Engineering & Scientific Research & Development Services: Estimated Sources of Revenue, U.S.: 2017-2021 |
||||||
(In Millions of US$; Latest Year Available) |
||||||
NAICS |
Kind of business |
2021 |
2020 |
2019 |
2018 |
2017 |
Revenue for Taxable Firms |
||||||
54133 |
Engineering services |
274,912 |
259,888 |
264,653 |
249,085 |
237,304 |
54138 |
Testing laboratories |
24,790 |
24,010 |
23,115 |
21,426 |
20,551 |
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