541511: Custom Computer Programming
541512: Computer Systems Design Services
541513: Computer Facilities Management Services
541611: Administrative Management and General Management Consulting Services
541612: Human Resource Consulting Services
541614: Process, Physical Distribution, and Logistics Consulting Services
541618: Other Management Consulting Services
541720: Research and Development in the Social Sciences and Humanities
561110: Office Administrative Services
561210: Facilities Support Services
561310: Employment Placement Agencies
561311: Employment Agencies/Employment Placement Agencies
561312: Executive Placement Services/Executive Search Services
561320: Temporary Help Services/Temporary Employment Services
561330: Professional Employer Organizations
561410: Document Preparation Services
561990: All Other Support Services
611430: Professional Development Training
611710: Educational Support Services