Alphabetical company index for letter/character "O"
- O'Charley's
- O'Reilly Auto Parts
- Obagi Skin Care
- Oberweis Dairy
- Ocean State Job Lot
- Off Broadway Shoes
- Office Depot
- OfficeMax
- Old Navy
- Old Town Canoes & Kayaks
- Olive Garden
- Ollie's Bargain Outlet
- Olympia Sports
- Omega
- Omega Bus Charter Rental
- On The Border
- On The Run
- Once Upon A Child
- Oneida
- Orange Leaf Frozen Yogurt
- Oreck
- Origins
- Orkin Pest Control
- OROGOLD Cosmetics
- Orscheln Farm & Home
- Orvis
- OSH (Orchard Supply Hardware)
- OshKosh B'gosh
- Osterman Jewelers
- Outback Steakhouse
- Outdoor Research
- Overland