Standard Industrial Code Divisions

Major Group: 45—Transportation By Air

This major group includes establishments engaged in furnishing domestic and foreign transportation by air and also those operating airports and flying fields and furnishing terminal services. Establishments primarily engaged in performing services which may incidentally use airplanes (e.g., crop dusting and aerial photography) are classified according to the service performed.

Codes Titles Total Marketable US Businesses
Industry Group 451: Air Transportation, Scheduled, And Air Courier Services
4512Air Transportation, Scheduled2,408
4513Air Courier Services1,731
Industry Group 452: Air Transportation, Nonscheduled
4522Air Transportation, Nonscheduled2,231
Industry Group 458: Airports, Flying Fields, And Airport Terminal Services
4581Airports, Flying Fields, and Airport Terminal Services17,918