541219 – Other Accounting Services 

541511 – Custom Computer Programming Services 

541512 – Computer Systems Design Services 

541513 – Computer Facilities Management Services 

541519 – Other Computer Related Services 

541611 – Administrative Management and General Management Consulting Services 

541612 – Human Resources Consulting Services 

541614 – Process, Physical Distribution, and Logistics Consulting Services 

541618 – Other Management Consulting Services 

541690 – Other Scientific and Technical Consulting Services