Manufacturers make products, from raw materials or making parts which they then sell for profit. The companies which do the physical goods, such as cars or pipes, consider as manufacturers.

Service firms offer the intangible goods or services and typically make profit, raising for a labour or other services rendered to the government, other firms or consumers. The organisations in limits from set dressers of the house to consulting firms to restaurants and even the compere are types of firms of service.

Retail sellers and Distributors operate as intermediaries in reception of the goods made by manufacturers to the planned consumer, making profit as a result of maintenance of service of distribution or sale. The shops most focused by the consumer and the catalogue companies - distributors or retail sellers.

The agriculture and extracting firms are interested in manufacture of raw materials, such as factories or minerals.

Financial firms include banks and other companies which make profit through investments and management of the capital.

Information firms make profit first of all from resale of intellectual property and include studios of cinema, publishers and the company - software developers.

Utilities make public service, such as a heat, an electricity, or processing of sewage, and are usually diplomaed government.

Real estate firms make profit on sale, rent, and development of properties, houses and buildings.

Firms of transportation from a site to a site, make profit on transportation expenses.