Top 15 Companies for O:
- O&S Trucking (3,366)
- O'Charley's (623)
- O'Reilly Auto Parts (6,552)
- Oakley Trucking (7,998)
- Office Depot (4,744)
- OfficeTeam (4,116)
- Old Dominion Freight Line Inc (459)
- Oldcastle Materials (378)
- Olive Garden (2,088)
- Omni Hotels (1,008)
- Omni Hotels & Resorts (374)
- OneStaff Medical (1,155)
- Onin Staffing (386)
- Orbital ATK (405)
- Ozark Motor Lines (1,044)