Quaternary sector in the context of "Service sector"

In economics, the tertiary sector (also known as the service sector) is the economic sector which comprises the provision of services as opposed to the manufacture of finished goods. Services (also known as "intangible goods") include attention, advice, access, experience and affective labour.

The tertiary sector involves the provision of services to other businesses as well as to final consumers. Services may involve the transport, distribution and sale of goods from a producer to a consumer, as may happen in wholesaling and retailing, pest control or financial services. The goods may be transformed in the process of providing the service, as happens in the restaurant industry. However, the focus is on people by interacting with them and serving the customers rather than transforming the physical goods. The production of information has been long regarded as a service, but some economists now attribute it to a fourth sector, called the quaternary sector.

This is a list of United States–based companies having the most employees globally. For some companies listed, the majority of total employees live and work in other countries.

Employees are mixed and composed of various Economic sectors such as the Business sector, Private sector, Public sector, and the Voluntary sector. Additional classifications include the Agricultural (or primary) sector, Industrial (or secondary) sector, Service (or tertiary) sector, Information (or quaternary) sector, and Human (or quinary) sector.