Computer Systems Design Services, Other Computer Related Services, Other Management Consulting Services, Other Scientific and Technical Consulting Services, Research and Development in the Physical, Engineering, and Life Sciences

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Industrial Machinery and Equipment Merchant Wholesalers

All Other Specialty Trade Contractors

Prefabricated Metal Building and Component Manufacturing, Other Metal Container Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Semiconductor and Related Device Manufacturing

Engineering Services, Custom Computer Programming Services, Computer Systems Design Services

Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

Offices of Physicians (except Mental Health Specialists)

Controls

Engineering Services, Process, Physical Distribution, and Logistics Consulting Services, Other Management Consulting Services

Dental Laboratories

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Lessors of Nonresidential Buildings (except Miniwarehouses)

Other Scientific and Technical Consulting Services

Drycleaning and Laundry Services (except Coin-Operated)

Engineering Services

Crude Petroleum and Natural Gas Extraction, Petroleum Refineries

In-Vitro Diagnostic Substance Manufacturing

Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Computer Terminal Manufacturing, Other Computer Peripheral Equipment Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

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

Industrial Valve Manufacturing, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Totalizing Fluid Meter and Counting Device Manufacturing, Other Measuring and Controlling Device Manufacturing

Professional and Management Development Training