Research and Development in the Physical, Engineering, and Life Sciences

Automotive Body, Paint, and Interior Repair and Maintenance

Other Support Activities for Air Transportation

Electrical Contractors

Offices of Physicians (except Mental Health Specialists)

Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors

Prefabricated Metal Building and Component Manufacturing, Metal Service Centers and Other Metal Merchant Wholesalers

Nursery, Garden Center, and Farm Supply Stores

New Car Dealers

Commercial and Institutional Building Construction

Quick Printing, General Warehousing and Storage

Motorcycle Dealers

Hotels (except Casino Hotels) and Motels

Office Machinery and Equipment Rental and Leasing

Other Chemical and Allied Products Merchant Wholesalers

Lessors of Residential Buildings and Dwellings

Residential Remodelers, Plumbing, Heating, and Air-Conditioning Contractors

Lessors of Residential Buildings and Dwellings

Business Associations

Research and Development in the Physical, Engineering, and Life Sciences

Small Arms Manufacturing

Plumbing, Heating, and Air-Conditioning Contractors

Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers