Computer Systems Design Services, Other Computer Related Services, Other Management Consulting Services, Other Scientific and Technical Consulting Services, All Other Professional, Scientific, and Technical Services

Human Resources and Executive Search Consulting Services, All Other Support Services, Administration of Human Resource Programs (except Education, Public Health, and Veterans' Affairs Pr

Electrical Contractors, All Other Specialty Trade Contractors, Other Miscellaneous Durable Goods Merchant Wholesalers, Security Systems Services (except Locksmiths), Fire Protection

CORPORATE OPERATIONS

Administrative Management and General Management Consulting Services, Office Administrative Services, Administration of General Economic Programs, Regulation and Administration of Transportation Program

Direct Health and Medical Insurance Carriers, Health and Welfare Funds, Computer Training, Educational Support Services, Child and Youth Services

Power and Communication Line and Related Structures Construction, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Other Electronic Parts and Equipment Merchant Wholesalers, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers

Computer and Computer Peripheral Equipment and Software Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Other Electronic Parts and Equipment Merchant Wholesalers, Hardware Merchant Wholesalers, Business to Business Electronic Markets

Professional and Management Development Training, All Other Miscellaneous Schools and Instruction, National Security

Educational Support Services, Administration of Education Programs

Other Building Finishing Contractors, All Other Specialty Trade Contractors, Marine Cargo Handling, Other Support Activities for Road Transportation, Locksmiths

Administrative Management and General Management Consulting Services, Business Associations, Administration of Education Programs

Administration of Conservation Programs

Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Electrical Contractors, Engineering Services, Building Inspection Services

Architectural Services, Landscape Architectural Services, Interior Design Services, Administration of Urban Planning and Community and Rural Development

Inland Water Passenger Transportation, Special Needs Transportation, Scenic and Sightseeing Transportation, Land, Scenic and Sightseeing Transportation, Water, Other Support Activities for Water Transportation

Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Other Management Consulting Services, Office Administrative Services, Educational Support Services

All Other Miscellaneous Store Retailers (except Tobacco Stores), Other Scientific and Technical Consulting Services, Veterinary Services, Professional and Management Development Training, Other Technical and Trade Schools

Administration of Education Programs

Machine Shops, Aircraft Manufacturing, Aircraft Engine and Engine Parts Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing, Guided Missile and Space Vehicle Manufacturing