Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Research and Development in the Social Sciences and Humanities, Office Administrative Services, Professional and Management Development Training

Precision Turned Product Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing, Engineering Services, Drafting Services

Educational Support Services, Child and Youth Services, Administration of Education Programs

Other Management Consulting Services, Other Scientific and Technical Consulting Services, Emergency and Other Relief Services, National Security

Water Supply and Irrigation Systems, Plumbing, Heating, and Air-Conditioning Contractors, Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers, Landscape Architectural Services, Zoos and Botanical Gardens

Educational Support Services, Administration of Education Programs

Data Processing, Hosting, and Related Services, All Other Information Services, Legal Counsel and Prosecution

Residential Remodelers, Other Building Equipment Contractors, Engineering Services, Building Inspection Services, Other Management Consulting Services

Professional and Management Development Training, Educational Support Services, Other Individual and Family Services, Administration of Education Programs, Administration of Public Health Programs

Administrative Management and General Management Consulting Services, Other Management Consulting Services, Space Research and Technology, National Security

Office Administrative Services, Administration of Education Programs

Mail-Order Houses, Radio Stations, Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Marketing Consulting Services

Administration of Public Health Programs

National Security

Environmental Consulting Services, Environment, Conservation and Wildlife Organizations, Administration of Conservation Programs

Other General Government Support

Hobby, Toy, and Game Stores, Air Traffic Control, Other Support Activities for Air Transportation, Support Activities for Rail Transportation, General Rental Centers

Electronic Computer Manufacturing, All Other Information Services, Custom Computer Programming Services, Computer Systems Design Services, Computer Facilities Management Services

Administrative Management and General Management Consulting Services, Correctional Institutions

Engineering Services, Administrative Management and General Management Consulting Services, Other Management Consulting Services, Other Scientific and Technical Consulting Services, Professional and Management Development Training

Research and Development in the Social Sciences and Humanities, Other Individual and Family Services, Parole Offices and Probation Offices

Human Resources and Executive Search Consulting Services, All Other Professional, Scientific, and Technical Services, Regulation, Licensing, and Inspection of Miscellaneous Commercial Sectors

Professional and Management Development Training, Other Technical and Trade Schools, All Other Miscellaneous Schools and Instruction, Other Residential Care Facilities, Vocational Rehabilitation Services

Court Reporting and Stenotype Services, Other General Government Support