Stakeholders are persons who have a stake ‘in the game’ and therefore an own interest about the well-being of their input.
In a wider sense ‘Stakeholders’ are not only people with an own stake, but everybody, who is impacted by the process or results of that project. This can include persons who have no obvious interests, such as customers or employees. The definition according to ISO10006 describes ‘Stakeholders’ as all persons with an interest in the project and persons who are affected by a project in any manner.