Plumbing, Heating, and Air-Conditioning Contractors, Heating Equipment (except Warm Air Furnaces) Manufacturing, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipmen, Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use, Refrigeration Equipment and Supplies Merchant Wholesalers

Bus and Other Motor Vehicle Transit Systems, Interurban and Rural Bus Transportation

Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction, Land Subdivision, Highway, Street, and Bridge Construction

All Other Transit and Ground Passenger Transportation

Charter Bus Industry

Limousine Service, Charter Bus Industry

Limousine Service

All Other Transit and Ground Passenger Transportation, All Other Information Services