237130 Power and Communication Line and Related Structures Construction
238390 Other Building Finishing Contractors
518112 Web Search Portals
518210 Data Processing, Hosting, and Related Services
522320 Financial Transactions Processing, Reserve and Clearinghouse Activities
531311 Residential Property Managers
541211 Offices of Certified Public Accountants
541214 Payroll Services
541219 Other Accounting Services
541511 Custom Computer Programming Services
541513 Computer Facilities Management Services
541519 Other Computer Related Services  
541611 Administrative Management and General Management Consulting Services  
541612 Human Resources and Executive Search Consulting Services  
541618 Other Management Consulting Services  
551114 Corporate, Subsidiary and Regional Managing Offices  
561110 Office Administrative Services  
561320 Temporary Help Services  
561410 Document Preparation Services  
561439 Other Business Service Centers (including Copy Shops)  
561920 Convention and Trade Show Organizers  
611430 Professional and Management Development Training  
621111 Offices of Physicians (except Mental Health Specialists)  
621112 Offices of Physicians, Mental Health Specialists  
621330 Offices of Mental Health Practitioners (except Physicians)  
621340 Offices of Physical, Occupational and Speech Therapists, and Audiologists  
621399 Offices of All Other Miscellaneous Health Practitioners  
622110 General Medical and Surgical Hospitals  
813211 Grantmaking Foundations  
921190 Other General Government Support