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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

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