Analysis
NAICS 33271 is the 2022 NAICS industry for machine shops, part of 3327 (Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing).
It has only one more detailed code, 332710, which covers exactly the same activities; the definition, index entries and statistics are on that page.
By establishments it ranks 1st of the 2 codes at this level within Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing, with 78.8% of them.
County Business Patterns counts 17,156 US establishments in this code in 2023, employing 223,313 people at an average annual payroll of $63,715 per employee (40th percentile of national industries). 46% of the establishments have fewer than five employees, which is close to the national mix.
Between 2018 and 2023 the number of establishments fell 6% and employment fell 5%. 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.
Official definition
See industry description for 332710.
Source: US Census Bureau, NAICS 2022 Manual.