The foundation aims to provide care for the female and male descendants of Mr. Johann Bernhard Preiswerk-Wolleb, who bear or have borne the surname Preiswerk by descent, in the following areas: a) costs of education, b) costs of endowment, e.g. in the event of marriage or registered partnership, c) costs in the event of birth or death, d) costs for training and further education, e) costs in the context of medical treatment (doctor, hospital, rehabilitation, etc.), f) costs in connection with the establishment of one's own business or the start of self-employment, and g) in case of need. The family foundation can take or support all measures that promote its main purpose or make it possible, respectively support it (in particular, creating and maintaining a genealogy, its digitization, and the organization of family days).