Masonry Contractors

General Line Grocery Merchant Wholesalers, Packaged Frozen Food Merchant Wholesalers, Dairy Product (except Dried or Canned) Merchant Wholesalers, Poultry and Poultry Product Merchant Wholesalers, Fish and Seafood Merchant Wholesalers

Lessors of Residential Buildings and Dwellings

Public Relations Agencies

All Other Specialty Trade Contractors

Nonscheduled Chartered Passenger Air Transportation, Nonscheduled Chartered Freight Air Transportation

Janitorial Services

Lessors of Nonresidential Buildings (except Miniwarehouses)

Other Heavy and Civil Engineering Construction

Other Scientific and Technical Consulting Services

Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers

Site Preparation Contractors, Specialized Freight (except Used Goods) Trucking, Long-Distance, Solid Waste Collection

Packaged Frozen Food Merchant Wholesalers

Electrical Contractors, Engineering Services, Testing Laboratories, Other Management Consulting Services, Security Systems Services (except Locksmiths)

Electrical Contractors

All Other Miscellaneous Manufacturing

All Other Miscellaneous Store Retailers (except Tobacco Stores)

Offices of Dentists

Farm Machinery and Equipment Manufacturing

All Other Miscellaneous Schools and Instruction

Court Reporting and Stenotype Services

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

All Other Miscellaneous Schools and Instruction

Kidney Dialysis Centers

All Other Specialty Trade Contractors