The notion of control for an enterprise implies the ability to appoint a majority on board of directors to run the enterprise, guide its activities and determine its strategy. This ability is exercised by a single direct investor or a group of associated shareholders acting in concert and controlling the majority (+50%) of ordinary shares or voting power. The control of an enterprise may be direct or indirect, immediate or ultimate.
Organization for Economic Cooperation and Development (OECD), "Measuring Globalisation. OECD Handbook on Economic Globalisation Indicators (2005 Edition)", Paris, 2005