Water Supply and Irrigation Systems, Sewage Treatment Facilities, Oil and Gas Pipeline and Related Structures Construction, Land Subdivision, Other Heavy and Civil Engineering Construction

Offices of Dentists

Industrial Building Construction, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors

Television Broadcasting

Food Service Contractors

Other Building Equipment Contractors, Gum and Wood Chemical Manufacturing, Industrial Process Furnace and Oven Manufacturing

Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers, Office Equipment Merchant Wholesalers, Hardware Merchant Wholesalers, Other Building Material Dealers

Janitorial Services

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

Other Foundation, Structure, and Building Exterior Contractors, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Plate Work Manufacturing, Machine Tool (Metal Cutting Types) Manufacturing, Welding and Soldering Equipment Manufacturing

Painting and Wall Covering Contractors

Lessors of Nonresidential Buildings (except Miniwarehouses)

Offices of Dentists

Lessors of Nonresidential Buildings (except Miniwarehouses)

All Other Miscellaneous Store Retailers (except Tobacco Stores)

Floor Covering Stores

All Other Miscellaneous Wood Product Manufacturing

Glass and Glazing Contractors

Heating Oil Dealers

Lessors of Nonresidential Buildings (except Miniwarehouses)

Offices of Physicians (except Mental Health Specialists)

Site Preparation Contractors, Architectural Services, Engineering Services, Surveying and Mapping (except Geophysical) Services

Window Treatment Stores

All Other Miscellaneous Store Retailers (except Tobacco Stores)

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers