13 NAICS industries for “engineering”

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NAICS (North American Industry Classification System) classifies businesses by their primary activity. It is used for government statistics, contracting, marketing, and business research. Learn about NAICS →

  1. 541330 Engineering Services

    Applying physical laws and principles of engineering in the design, development, and utilization of machines, materials, instruments, structures, processes, and systems.

    38,516 U.S. business records

  2. 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)

    Conducting research and experimental development (except nanotechnology and biotechnology research and experimental development) in the physical, engineering, and life sciences, such as agriculture, electronics, environmental, biology, botany, computers, chemistry, food, fisheries, forests, geology, health, mathematics, medicine, oceanography, pharmacy, physics, veterinary, and other allied subjects.

    1,918 U.S. business records

  3. 237990 Other Heavy and Civil Engineering Construction

    Heavy and civil engineering construction projects.

    Excludes: highway, street, bridge, and distribution line construction.

    4,990 U.S. business records

  4. 238320 Painting and Wall Covering Contractors

    Interior or exterior painting or interior wall covering.

    engineering structure (e.g., oil storage tank, water tower) painting

    30,209 U.S. business records

  5. 541714 Research and Development in Biotechnology (except Nanobiotechnology)

    Conducting biotechnology (except nanobiotechnology) research and experimental development.

    protein engineering research and experimental development laboratories

    16,888 U.S. business records

  6. 541512 Computer Systems Design Services

    Planning and designing computer systems that integrate computer hardware, software, and communication technologies.

    cae (computer-aided engineering) systems integration design services, computer-aided engineering (cae) systems…

    17,705 U.S. business records

  7. 924110 Administration of Air and Water Resource and Solid Waste Management Programs

    This industry comprises government establishments primarily engaged in one or more of the following: (1) the administration, regulation, and enforcement of air and water resource programs; (2) the administration and regulation of solid waste management programs; (3) the administration and regulation of water and air pollution control and prevention programs; (4) the administration and regulation of flood control programs; (5) the administration and regulation of drainage development and water resource consumption programs; (6) the administration and regulation of toxic waste removal and cleanup programs; and (7) coordination of these activities at intergovernmental levels.

    sanitation engineering agencies, government

    On Request

  8. 238910 Site Preparation Contractors

    Site preparation activities, such as excavating and grading, demolition of buildings and other structures, and septic system installation.

    dismantling engineering structures (e.g., oil storage tank), removal of dams, dikes, and other heavy and civil…

    30,629 U.S. business records

  9. 541340 Drafting Services

    Drawing detailed layouts, plans, and illustrations of buildings, structures, systems, or components from engineering and architectural specifications.

    989 U.S. business records

  10. 541360 Geophysical Surveying and Mapping Services

    Gathering, interpreting, and mapping geophysical data.

    50 U.S. business records

  11. 541490 Other Specialized Design Services

    Providing professional design services.

    Excludes: architectural, landscape architecture, engineering, interior, industrial, graphic, and computer systems design.

    4,549 U.S. business records

  12. 541990 All Other Professional, Scientific, and Technical Services

    The provision of professional, scientific, or technical services.

    Excludes: legal services; accounting, tax preparation, bookkeeping, and related services; architectural, engineering, and related services; specialized design services; computer systems design and related services; management, scientific, and technical consulting services; scientific research and development services; advertising, public relations, and related services; market research and public opinion polling; photographic services; translation and interpretation services; and veterinary services.

    52,613 U.S. business records

  13. 336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing

    This industry comprises establishments primarily engaged in (1) manufacturing and/or rebuilding motor vehicle gasoline engines and engine parts and/or (2) manufacturing and/or rebuilding carburetors, pistons, piston rings, and engine valves, whether or not for vehicular use.

    25 U.S. business records

More specific industry matches

Eight-digit Extended NAICS classifications provide more detailed industry segments within the six-digit NAICS framework, helping you narrow your business targeting.

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Sources & methodology

NAICS definitions: U.S. Census Bureau, 2022

SIC definitions: OSHA SIC Manual

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