USmax NAICS Codes

Code

Description

236220

Commercial and Institutional Building Construction

238210

Electrical Contractors and other Wiring Installation Contractors

517911

Telecommunications Resellers

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 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