Support Activities for Forestry, Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Site Preparation Contractors

Support Activities for Coal Mining, New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Industrial Building Construction, Commercial and Institutional Building Construction

Oil Operations, Multifamily Housing, Industrial Building, Commercial Building, Water and Sewer Line, Highway Construction, Structural Steel, Site Preparation, Trucking, Accounting Services, Building Inspection, Admin Management, Process Consulting, Enviro

Finfish Farming and Fish Hatcheries, Lead Ore and Zinc Ore Mining, Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying

Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction

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

equipment rental, highway, sand, sandbagging, dike work, trucking, hauling, gravel, excavation, sitework, riprap, topsoil

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

NORTHSTAR MATERIALS, INC. DBA KNIFE RIVER MATERIALS

Highway, Street, and Bridge Construction, Site Preparation Contractors, General Freight Trucking, Local, Specialized Freight (except Used Goods) Trucking, Local

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

Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, All Other Specialty Trade Contractors

GT SEEDING, LLC

Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Site Preparation Contractors, All Other Specialty Trade Contractors

HAMMERLUND CONSTRUCTION INC

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

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

Crushed and Broken Limestone Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining, Industrial Sand Mining, Water Supply and Irrigation Systems

Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Highway, Street, and Bridge Construction