Activities are generally managed from a relatively fixed place of business, but the actual construction work is performed at one or more different sites. Establishments are described as plants, factories or mills and characteristically use power-driven machines and materials handling equipment. Establishments providing to the general public or to other business enterprises, passenger and freight transportation, communications services, or electricity, gas, steam, water or sanitary services, and all establishments of the United States Postal Service. Establishments engaged in selling merchandise for personal or household consumption and rendering services incidental to the sale of goods. Establishment is usually a place of business and is engaged in activities to attract the general public to buy.
Insurance covers carriers of all types of insurance, and insurance agents and brokers.
Real estate includes owners, lessors, lessees, buyers, sellers, agents and developers of real estate. Includes executive, legislative, judicial, administrative and regulatory activities of federal, state, local, and international governments. Private establishments primarily engaged in the same activities as government establishments in Public Administration are classified in Major Groups 01-89 according to the activity in which they are engaged.