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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 |
|---|---|---|---|
| Regional Sky | private charter | United States | www.regionalsky.com |
| Reliable Jet Maintenance | avionics systems | United States | www.reliablejet.com |
| Reliable Luxury Car and Limousine Service | fbo ground handling | United States | www.1reliablelimo.com |
| Reliable Robotics | professional services | United States | reliable.co |
| Reliance Aerospace Assets | parts supply | United States | relianceaerospace.net |
| Reliance Aerotech Services | professional services | United States | www.reliance.aero |
| Reliance Aircraft International, LLC | parts supply | United States | relianceaircraft.com |
| Reliance Aviation Miami | fbo ground handling | United States | www.reliance-aviation.com |
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
| Remsa and Care Flight |
| air medical |
| United States |
| www.remsahealth.com |
| Republic Financial Corporation | professional services | United States | republic-financial.com |
| REVA Air Ambulance | air medical | United States | www.flyreva.com |
| Revolution Aircraft Services, LLC | parts supply | United States | revolutionfyi.com |
| Rexair | flight training | United States | rexair.net |
| Rich Aviation Services | flight training | United States | www.richaviation.com |
| Richmond Executive Aviation | flight training | United States | — |
| Rick Aviation Flight Training | flight training | United States | www.rickaviation.com |
| Ridelux | fbo ground handling | United States | ridelux.com |
| Ride Luxury Car | fbo ground handling | United States | www.rideluxurycar.com |
| RidgeAire Worldwide Aviation | professional services | United States | www.ridgeaire.com |
| Ridge Landing Airpark | professional services | United States | www.ridgelandingairpark.com |
| Right Rudder Marketing | professional services | United States | rightruddermarketing.com |
| RIM Alliance (RIM Enterprises, LLC) | parts supply | United States | www.rim-alliance.com |
| Risk Strategies Company - Aviation | professional services | United States | risk-strategies.com |
| Rison Aviation | flight training | United States | www.risonav.com |
| Riveer | mro | United States | riveer.com |
| Riverside Flight Center | flight training | United States | www.riversideflightcenter.com |
| River Town Aircraft Services, LLC | mro | United States | rivertownaviation.com/aircraft-ser |
| RMA Worldwide Chauffeured Transportation | fbo ground handling | United States | www.rmalimo.com |
| RN Mediflights | air medical | United States | rnmedflights.com |
| Robins Kaplan LLP | professional services | United States | robinskaplan.com |
| Robinson & Cole LLP | professional services | United States | rc.com |
| Robinson Helicopter Company | aircraft management | United States | www.robinsonheli.com |
| Rochester Aviation | flight training | United States | www.flyskyhaven.com |
| Rochester Sensors (formerly Rochester Gauges) | parts supply | United States | rochestersensors.com |
| Rockwell Automation | professional services | United States | rockwellautomation.com |
| Rocky Mountain College | flight training | United States | www.rocky.edu |
| Rocky Mountain Flight School | flight training | United States | www.rmflight.com |
| Romanair WDR, Inc. | mro | United States | romanair.com |
| Rosen Aviation | aerospace manufacturing | United States | rosenaviation.com |
| Rosen Sunvisor Systems | aerospace manufacturing | United States | www.rosenvisor.com |
| Rotabull | parts supply | United States | rotabull.com |
| Rotair Aerospace Corporation | parts supply | United States | www.rotair.com |
| ROTAK Helicopter Services | cargo logistics | United States | rotakheli.com |
| Rotorcraft Services Group Aviation | helicopter services | United States | rotorcraftservices.com |
| Rotorcraft Support | helicopter services | United States | www.rotorcraftsupport.com |
| RotorHub International | helicopter services | United States | www.rotorhub.com |
| Rotormate | helicopter services | United States | www.rotormate.com |
| RotorPart | helicopter services | United States | rotorpart.com |
| Royal Air Flight Training | flight training | United States | — |
| Royal Aviation | flight training | United States | www.royalaviation.net |