Analysis
NAICS 48833 is the 2022 NAICS industry for navigational services to shipping, part of 4883 (Support Activities for Water Transportation).
It has only one more detailed code, 488330, which covers exactly the same activities; the definition, index entries and statistics are on that page.
County Business Patterns counts 1,065 US establishments in this code in 2023, employing 12,850 people at an average annual payroll of $98,763 per employee (83rd percentile of national industries). 63% of the establishments have fewer than five employees, which marks it as a small-business industry.
By establishments it ranks 1st of the 4 codes at this level within Support Activities for Water Transportation, with 40.4% of them.
Between 2018 and 2023 the number of establishments grew 4% and employment fell 15%. 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 488330.
Source: US Census Bureau, NAICS 2022 Manual.