NAICS Code for Engineering
The primary NAICS code for Engineering is 541330 — Engineering Services. Businesses classified under NAICS 541330 (Engineering Services) are involved 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. Typical activities include: Applying physical laws and principles of engineering in the design, Development, Utilization of machines, Materials, Instruments. Related codes include 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)), 23799 (Other Heavy and Civil Engineering Construction), 54171 (Research and Development in the Physical, Engineering, and Life Sciences).
Primary NAICS Code
541330Engineering ServicesAlso commonly classified as:
54133Engineering Services237990Other Heavy and Civil Engineering ConstructionAbout Engineering
Businesses classified under NAICS 541330 (Engineering Services) are involved 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.
Typical Business Activities
What's Included
- +Applying physical laws and principles of engineering in the design
- +Development
- +Utilization of machines
- +Materials
- +Instruments
- +Structures
- +Processes
- +Systems
How to Determine Your NAICS Code
While 541330 (Engineering Services) is the most common classification for engineering, your specific code depends on your primary revenue-generating activity. Review the included and excluded activities above to confirm this code fits your business. If your operations span multiple categories, use the code that best represents your largest source of revenue. You can also use the search tool below to describe your specific business activities and find the most accurate match.
Related NAICS Codes
Businesses in engineering may also fall under these codes:
Example Companies
Fluor Enterprises
Fluor, a leading engineering & construction company, provides engineering, procurement, construction (EPC), maintenance & project management services worldwide.
Irving, Texas, United States
Jacobs
Aqua DNA technology mines your existing sensors and analytics, providing a one-screen view of your wastewater network. We identify threats that lead to incidents before they happen — and alert your team to take action where it matters most.
Dallas, Texas, United States
Parsons
Parsons Corporation is an American multinational company that operates in the fields of national security, infrastructure engineering, and technology solutions..
Chantilly, Virginia, United States
Tetra Tech
Tetra Tech, Inc.
Pasadena, California, United States
Amentum
Amentum Services, Inc.
Chantilly, Virginia, United States
Describe Your Business
Need a more specific NAICS code? Search by your business activity or company name: