PFS is actively engaged in the following work areas under the North American Industry Classification System:
511199 | All Other Publishers
518210 | Data Processing, Hosting and Related Services
519130 | Internet Publishing and Broadcasting and Web Search Portals
519190 | All Other Information Services
541330 | Engineering Services
541511 | Custom Computer Programming Services
541512 | Computer Systems Design Services
541513 | Computer Facilities management services
541519 | Other Computer Related Services
541611 | Administrative Management Consulting Services
541612 | Human Resources Consulting Services
541613 | Marketing Consulting Services
541614 | Process and Logistics Consulting services
541618 | Other Management Consulting Services
541690 | Other Technical Consulting Services
541715 | Research and Development in the Physical, Engineering, and Life Sciences
(except Nanotechnology and Biotechnology)
541720 | Research and Development in the Social Sciences and Humanities
541990 | All Other Professional, Scientific, and Technical Services
561499 | All Other Business Support Services
561990 | All Other Support Services
611430 | Professional and Management Development Training
611699 | All Other Miscellaneous Schools and Instruction
611710 | Educational Support Services
624120 | Services for the Elderly and Persons with Disabilities
624190 | Other Individual and Family Services
624229 | Other Community Housing Services
624310 | Vocational Rehabilitation Services
