| 121 Inflight Catering | fbo ground handling | New York |
| 1st Source Bank | professional services | Indiana |
| 2Fly Airborne | flight training | Florida |
| 3D Robotics | aerospace manufacturing | California |
| 43 North Aviation | flight training | Idaho |
| 5B Aviation, LLC. | flight training | Oklahoma |
| 7:47 Aviation, Inc. | flight training | New York |
| 88WEST Aviation | private charter | Wisconsin |
| A1 Chicago Limo Services | fbo ground handling | Illinois |
| AAA Air Support | parts supply | California |
| A&A Coatings | aerospace manufacturing | — |
| Abercrombie & Kent | airlines travel | — |
| AB Jets | private charter | Tennessee |
| About Time Aviation | flight training | Oregon |
| Above Alaska Aviation, LLC | flight training | Alaska |
| Acadian Ambulance Air Medical Services | air medical | Louisiana |
| Acadian Aviation Pilot Training Centre | flight training | Louisiana |
| AC Air Technology | parts supply | California |
| Accelerated Aviation Instruction | flight training | Minnesota |
| Ace Aviation - Allegan | flight training | Michigan |
| A-Cent Aviation, Inc. | flight training | Colorado |
| Ace Pilot Training | flight training | Pennsylvania |
| ACES Aviation | flight training | Pennsylvania |
| ACES Systems | mro | Tennessee |
| AC Global Medical Transport | air medical | California |
| Achieve Aviation | flight training | Illinois |
| ACI Aviation Consulting | professional services | Florida |
| ACP Composites | parts supply | California |
| ACR Electronics | avionics systems | Florida |
| ACR Electronics (ARTEX brand) | avionics systems | Florida |
| ACS Aviation | private charter | New York |
| Action Air Express | private charter | California |
| Acute Air Ambulance | air medical | Florida |
| Adacel | avionics systems | Florida |
| Adams and Reese LLP | professional services | Louisiana |
| Adcom Worldwide | cargo logistics | Washington |
| ADP.ma LLC | parts supply | Tennessee |
| Advanced Air Ambulance | air medical | Florida |
| Advanced Aviation Group | flight training | Maryland |
| Advanced Aviation, Inc. | flight training | Georgia |
| Advanced Aviation Training | flight training | Illinois |
| Advanced Flight Training, Inc | flight training | Tennessee |
| Advanced Helicopter Concepts | flight training | Maryland |
| Advantage Aerospace LLC | aerospace manufacturing | Arizona |
| AEK Technology | parts supply | California |
| Aeria Luxury Interiors | aerospace manufacturing | Arizona |
| Aerion Supersonic | professional services | Nevada |
| Aeris Insurance Solutions | professional services | Kansas |
| Aerista | professional services | Oregon |
| Aeristo | aerospace manufacturing | Texas |
| Aero Air Charter | air medical | Oregon |
| Aero Atlanta Flight Center | flight training | Georgia |
| Aerobatic Company and Flight School, Inc | flight training | Nevada |
| AeroCare | air medical | Illinois |
| AeroData Inc. | professional services | Arizona |
| Aero-Electric Connector Inc | parts supply | California |
| AeroFlight Services | flight training | Georgia |
| AeroGuard Flight Training Center | flight training | Arizona |
| AeroInnovate Inc. | avionics systems | Wisconsin |
| Aero Instruments & Avionics, Inc. | avionics systems | New York |
| Aerolina at Hendersonville Airport | flight training | North Carolina |
| Aero Maintenance Flight Center | flight training | Washington |
| Aeromanagement Group | aircraft management | Maryland |
| Aero MD | air medical | — |
| AeroMech Inc. | avionics systems | Washington |
| Aero Medevac | air medical | California |
| Aero Minnesota | flight training | Minnesota |
| Aeronautical Systems Engineering Inc. | professional services | Florida |
| Aero Risks | professional services | Texas |
| Aero Seating Technologies | aerospace manufacturing | California |
| Aerosim Aviation | flight training | Arizona |
| AeroSimple | fbo ground handling | Florida |
| Aerospace Insurance Managers | professional services | Ohio |
| Aerospace Insurance Managers, Inc. | professional services | Ohio |
| Aerospace Technologies Group | aerospace manufacturing | Florida |
| AERO Specialties, Inc. | parts supply | Idaho |
| AeroStar Dynamics | drone services | Pennsylvania |
| AeroStar Training Services, LLC | flight training | Florida |
| AeroStellar | aircraft management | Oregon |
| Aerostrat Software | professional services | Washington |
| Aero Systems West | drone services | California |
| Aerotech Aviation | flight training | Utah |
| Aero-Tech, Inc. | flight training | Kentucky |
| Aero-Tech Services, Inc. | flight training | Pennsylvania |
| AeroTow by Amigo Mobility | parts supply | Michigan |
| AeroVector | professional services | Utah |
| AeroVironment | aerospace manufacturing | California |
| Aerowood Aviation | flight training | North Carolina |
| AFI Flight Training | flight training | California |
| AFM Aviation Finance | professional services | — |
| Africair, Inc. | private charter | Florida |
| AG3 Labs | drone services | New York |
| AgustaWestland (Leonardo Helicopters) | avionics systems | Pennsylvania |
| AIG Aerospace | professional services | New York |
| AIM Aerospace (now Sekisui Aerospace) | aerospace manufacturing | Washington |
| Air Adventures Macon | flight training | Georgia |
| Air Ambulance America | air medical | Florida |
| Air Ambulance Billing | professional services | Arizona |
| Air Ambulance by Air Trek inc | air medical | Florida |
| Air Ambulance Forum Inc. | air medical | Illinois |
| Air Ambulance International | air medical | Alabama |
