Analysis
NAICS 3365 is the 2022 industry group for railroad rolling stock manufacturing, part of 336 (Transportation Equipment Manufacturing).
It has only one more detailed code, 336510, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 220 US establishments in this code in 2023, employing 27,831 people at an average annual payroll of $88,238 per employee (76th percentile of national industries). 12% of the establishments have fewer than five employees, which points to larger operations.
By establishments it ranks 7th of the 7 codes at this level within Transportation Equipment Manufacturing, with 1.9% of them.
Between 2018 and 2023 the number of establishments fell 10% and employment rose 1%. 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.