NAICS Codes · NAICS 541990
NAICS 541990
All Other Professional, Scientific, and Technical Services
Professional-service scope
Describe the precise professional or technical activity and the qualifications required to perform it. Check whether a more specific classification applies before using this broader category.
Classification reference
The U.S. Census Bureau 2022 NAICS reference for 541990 (opens in a new tab) provides the industry definition and cross-references. Use the solicitation’s stated classification and requirements when evaluating an opportunity.