Fossil Fuel Electric Power Generation, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors, All Other Specialty Trade Contractors, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Water Purification, Water Treatment, Chlorine sanitation

Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Metal Tank (Heavy Gauge) Manufacturing

Water Supply and Irrigation Systems, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Farm and Garden Machinery and Equipment Merchant Wholesalers, Industrial Machinery and Equipment Merchant Wholesalers

Water Supply and Irrigation Systems, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Other Heavy and Civil Engineering Construction, Electrical Contractors

ED'S SUPPLY COMPANY, INC.

CARROLL ELECTRIC COOPERATIVE CORP

Steam and Air-Conditioning Supply

CWB ENGINEERS, INC.

WATER4LIFE

Water Supply and Irrigation Systems, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers

Water Supply and Irrigation Systems, New Single-Family Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers, Industrial Building Construction

Other Electric Power Generation

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Water Supply and Irrigation Systems, Residential Remodelers, Structural Steel and Precast Concrete Contractors, Framing Contractors, Masonry Contractors

Nursery and Tree Production, Timber Tract Operations, Soil Preparation, Planting, and Cultivating, Farm Management Services, Support Activities for Forestry

Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Housing Operative Builders, Industrial Building Construction

All Other Miscellaneous Crop Farming, Farm Labor Contractors and Crew Leaders, Farm Management Services, Support Activities for Forestry, Support Activities for Oil and Gas Operations

Water Supply and Irrigation Systems, Bottled Water Manufacturing, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipmen, Other Grocery and Related Products Merchant Wholesalers

Electric Bulk Power Transmission and Control, Electric Power Distribution

Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders