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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 |
|---|---|---|---|
| Jumbolair Aviation & Equestrian Estates | professional services | United States | jumbolair.com |
| Jump Aero | professional services | United States | jumpaero.com |
| Just Jets Services Inc | parts supply | United States | www.justjetsservices.com |
| J. V. Martin | aerospace manufacturing | United States | — |
| Kahn Industries Inc | parts supply | United States | www.kahn.com |
| Kaimana Aviation | flight training | United States | — |
| Kaiser Aircraft Industries | mro | United States | www.kaiseraircraft.com |
| Kalamazoo Aircraft, Inc. | mro | United States | kalamazooaircraft.com |
| Kall Morris Inc | professional services | United States | www.kallmorris.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
| Kaman Aerospace | aerospace manufacturing | United States | www.kaman.com |
| Kaman Air Vehicles | helicopter services | United States | kamanairvehicles.com |
| Kamatics | aerospace manufacturing | United States | kamatics.com |
| Kansas State University Polytechnic Campus | flight training | United States | www.salina.k-state.edu |
| Kaplan Kirsch & Rockwell LLP | professional services | United States | kaplankirsch.com |
| Karem Aircraft | professional services | United States | karemaircraft.com |
| Karmel Connect | fbo ground handling | United States | — |
| Karr Tuttle Campbell | professional services | United States | — |
| KATO Fastening Systems | aerospace manufacturing | United States | www.katofastening.com |
| Katten Muchin Rosenman LLP | professional services | United States | katten.com |
| KAYAK | airlines travel | United States | www.kayak.com |
| KCAC Aviation | private charter | United States | www.kcac.com |
| KC Flight | flight training | United States | www.kcflight.com |
| Kean Miller LLP | professional services | United States | keanmiller.com |
| Kearflex Engineering Co | parts supply | United States | www.kearflex.com |
| Kearfott | avionics systems | United States | www.kearfott.com |
| Kelekona | professional services | United States | kelekona.com |
| Kellstrom Aerospace | parts supply | United States | www.kellstromaerospace.com |
| Kelly Manufacturing Company (RC Allen Instruments) | avionics systems | United States | kellymfg.com |
| Kennon Products | mro | United States | www.kennonproducts.com |
| Kent State University | flight training | United States | www.kent.edu |
| Key Equipment Finance Aviation | professional services | United States | key.com |
| KFAviation | avionics systems | United States | kfaviation.com |
| Kiepura Aviation Corporation | parts supply | United States | kiepuraaviation.com |
| Kiesler Machine Inc. | parts supply | United States | www.kieslermachine.com |
| Kilpatrick Townsend & Stockton LLP | professional services | United States | kilpatricktownsend.com |
| Kim Davidson Aviation, Inc. | avionics systems | United States | kdasmo.com |
| King Aerospace | aerospace manufacturing | United States | kingaerospace.com |
| King Aircraft Title, Inc. | professional services | United States | kingaircrafttitle.com |
| King Air Nation | mro | United States | kingairnation.com |
| King & Spalding LLP | professional services | United States | kslaw.com |
| Kitty Hawk Corporation | professional services | United States | www.kittyhawk.aero |
| K&L Gates LLP | professional services | United States | klgates.com |
| Knots 2U | aerospace manufacturing | United States | www.knots2u.net |
| Kodiak Aircraft (Daher) | aerospace manufacturing | United States | www.kodiakaircraft.com |
| Kollsman, Inc. | avionics systems | United States | elbitsystems-us.com |
| Kontron America | avionics systems | United States | www.kontron.com/en/group/our-compa |
| Korry Electronics | avionics systems | United States | korry.com |
| KP Aviation | parts supply | United States | kpaviation.net |
| KPD Insurance | professional services | United States | kpdinsurance.com |
| Kramer Levin Naftalis & Frankel LLP | professional services | United States | kramerlevin.com |