| Business | Phone |
| Globe Xplorer Llc 3021 Citrus Cir # 150, Walnut Creek 94598 | (925) 280-8765 |
| Dattar Systems Inc 3093 Citrus Cir, Walnut Creek 94598 | (925) 935-1735 |
| Greek-Inet 205 Castle Hill Ranch Rd, Walnut Creek 94595 | (925) 287-8272 |
| Lexcom Inc 1700 N Broadway, Walnut Creek 94596 | (925) 937-1508 |