| Abbreviation | Definition |
|---|---|
| OTE | Organisation for Timeshare in Europe |
| OTE | Organizzazione Trasporti Estero ( Air Freight Italy) |
| OTG | Olive Tree Genealogy |
| OTI | Oak Technology, Incorporated |
| OTI | Object Technology International |
| OTI | Oil Treatment International |
| OTI | Olympus Technologies Inc |
| OTI | OmniTech Industries |
| OTI | On Track Innovations, LTD. |
| OTI | OnTheInternet |
| OTI | Onward Technical Innovation, LLC |
| OTI | Operation Technology, Inc. |
| OTI | Optimization Technology, Inc. |
| OTI | Oregon Tradeswomen Inc |
| OTI | Outsource Technologies Inc |
| OTI | Outsource Technologies, Inc. |
| OTIS | Organization of Teratology Information Specialists |
| OTJ | O'Brien Travis Jaccard Architects |
| OTL | Oklahoma Tank Lines |
| OTL | Optative Theatrical Laboratories |