NAICS Codes for Federal Contracting

Establishments primarily engaged in planning and designing computer systems that integrate computer hardware, software, and communication technologies. Services include systems-engineering, custom software development, and technology-consulting engagements scoped to a specific client project.

Establishments primarily engaged in writing, modifying, testing, and supporting software to meet the needs of a particular customer.

Establishments primarily engaged in providing computer-related services (except custom programming, systems integration design, facilities management, and leasing).

Establishments primarily engaged in providing operating advice and assistance to businesses and other organizations on administrative management issues.

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.

Establishments primarily engaged in providing professional, scientific, or technical services (except those specifically classified elsewhere).

Establishments primarily responsible for the construction (including new work, additions, alterations, maintenance, and repairs) of commercial and institutional buildings and related structures.

Establishments primarily engaged in providing operating staff to perform a combination of support services within a client's facilities.

Establishments primarily engaged in cleaning building interiors, interiors of transportation equipment, and/or windows.

Establishments of health practitioners having the degree of M.D. or D.O. primarily engaged in the independent practice of general or specialized medicine.

Establishments primarily engaged in conducting research and experimental development (except nanotechnology and biotechnology research and experimental development) in the physical, engineering, and life sciences.

Establishments primarily engaged in translating written material and interpreting speech from one language to another.