NAICS Code 541330 — Engineering Services
National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 54133 (Engineering Services).
| Code | 541330 |
|---|---|
| Title | Engineering Services |
| Level | National Industry (6-digit) |
| Edition | NAICS 2022 edition |
| SBA size standard | $25.5 million in average annual receipts |
Official definition (2022 NAICS)
This industry comprises establishments primarily engaged in applying physical laws and principles of engineering in the design, development, and utilization of machines, materials, instruments, structures, processes, and systems. The assignments undertaken by these establishments may involve any of the following activities: provision of advice, preparation of feasibility studies, preparation of preliminary and final plans and designs, provision of technical services during the construction or installation phase, inspection and evaluation of engineering projects, and related services.
Illustrative Examples:
Civil engineering services
Environmental engineering services
Construction engineering services
Mechanical engineering services
Engineers' offices
Robotics automation engineering services
Is a business under 541330 "small"?
Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 541330 qualifies as a small business if it does not exceed $25.5 million in average annual receipts. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — receipts are averaged over the latest 5 fiscal years.
Where 541330 sits in the hierarchy
| Level | Code | Title |
|---|---|---|
| Sector | 54 | Professional, Scientific, and Technical Services |
| Subsector | 541 | Professional, Scientific, and Technical Services |
| Industry Group | 5413 | Architectural, Engineering, and Related Services |
| NAICS Industry | 54133 | Engineering Services |
| National Industry | 541330 | Engineering Services |
Related SIC codes
Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.
| SIC code | Title |
|---|---|
8711 | Engineering Services |
8748 | Business Consulting Services, Not Elsewhere Classified |
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Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.