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5,910 checked entries across 18 sectors. Every listing carries the source and date of its data.
| Company | Sector | Location | Website |
|---|---|---|---|
| Nuhma Inflight Dining | fbo ground handling | United States | www.nuhmanyc.com |
| Nulton Aviation Services, Inc. | flight training | United States | www.nultonaviation.com |
| Nutsch Aviation | flight training | United States | www.nutsch.com |
| NW Wings Aviation | flight training | United States | www.nwwafly.com |
| NYC EXECUTIVE LIMO SERVICES | fbo ground handling | United States | www.nycexecutivelimo.com |
| NYC Luxor Limo | fbo ground handling | United States | nycluxorlimo.com |
| NYC Luxury Club Transportation | fbo ground handling | United States | nycluxuryclub.com |
| NY NJ Limousine | fbo ground handling | United States | nynjlimousine.com |
| OakTree Aviation Services LLC |
Private Charter 2,487Flight Training 715Professional Services 626Parts & Equipment 374Aerospace Manufacturing 347Airlines & Travel 278Air Ambulance & Medical 246Maintenance & Repair (MRO) 192Avionics & Systems 189Cargo & Logistics 178FBO & Ground Handling 176Helicopter Services 49Drone & UAV 17Aircraft Management 13Defence & Government 8Events & Associations 7Airports 5Universities & Research 3
| professional services |
| United States |
| oaktreeaviation.com |
| OBXFLIGHT, LLC. | flight training | United States | — |
| Ocala Aviation Services, Inc. | flight training | United States | www.ocalaaviation.com |
| Ocean Aviation Flight Academy | flight training | United States | www.flyoceanaviation.com |
| Ocean Breeze Aviation, LLC | flight training | United States | — |
| Ochsner Flight Care | air medical | United States | www.ochsner.org |
| OCR Aviation | mro | United States | www.ocraviation.com |
| Odys Aviation | professional services | United States | www.odysaviation.com |
| Odyssey Aero Group | parts supply | United States | odysseyaero.net |
| Odyssey Re | professional services | United States | odysseyre.com |
| OH Capital Assets, Inc. | parts supply | United States | ohc.aero |
| OHSU PANDA Pediatric and Neonatal Transport | air medical | United States | www.ohsu.edu/doernbecher/pediatric |
| OK3 AIR | flight training | United States | www.ok3.aero |
| Oklahoma Aeronautics Academy | flight training | United States | www.okaero.net |
| Oklahoma Aviation | flight training | United States | www.oklahomaaviation.com |
| Old Republic Aerospace | professional services | United States | oldrepublicaerospace.com |
| Old Sod Travel | airlines travel | United States | www.oldsodtravel.com |
| Omega Aviation, Inc. | parts supply | United States | www.omegaaviation.com |
| OMI Specialty Products | parts supply | United States | omispec.com |
| Omnetics Connector Corporation | avionics systems | United States | www.omnetics.com |
| Omni Aerospace Inc. | parts supply | United States | www.omniks.com |
| OnAV | avionics systems | United States | onav.us |
| On Call International | air medical | United States | www.oncallinternational.com |
| One Call Medical Transports | air medical | United States | ocmt.com |
| One Stop Systems | avionics systems | United States | onestopsystems.com |
| Ontic | mro | United States | www.ontic.com |
| OpenAir Flight Training | flight training | United States | www.flyopenair.com/flight-training |
| Opener | professional services | United States | — |
| Oracle | fbo ground handling | United States | www.oracleaviation.com |
| Organization of Black Aerospace Professionals | flight training | United States | obap.org |
| Orient Flight School | flight training | United States | orientflightschool.com |
| Orlando Gateway Sport Pilot Training Center LLC | flight training | United States | — |
| Otto Aviation | professional services | United States | www.ottoaviation.com |
| OTTO Instrument Service | mro | United States | www.ottoinstrument.com |
| Outerlink Global Solutions | avionics systems | United States | www.outerlink.com |
| Ovation | professional services | United States | www.ovationxp.com |
| Overseas Aircraft Parts, Inc. | parts supply | United States | oapinc.com |
| Over The Mountain Aviation | flight training | United States | www.otmaviation.com |
| Owens Flight Training | flight training | United States | www.owensflighttraining.com |
| Owl Aerospace, Inc. | parts supply | United States | owlaerospace.com |
| Ozarka College | flight training | United States | fly.ozarka.edu |
| Ozark Aircraft Maintenance | mro | United States | www.ozarkaircraftmaintenance.com |