| Air Ambulance Network | air medical | Florida |
| Air Ambulance Worldwide | air medical | Florida |
| Air America Flight Center | flight training | Florida |
| Air Appraisal | professional services | Minnesota |
| Air Associates of Kansas | flight training | Kansas |
| Air Associates of Missouri | flight training | Missouri |
| Airborne Flying Service Inc | air medical | Arkansas |
| Airborne Robotics | professional services | Pennsylvania |
| Air Business LLC | private charter | Kentucky |
| AirCARE1 Interntional | air medical | New Mexico |
| Aircare International | professional services | California |
| Aircastle Limited | professional services | Connecticut |
| Air Charter Advisors | private charter | Florida |
| Air Charter Guide | air medical | Kansas |
| Air Conformity | professional services | North Carolina |
| Aircraft BlueBook | professional services | Kansas |
| Aircraft Cabin Systems | aerospace manufacturing | Kansas |
| Aircraft Charter (USAC) | private charter | Texas |
| Aircraft Door Seals | parts supply | Wisconsin |
| Aircraft Finance Group | professional services | Illinois |
| Aircraft Guaranty Corp | professional services | Texas |
| Aircraft Management Group Inc | private charter | Pennsylvania |
| Aircraft Performance Group | professional services | Colorado |
| Aircraft Services Group | private charter | New Jersey |
| Aircraft Specialists, Inc. | air medical | Indiana |
| Aircraft Valuation Services | professional services | New York |
| Aircraft Value Analysis Co | professional services | Maryland |
| Air Critical Care | air medical | Florida |
| Air Culinaire Worldwide - Inflight Catering New Jersey (TEB) | fbo ground handling | New York |
| AirData | professional services | Colorado |
| Air Data Inc. | avionics systems | Virginia |
| Air EMS | air medical | Oklahoma |
| AirEvac International Air Ambulance | air medical | Arizona |
| Air Evac Lifeteam | air medical | Missouri |
| AirFinance Corporation | professional services | New York |
| AirFinance Leasing | professional services | New York |
| AirFleet Capital | professional services | Arizona |
| Airgo Inc. | flight training | Illinois |
| Air Law Office, P.A. | professional services | Florida |
| Air Lease Corp (now Sumisho Air Lease) | professional services | California |
| Airlift Northwest | air medical | Washington |
| Airline Choice | professional services | Florida |
| Airlink LLC | flight training | Maine |
| AirMap | professional services | California |
| Air MD | air medical | Florida |
| Air Medical Group Holdings | air medical | Missouri |
| Air Medical Transport | air medical | Texas |
| Air Methods Homebase | air medical | Colorado |
| AirModo | drone services | New York |
| Airmotive Enterprises | flight training | Minnesota |
| Air New England | private charter | New Hampshire |
| Air-O-Drome Aviation, Inc | flight training | Idaho |
| Airon Aerospace | professional services | California |
| Air One Ambulance | air medical | Texas |
| Airplane Rental Ventures | flight training | Arizona |
| Air Planning | air medical | New Hampshire |
| Airport Car and limo service | fbo ground handling | Florida |
| Airport Executive of Palm Beach- Limousine Service | fbo ground handling | Florida |
| Air Power Inc | parts supply | Texas |
| Air Reldan Inc. | flight training | Louisiana |
| Air Services Int'l., LLC | avionics systems | Arizona |
| AirSF | private charter | California |
| Airshare | private charter | Kansas |
| Air SOS | air medical | Delaware |
| AirSure Limited | professional services | Florida |
| Airtech Vacuum Inc. | parts supply | New Jersey |
| Air Trek North | flight training | Minnesota |
| Air Trinity Air Ambulance | air medical | Florida |
| Airtug | parts supply | Ohio |
| Air Venture Flight Center | flight training | Mississippi |
| Air Ventures PDK | flight training | Georgia |
| Airwolf Aviation | flight training | South Carolina |
| Airwork LLC | flight training | Washington |
| Airwork LLC - Las Vegas | flight training | Nevada |
| Alacura Medical Transportation Management | air medical | Texas |
| Alaka'i Technologies | professional services | Hawaii |
| Alan Aircraft Services | aircraft management | Indiana |
| Alas de San Miguel (Wings of Saint Michael) | flight training | New Mexico |
| Alaska Aircraft Sales | professional services | Alaska |
| Alaska Flight Simulator Academy | flight training | Alaska |
| Alaska Float Ratings | flight training | Alaska |
| Alaska Floats & Skis | flight training | Alaska |
| Alcoa Corporation | aerospace manufacturing | Pennsylvania |
| Alek Companies | aerospace manufacturing | Ohio |
| Alerion Aviation | private charter | Connecticut |
| Alexander & Associates, P.C. | professional services | Pennsylvania |
| Alexander Aviation Associates | professional services | Florida |
| All2fly Aviation Academy | flight training | Georgia |
| Allcity Luxury Limousine Services, inc. | fbo ground handling | — |
| Allen Medical International | air medical | Florida |
| Allmond Aviation, LLC | flight training | Illinois |
| All Stars Transportation | fbo ground handling | Texas |
| Alpha Air Center | flight training | Missouri |
| Alpha Aviation Mission Outreach Center, Inc. | flight training | Oklahoma |
| Alpha Jet Charter | private charter | Arizona |
| Alpha One Air Service | flight training | North Carolina |
| Alpha-One Flight Services | flight training | Massachusetts |
| Alpha Systems AOA | avionics systems | Minnesota |
| Alpine Air Express | private charter | Utah |