NAICS CODES (Detailed)


523920 – Portfolio Management

This industry comprises establishments primarily engaged in managing the portfolio assets (i.e., funds) of others on a fee or commission basis. Establishments in this industry have the authority to make investment decisions, and they derive fees based on the size and/or overall performance of the portfolio.

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541219 – Other Accounting Services

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541330 – Engineering Services:

Military & Aerospace Equipment, as well as Military Weapons
Contracts and Subcontracts for Engineering Services Awarded under the National Energy Policy Act (NEPA) of 1992
Marine Engineering and Naval Architecture

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.

  • Planning and designing computer systems that integrate computer hardware, software, and communication technologies
  • Performing surveying and mapping services of the surface of the earth, including the sea floor
  • Gathering, interpreting, and mapping geophysical data
  • Creating and developing designs and specifications that optimize the use, value, and appearance of products
  • Providing advice and assistance to others on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials
  • Both the design and construction of buildings, highways, and other structures or in managing construction projects

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541511 – Custom Computer Programming Services

This U.S. industry comprises establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer.

  • Publishing packaged software
  • Planning and designing computer systems that integrate computer hardware, software, and communication technologies, even though such establishments may provide custom software as an integral part of their services.

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541512 – Custom Computer Design Services

This industry comprises establishments primarily engaged in providing professional design services (except architectural, landscape architecture, engineering, interior, industrial, graphic, and computer system design).

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541513 – Computer Facilities Management Services

This U.S. industry comprises establishments primarily engaged in providing on-site management and operation of clients’ computer systems and/or data processing facilities. Establishments providing computer systems or data processing facilities support services are included in this industry.

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541519 – Other Computer Related Services:

Information Technology Value Added Resellers

This U.S. industry comprises establishments primarily engaged in providing computer related services (except custom programming, systems integration design, and facilities management services). Establishments providing computer disaster recovery services or software installation services are included in this industry.

  • Providing custom computer programming services
  • Providing computer systems integration design
  • Providing computer systems and/or data processing facilities management services

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541611 – Administrative Management and General Management Consulting Services

This U.S. industry comprises establishments primarily engaged in providing operating advice and assistance to businesses and other organizations on administrative management issues, such as financial planning and budgeting, equity and asset management, records management, office planning, strategic and organizational planning, site selection, new business startup, and business process improvement. This industry also includes establishments of general management consultants that provide a full range of administrative; human resource; marketing; process, physical distribution, and logistics; or other management consulting services to clients.

  • Establishments primarily engaged in providing a range of day-to-day office administrative services, such as financial planning, billing and recordkeeping, personnel, and physical distribution and logistics
  • Establishments primarily engaged in administering, overseeing, and managing other establishments of the company or enterprise (except government establishments)
  • Government establishments primarily engaged in administering, overseeing, and managing governmental programs
  • Establishments primarily engaged in providing investment advice

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541614 – Process, Physical Distribution, and Logistics Consulting Services

This U.S. industry comprises establishments primarily engaged in providing operating advice and assistance to businesses and other organizations in areas, such as: (1) manufacturing operations improvement; (2) productivity improvement; (3) production planning and control; (4) quality assurance and quality control; (5) inventory management; (6) distribution networks; (7) warehouse use, operations, and utilization; (8) transportation and shipment of goods and materials; and (9) materials management and handling.

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541618 – Other Management Consulting Services

This U.S. industry comprises establishments primarily engaged in providing management consulting services (except administrative and general management consulting; human resources consulting; marketing consulting; or process, physical distribution, and logistics consulting). Establishments providing telecommunications or utilities management consulting services are included in this industry.

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541690 – Other Scientific and Technical Consulting Services

This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on scientific and technical issues (except environmental).

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

Aircraft, Aircraft Engine and Engine Parts
Other Aircraft Parts and Auxiliary Equipment
Guided Missiles and Space Vehicles, Their Propulsion and their Propulsion Parts

This industry comprises establishments primarily engaged in conducting research and experimental development in the physical, engineering, and life sciences, such as agriculture, electronics, environmental, biology, botany, biotechnology, computers, chemistry, food, fisheries, forests, geology, health, mathematics, medicine, oceanography, pharmacy, physics, veterinary, and other allied subjects.

  • Providing physical, chemical, or other analytical testing services (except medical or veterinary)
  • Providing medical laboratory testing for humans
  • Providing veterinary testing services

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541720 – Research and Development in the Social Sciences and Humanities

This industry comprises establishments primarily engaged in conducting research and analyses in cognitive development, sociology, psychology, language, behavior, economic, and other social science and humanities research.

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541990 – All Other Professional, Scientific, and Technical Services

This industry comprises establishments primarily engaged in the provision of professional, scientific, or technical services (except 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).

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561410 – Document Preparation Services

This industry comprises establishments primarily engaged in one or more of the following: (1) letter or resume writing; (2) document editing or proofreading; (3) typing, word processing, or desktop publishing; and (4) stenography (except court reporting or stenotype recording), transcription, and other secretarial services.

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561499 – All other Business Support Services

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611420 – Computer Training

This industry comprises establishments primarily engaged in conducting computer training (except computer repair), such as computer programming, software packages, computerized business systems, computer electronics technology, computer operations, and local area network management. Instruction may be provided in diverse settings, such as the establishment’s or client’s training facilities, educational institutions, the workplace, or the home, and through diverse means, such as correspondence, television, the Internet, or other electronic and distance-learning methods. The training provided by these establishments may include the use of simulators and simulation methods.

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611430 – Professional and Management Development Training

This industry comprises establishments primarily engaged in offering an array of short duration courses and seminars for management and professional development. Training for career development may be provided directly to individuals or through employers’ training programs; and courses may be customized or modified to meet the special needs of the customers. Instruction may be provided in diverse settings, such as the establishments or client’s training facilities, educational institutions, the workplace, or the home, and through diverse means, such as correspondence, television, or the internet, or other electronic distance-learning methods. The training provided by these establishments may include the use of simulators and simulation methods.

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