Analysis
NAICS 3391 is the 2022 industry group for medical equipment and supplies manufacturing, part of 339 (Miscellaneous Manufacturing).
It has only one more detailed code, 33911, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 8,825 US establishments in this code in 2023, employing 308,388 people at an average annual payroll of $83,545 per employee (72nd percentile of national industries). 51% of the establishments have fewer than five employees, which is close to the national mix.
By establishments it ranks 2nd of the 2 codes at this level within Miscellaneous Manufacturing, with 37.4% of them.
Between 2018 and 2023 the number of establishments fell 11% and employment rose 9%. 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.