The five basic vertical parts of an organization are hierarchy,span of control,authority,delegation and centralization or decentralization.

Vertical Parts

Components or sections of an organization that are arranged in a hierarchy or rank, often signifying different levels of authority or responsibility.

Organization

A structured group of people with a specific purpose, such as a business, government agency, or charity.

Hierarchy

A system of organization where entities are ranked one above the other based on status or authority.