2022 NAICS subsector in sector 54 Professional, Scientific, and Technical Services
541 Professional, Scientific, and Technical Services
NAICS 541 is the US industry code for professional, scientific, and technical services. Industries in the Professional, Scientific, and Technical Services subsector group establishments engaged in processes where human capital is the major input.
Official definition
Industries in the Professional, Scientific, and Technical Services subsector group establishments engaged in processes where human capital is the major input. These establishments make available the knowledge and skills of their employees, often on an assignment basis, where an individual or team is responsible for the delivery of services to the client. The individual industries of this subsector are defined on the basis of the particular expertise and training of the services provider.
The distinguishing feature of the Professional, Scientific, and Technical Services subsector is the fact that most of the industries grouped in it have production processes that are almost wholly dependent on worker skills. Thus, the establishments classified in this subsector sell expertise. Much of the expertise requires degrees, though not in every case.
Codes in 541
- 5411Legal Services4 codes
- 5412Accounting, Tax Preparation, Bookkeeping, and Payroll Services4 codes
- 5413Architectural, Engineering, and Related Services8 codes
- 5414Specialized Design Services4 codes
- 5415Computer Systems Design and Related Services4 codes
- 5416Management, Scientific, and Technical Consulting Services7 codes
- 5417Scientific Research and Development Services4 codes
- 5418Advertising, Public Relations, and Related Services8 codes
- 5419Other Professional, Scientific, and Technical Services6 codes
Data last changed November 14, 2026. How this page is built.