PFS is actively engaged in the following work areas under the North American Industry Classification System:

511199  |  All Other Publishers

512110  |  Motion Picture and Video Production

518210 |  Data Processing, Hosting and Related Services

519130 |  Internet Publishing and Broadcasting and Web Search Portals

519190  |  All Other Information Services

524298  |  All Other Insurance Related Activities

541211  |  Offices of Certified Public Accountants

541219  |  Other Accounting Services

541330  |  Engineering Services

541430  |  Graphic Design 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

541810  |  Advertising Agencies

541830  |  Media Buying Agencies

541890  |  Other Services Related to Advertising

541990  |  All Other Professional, Scientific, and Technical Services

561499  |  All Other Business Support Services

561920  |  Convention and Trade Show Organizers

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