336411 - Aircraft Manufacturing
This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing or assembling complete aircraft; (2) developing and making aircraft prototypes; (3) aircraft conversion (i.e., major modifications to systems); and (4) complete aircraft overhaul and rebuilding (i.e., periodic restoration of aircraft to original design specifications).
336413 - Other Aircraft Parts and Auxiliary Equipment Manufacturing
This U.S. industry comprises establishments primarily engaged in (1) manufacturing aircraft parts or auxiliary equipment (except engines and aircraft fluid power subassemblies) and/or (2) developing and making prototypes of aircraft parts and auxiliary equipment. Auxiliary equipment includes such items as crop dusting apparatus, armament racks, inflight refueling equipment, and external fuel tanks.
488190 - Other Support Activities for Air Transportation
This industry comprises establishments primarily engaged in providing specialized services for air transportation (except air traffic control and other airport operations).
Illustrative Examples: Aircraft maintenance and repair services (except factory conversions, overhauls, rebuilding)
Aircraft testing services
488320 - Marine Cargo Handling
This industry comprises establishments primarily engaged in providing stevedoring and other marine cargo handling services (except warehousing).
493110 - General Warehousing and Storage
This industry comprises establishments primarily engaged in operating merchandise warehousing and storage facilities. These establishments generally handle goods in containers, such as boxes, barrels, and/or drums, using equipment, such as forklifts, pallets, and racks. They are not specialized in handling bulk products of any particular type, size, or quantity of goods or products.
493190 - Other Warehousing and Storage
This industry comprises establishments primarily engaged in operating warehousing and storage facilities (except general merchandise, refrigerated, and farm product warehousing and storage).
511210 - Software Publishers
This industry comprises establishments primarily engaged in computer software publishing or publishing and reproduction. Establishments in this industry carry out operations necessary for producing and distributing computer software, such as designing, providing documentation, assisting in installation, and providing support services to software purchasers. These establishments may design, develop, and publish, or publish only.
518210 - Data Processing, Hosting, and Related Services
This industry comprises establishments primarily engaged in providing infrastructure for hosting or data processing services. These establishments may provide specialized hosting activities, such as web hosting, streaming services or application hosting; provide application service provisioning; or may provide general time-share mainframe facilities to clients. Data processing establishments provide complete processing and specialized reports from data supplied by clients or provide automated data processing and data entry services.
541330 - Engineering Services
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.
541330 - Military and Aerospace Equipment and Military Weapons
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.
541330 - Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992
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.
541330 - 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.
541350 - Building Inspection Services
This industry comprises establishments primarily engaged in providing building inspection services. These establishments typically evaluate all aspects of the building structure and component systems and prepare a report on the physical condition of the property, generally for buyers or others involved in real estate transactions. Building inspection bureaus and establishments providing home inspection services are included in this industry.
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.
541512 - Computer Systems Design Services
This U.S. industry comprises establishments primarily engaged in planning and designing computer systems that integrate computer hardware, software, and communication technologies. The hardware and software components of the system may be provided by this establishment or company as part of integrated services or may be provided by third parties or vendors. These establishments often install the system and train and support users of the system.
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.
541519 - Other Computer Related Services
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.
541519 - Information Technology Value Added Resellers(18)
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.
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.
541612 - Human Resources Consulting Services
This U.S. industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations in one or more of the following areas: (1) human resource and personnel policies, practices, and procedures; (2) employee benefits planning, communication, and administration; (3) compensation systems planning; and (4) wage and salary administration.
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.
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.
541620 - Environmental Consulting Services
This industry comprises establishments primarily engaged in providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials. These establishments identify problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. They employ a multidisciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, and environmental law. Establishments providing sanitation or site remediation consulting services are included in this industry.
541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
This U.S. industry comprises establishments primarily engaged in 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.
561110 - Office Administrative Services
This industry comprises 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 for others on a contract or fee basis. These establishments do not provide operating staff to carry out the complete operations of a business.
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).
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).
Illustrative Examples:
  • Agricultural consulting services
  • Motion picture consulting services
  • Biological consulting services
  • Physics consulting services
  • Chemical consulting services
  • Radio consulting services
  • Economic consulting services
  • Safety consulting services
  • Energy consulting services
  • Security consulting services
561210 - Facilities Support Services
This industry comprises establishments primarily engaged in providing operating staff to perform a combination of support services within a client’s facilities. Establishments in this industry typically provide a combination of services, such as janitorial, maintenance, trash disposal, guard and security, mail routing, reception, laundry, and related services to support operations within facilities. These establishments provide operating staff to carry out these support activities; but are not involved with or responsible for the core business or activities of the client. Establishments providing facilities (except computer and/or data processing) operation support services and establishments providing private jail services or operating correctional facilities (i.e., jails) on a contract or fee basis are included in this industry.
