Analysis
NAICS 54149 is the 2022 NAICS industry for other specialized design services, part of 5414 (Specialized Design Services).
It has only one more detailed code, 541490, which covers exactly the same activities; the definition, index entries and statistics are on that page.
Between 2018 and 2023 the number of establishments grew 32% and employment rose 22%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.
County Business Patterns counts 3,469 US establishments in this code in 2023, employing 11,380 people at an average annual payroll of $73,308 per employee (58th percentile of national industries). 87% of the establishments have fewer than five employees, which marks it as a small-business industry.
By establishments it ranks 3rd of the 4 codes at this level within Specialized Design Services, with 9.2% of them.
Official definition
See industry description for 541490.
Source: US Census Bureau, NAICS 2022 Manual.