| Company | Category | Area | Address | Web | Contact person | |
| OSTARS COOKIES | Cookies & Crackers-Manufacture | California | 49 MARIN AVE, SAUSALITO, Marin, California, 94965-1772, USA | - | - | - |
| OSTAS LEBANESE CUISINE | Eating Places | Michigan | 2228 WEALTHY ST SE, GRAND RAPIDS, Kent, Michigan, 49506-3016, USA | - | - | JOHN AOUAD |
| OSTASH FAMILY INVESTMENTS | Trust Management | Arizona | 11083 E ACACIA DR, SCOTTSDALE, Maricopa, Arizona, 85255-2418, USA | - | - | Ronald Ostash |
