54151 Computer Systems Design and Related Services
This industry comprises establishments primarily engaged in providing expertise in the field of information technologies through one or more of the following activities: (1) writing, modifying, testing, and supporting software to meet the needs of a particular customer; (2) planning and designing computer systems that integrate computer hardware, software, and communication technologies; (3) on-site management and operation of clients computer systems and/or data processing facilities; and (4) other professional and technical computer-related advice and services.

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.

Cross-References. Establishments primarily engaged in–
• Publishing packaged software–are classified in Industry 511210, Software Publishers; and
• 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–are classified in U.S. Industry 541512, Computer Systems Design Services.

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.

Cross-References. Establishments primarily engaged in–
• Selling computer hardware or software products and systems from retail-like locations, and providing supporting services, such as customized assembly of personal computers–are classified in Industry 443120, Computer and Software Stores; and
• Merchant wholesaling computer hardware or software products and providing supporting services, such as customized assembly of personal computers–are classified in Industry 423430, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers.

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.

Cross-References. Establishments primarily engaged in–
• Establishments primarily engaged in providing computer data processing services at their own facility for others are classified in Industry 518210, Data Processing, Hosting, and Related 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).

Cross-References. Establishments primarily engaged in–
• Establishments primarily engaged in environmental consulting are classified in Industry 541620, Environmental Consulting Services.

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.

Cross-References. Establishments primarily engaged in–
• Providing custom computer programming services–are classified in U.S. Industry 541511, Custom Computer Programming Services;
• Providing computer systems integration design services–are classified in U.S. Industry 541512, Computer Systems Design Services; and
• Providing computer systems and/or data processing facilities management services–are classified in U.S. Industry 541513, Computer Facilities Management Services.

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.

Cross-References. Establishments primarily engaged in–
• 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, are classified in Industry 561110, Office Administrative Services;
• Establishments providing operations consulting services are classified in U.S. Industry 541614, Process, Physical Distribution, and Logistics Consulting Services;
• Establishments primarily engaged in administering, overseeing, and managing other establishments of the company or enterprise (except government establishments) are classified in U.S. Industry 551114, Corporate, Subsidiary, and Regional Managing Offices;
• Government establishments primarily engaged in administering, overseeing, and managing governmental programs are classified in, Sector 92–Public Administration; and
• Establishments primarily engaged in providing investment advice are classified in Industry 523930, Investment Advice.

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.

Cross-References. Establishments primarily engaged in–
• Providing administrative and general management consulting services–are classified in U.S. Industry 541611, Administrative Management and General Management Consulting Services;
• Providing human resources consulting services–are classified in U.S. Industry 541612, Human Resources Consulting Services;
• Providing marketing consulting services–are classified in U.S. Industry 541613, Marketing Consulting Services; and
• Providing process, physical distribution, and logistics consulting services–are classified in U.S. Industry 541614, Process, Physical Distribution, and Logistics Consulting Services.