sound Entertainment Walnut Creek 94596 | (925) 939-3535 |