561422 - Telemarketing Bureaus and Other Contact Centers
This U.S. industry comprises establishments primarily engaged in operating call centers that initiate or receive communications for others via telephone, facsimile, email, or other communication modes for purposes such as: (1) promoting clients’ products or services, (2) taking orders for clients, (3) soliciting contributions for a client, and (4) providing information or assistance regarding a client’s products or services. These establishments do not own the product or provide the services they are representing on behalf of clients.
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 customers. 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.
561439 - Other Business Serviec Centers (Including Copy Shops)
This U.S. industry comprises (1) establishments generally known as copy centers or shops primarily engaged in providing photocopying, duplicating, blueprinting, and other document copying services, without also providing printing services (e.g., offset printing, quick printing, digital printing, prepress services) and (2) establishments (except private mail centers) engaged in providing a range of office support services (except printing services), such as document copying services, facsimile services, word processing services, on-site PC rental services, and office product sales.
561320 - Temporary Help Services
This industry comprises establishments primarily engaged in supplying workers to clients’ businesses for limited periods of time to supplement the working force of the client. The individuals provided are employees of the temporary help service establishment. However, these establishments do not provide direct supervision of their employees at the clients’ work sites.
Illustrative Examples:
  • Help supply services
  • Model supply services
  • Labor (except farm) contractors (i.e., personnel suppliers)
  • Temporary employment or temporary staffing services
  • Manpower pools
611710 - Educational Support Services
This industry comprises establishments primarily engaged in providing noninstructional services that support educational processes or systems.
Illustrative Examples:
  • Educational consultants
  • Educational testing services
  • Educational guidance counseling services
  • Student exchange programs
  • Educational testing evaluation services
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.

Illustrative Examples:

  • Providing verbatim reporting and stenotype recording of live legal proceedings and transcribing subsequent recorded materials–are classified in U.S. Industry 561492, Court Reporting and Stenotype Services;
  • Performing prepress and postpress services in support of printing activities–are classified in Industry 323120, Support Activities for Printing;
  • Providing document translation services–are classified in Industry 541930, Translation and Interpretation Services;
  • Photocopying, duplicating, and other document copying services, with or without a range of other office support services (except printing)–are classified in U.S. Industry 561439, Other Business Service Centers (including Copy Shops); and
  • Providing document copying services in combination with printing services, with or without a range of other office support services, and establishments known as quick or digital printers–are classified in U.S. Industry 323111, Commercial Printing (except Screen and Books).
621399 - Offices of All Other Miscellaneous Health Practitioners
This U.S. industry comprises establishments of independent health practitioners (except physicians; dentists; chiropractors; optometrists; mental health specialists; physical, occupational, and speech therapists; audiologists; and podiatrists). These practitioners operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers.
811118 - Other Automotive Mechanical and Electrical Repair and Maintenance
This U.S. industry comprises establishments primarily engaged in providing specialized mechanical or electrical repair and maintenance services (except engine repair and replacement, exhaust systems repair, and transmission repair) for automotive vehicles, such as passenger cars, trucks, and vans, and all trailers.
811213 - Communication Equipment Repair and Maintenance
This U.S. industry comprises establishments primarily engaged in repairing and maintaining communication equipment without retailing new communication equipment, such as telephones, fax machines, communications transmission equipment, and two-way radios.
811219 - Other Electronic and Precision Equipment Repair and Maintenance
This U.S. industry comprises establishments primarily engaged in repairing and maintaining (without retailing) electronic and precision equipment (except consumer electronics, computers and office machines, and communications equipment). Establishments in this industry repair and maintain equipment, such as medical diagnostic imaging equipment, measuring and surveying instruments, laboratory instruments, and radar and sonar equipment.
811310 - Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
This industry comprises establishments primarily engaged in the repair and maintenance of commercial and industrial machinery and equipment. Establishments in this industry either sharpen/install commercial and industrial machinery blades and saws or provide welding (e.g., automotive, general) repair services; or repair agricultural and other heavy and industrial machinery and equipment (e.g., forklifts and other material handling equipment, machine tools, commercial refrigeration equipment, construction equipment, and mining machinery).