Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, All Other Specialty Trade Contractors

Air Traffic Control, Other Airport Operations, Other Support Activities for Air Transportation, Process, Physical Distribution, and Logistics Consulting Services, Research and Development in the Social Sciences and Humanities

Aircraft Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing, Other Support Activities for Air Transportation, Engineering Services, Drafting Services

Hydroelectric Power Generation, Fossil Fuel Electric Power Generation, Nuclear Electric Power Generation, Other Electric Power Generation, Electric Bulk Power Transmission and Control

Bus and Other Motor Vehicle Transit Systems, Other Urban Transit Systems, Interurban and Rural Bus Transportation, Taxi Service, Limousine Service

Other Support Activities for Air Transportation

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers, Industrial Building Construction

All Other Transit and Ground Passenger Transportation, Other Airport Operations, Other Support Activities for Air Transportation, Computer Facilities Management Services, Flight Training

Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, Computer and Software Stores

Small Arms Manufacturing, Other Nonscheduled Air Transportation, Other Support Activities for Air Transportation, Professional and Management Development Training, Other Technical and Trade Schools

All Other Miscellaneous Textile Product Mills, Motorcycle, Bicycle, and Parts Manufacturing, All Other Transportation Equipment Manufacturing, Industrial Supplies Merchant Wholesalers, Other Support Activities for Air Transportation

Scheduled Passenger Air Transportation, Scheduled Freight Air Transportation, Nonscheduled Chartered Passenger Air Transportation, Nonscheduled Chartered Freight Air Transportation, Other Nonscheduled Air Transportation

Other Support Activities for Air Transportation

Nonscheduled Chartered Passenger Air Transportation, Nonscheduled Chartered Freight Air Transportation, Other Nonscheduled Air Transportation, Other Airport Operations, Other Support Activities for Air Transportation

Nonscheduled Chartered Passenger Air Transportation, Other Support Activities for Air Transportation

Home Furnishing Merchant Wholesalers, Nonscheduled Chartered Passenger Air Transportation, Nonscheduled Chartered Freight Air Transportation, Other Nonscheduled Air Transportation, Other Airport Operations

pilot services

Air Traffic Control, Other Airport Operations, Other Support Activities for Air Transportation, Lessors of Residential Buildings and Dwellings, Lessors of Other Real Estate Property

Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Sheet Metal Work Manufacturing, Machine Shops

Aircraft propellers