Also found in: Wikipedia.
core businessa division of a conglomerate firm which is considered to be central to the firm's corporate success insofar as it embodies the firm's CORE SKILLS and competencies and generates the bulk of its sales revenue and profits. See DIVERSIFICATION, DIVESTMENT.
By contrast, a non-core business is one which makes only a relatively small contribution to the firm's overall activities. However, the dividing-line between core and non-core businesses can be elastic when viewed over time. For example, BAT Industries' main core business was and continues to be tobacco products but from 1983 it developed through acquisitions a large insurance division which it also regarded as a core business, until it was demerged in 1997.