Analysis
NAICS 48832 is the 2022 NAICS industry for marine cargo handling, part of 4883 (Support Activities for Water Transportation).
It has only one more detailed code, 488320, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 485 US establishments in this code in 2023, employing 66,890 people at an average annual payroll of $90,025 per employee (77th percentile of national industries). 31% of the establishments have fewer than five employees, which is close to the national mix.
Between 2018 and 2023 the number of establishments grew 5% and employment rose 7%. 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.
By establishments it ranks 3rd of the 4 codes at this level within Support Activities for Water Transportation, with 18.4% of them.
Official definition
See industry description for 488320.
Source: US Census Bureau, NAICS 2022 Manual.