| Company | Category | Area | Address | Web | Contact person | |
| HDSI PROPERTY MANAGEMENT | Real Estate Management | California | 3460 S BROADWAY, LOS ANGELES, Los Angeles, California, 90007-4409, USA | - | - | Noel Sweitzer |
| HDSM INC | Electronic Messaging Consultan | Alabama | 4042 HENNING DR S, MOBILE, Mobile, Alabama, 36619-9253, USA | - | - | Peter Carter |
