| O.E.T. Ltd. |
| Oasis Property Services Ltd. |
| Oasis Water Service |
| OBM International Limited – Architects, Interior Designers & Landscape Architects |
| Occasions Bridal & Formal |
| Occupational Safety & Health Office |
| Ocean Breeze Sail Charters |
| Ocean Sails Custom Canvas & Upholstery |
| Ocean Spa at Cambridge Beaches |
| Ocean Spray Contractors |
| Ocean Terrace Guest House |
| Ocean View Golf Course |
| Ocean Winds Ltd. |
| OCT |
| OD Solutions International |
| Odd Jobs |
| Odd Jobs & Maintenance |
| Office & Home Cleaning Services |
| Office of the Premier |
| Office Solutions |
| Offshore Yachting & Maintenance Ltd. |
| Oil Casualty Insurance, Ltd. |
| Oil Casualty Investment Corporation Ltd. |
| Oil Insurance Limited |
| Oil Investment Corporation Ltd. |
| Oil Management Services Ltd. |
| Old Mutual (Bermuda) Ltd. |
| Old Mutual Asset Managers (Bermuda) Limited |
| Olden Enterprises |
| Oleander Cycles Ltd. |
| Oleksak, Dr. Milan |
| Olivieri, Luciano - Tiling |
| Olympia Capital International Inc. |
| Olympic Club, The |
| Olympus Re |
| Omakase – Sushi Bar |
| OMax Ceramics |
| OMax Graphics |
| Omnes Ltd. |
| On Course Contracting |
| ON Semiconductor Trading, Ltd. |
| One Man & A Tool Bag |
| One Way Construction |
| Onion Doors & Windows |
| Onion Jack's Trading Post |
| Onion Patch Pre-School, The |
| Onionpatch Landscape Consulting Services |
| Onsite Engineering Services Ltd. |
| Open Door Christian Assembly |
| Operation Respect, Bermuda |
| Ophelia’s Beauty Salon |
| Optima Fund Management |
| Optimum Risk Research (Bermuda) Limited |
| Opus Lounge |
| Oracle Management Ltd. |
| Orbis Investment Management Ltd. |
| Orchid Charity Club, The |
| Ord Road Laundry |
| Ordinance Holdings Ltd |
| Original Man Products |
| Original Trucking & Bobcat Service |
| Ornamental Electronics |
| Ornamental Ironworks Ltd. |
| Otis Elevator Co. (Bermuda) Ltd. |
| Otto Trott Art Studio |
| Otto Wurz |
| Out Of Bounds Restaurant & Bar |
| Outerbridge Peppers Ltd. |
| Outerbridge, Dr. Wendy |
| Outerbridge, Liza – Sales Associate |
| Outerbridge’s Machining & Welding Services |
| Outlet, The |
| Outsource Ltd. |
| Outwardvision |
| Overnight Construction |
| Overproof Charter Fishing |
| Oxford Guest House |
| Oxygen Ltd. |
