Plumbing, Heating, and Air-Conditioning Contractors

Welding, Fabrication, Aluminum, Stainless Steel

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

electrical, sprinklers

Power and Communication Line and Related Structures Construction, All Other Specialty Trade Contractors, Wood Preservation, Motor Vehicle Supplies and New Parts Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Plumbing, Heating, and Air-Conditioning Contractors

Electrical Contractors, Petroleum Bulk Stations and Terminals, Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals), Graphic Design Services, Document Preparation Services

Electrical Contractors, Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Telephone Apparatus Manufacturing, Printed Circuit Assembly (Electronic Assembly) Manufacturing

Other Building Finishing Contractors

All Other Specialty Trade Contractors, Exterminating and Pest Control Services, Janitorial Services, Landscaping Services, Other Services to Buildings and Dwellings

painting, drywall, floor covering

excavation, grading of land, gravel

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

Construction, Contractor

Electrical Contractors, Satellite Telecommunications, Engineering Services, Computer Systems Design Services, Computer Facilities Management Services

Electrical Contractors, Other Building Equipment Contractors, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers, Computer and Software Stores, All Other Miscellaneous Store Retailers (except Tobacco Stores)

Home Remodelers, water lines, and sewer lines

CARPET AND TILE

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

Electrical Contractors, Other Computer Peripheral Equipment Manufacturing, Other Electronic Component Manufacturing, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers, Computer and Software Stores