NAICS 541990 is the North American Industry Classification System code for All Other Professional, Scientific, and Technical Services, a national industry in the Other Professional, Scientific, and Technical Services industry group (5419) of the Professional, Scientific, and Technical Services sector (54).
NAICS 541990 is the code for All Other Professional, Scientific, and Technical Services, a national industry in the North American Industry Classification System (NAICS 2022), under 5419 (Other Professional, Scientific, and Technical Services). It is a 6-digit code, the most specific NAICS level.
The parent of NAICS 541990 is 5419, Other Professional, Scientific, and Technical Services. Every company under 541990 is also counted under 5419.