In search of assignments just before the war, Mien Ruys moved her bureau of design to Amsterdam. Since the 70’s this bureau has increased in size employing other garden and landscape architects.

The Buro Mien Ruys Garden and Landscape architects B.V. in Amsterdam is an independent advice bureau on gardens, landscape and green areas in towns and cities. In relation to the Mien Ruys Gardens Foundation this bureau acts as an advisor to the Mien Ruys Gardens management.