| O'Dell Construction Inc | 672.9656 | 1448 O'Dell | ||
| O'Reilly Auto Parts | 672.5553 | 1269 Coffeen | ||
| Oakleaf's Lanscape Design & Consulting | 752.5544 | |||
| Occupational & Correctional Solutions | 673.2460 | 45 E Loucks | ||
| Office Barber Shop | 675.1000 | 423 N. Main | ||
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The Office Copy Shop | 674.8248 | 1003 Coffeen | |
| Old West Disposal | 673.1242 | 87 Meade Creek | ||
| Ole's Pizza & Spaghetti House | 672.3636 | 927 Coffeen | ||
| Oliver's Bar & Grill | 672.2838 | 55 N Main | ||
| Olivia's Kitchen | 674.0800 | 137 N Main | ||
| Opie's Mobile Home Transport | 674.6743 | 1031 4th Ave E | ||
| Orkin Inc | 672.9853 | |||
| Osco Pharmacy | 672.8908 | |||
| Outdoor Power Equipment | 674.1965 | 19 Decker | ||
| Outlaw Red Transportation | 673.2615 | 46 Beaver | ||
| Over The Moon Boutique | 673.5991 | 176 N. Main | ||
| Over The Top Beauty Bar | 752.5224 | 306 W Loucks | ||
| Oxygen & Medical Equipment Rental Center | 674.6345 | 36 Paradise |
