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, Water Supply and Irrigation Systems

AMCON LLC

Highway, Street, and Bridge Construction, Site Preparation Contractors, All Other Specialty Trade Contractors

Other Heavy and Civil Engineering Construction, Landscape Architectural Services, Engineering Services, Geophysical Surveying and Mapping Services, Surveying and Mapping (except Geophysical) Services

Construction Sand and Gravel Mining, Water and Sewer Line and Related Structures Construction, Other Commercial and Industrial Machinery and Equipment Rental and Leasing, Solid Waste Landfill

Construction Sand and Gravel Mining, Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Prefabricated Metal Building and Component Manufacturing

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

Hydroelectric Power Generation, Fossil Fuel Electric Power Generation, Electric Bulk Power Transmission and Control, Electric Power Distribution, Power and Communication Line and Related Structures Construction

Industrial Building Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Structural Steel and Precast Concrete Contractors, Site Preparation Contractors

Industrial Building Construction, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors, Siding Contractors

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction

Power and Communication Line and Related Structures Construction

Water and Sewer Line and Related Structures Construction

Water and Sewer Line and Related Structures Construction