David Martin Kalberer

Managing director · sole signature · Zürich

Member of the foundation board · joint signature by two · Matten bei Interlaken

Member of the board of directors · sole signature · Zürich

joint signature by two · Zug

Managing director · sole signature · Wollerau

sole signature · Zug

Chair of the board of directors · joint signature by two · Zug

Managing director · sole signature · Wollerau