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USmax NAICS Codes

Code Description
236220 Commercial and Institutional Building Construction
238210 Electrical Contractors and other Wiring Installation Contractors
334290 Other Communications Equipment Manufacturing
517911 Telecommunications Resellers
541330 Engineering Services
541360 Geophysical Surveying and Mapping Services
541370 Surveying and Mapping (except Geophysical) 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
541614 Process, Physical Distribution, and Logistics Consulting Services
541618 Other Management Consulting Services
541690 Other Scientific and Technical Consulting Services
541990 All Other Professional, Scientific, and Technical Services
561110 Office Administrative Services
561210 Facilities Support Services
561621 Security Systems Services (Except Locksmiths)
611420 Computer Training
611699 All Other Miscellaneous Schools and Instruction
811212 Computer and Office Machine Repair and Maintenance
811213 Communication Equipment Repair and Maintenance

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