The Irish Landscape Institute is the professional body representing Landscape Architects in Ireland, governed by a Constitution and a Code of Professional Conduct. The Institute has a membership of 160, made up of fellows and full members, graduate members, student members, honorary members and affiliates. ILI is a registered member of both EFLA (European Foundation for Landscape Architecture) and IFLA (International Federation of Landscape Architects).
In promoting knowledge of the profession, the Institute runs a lecture series, which is generally free and open to non-members and associated professionals. Conferences are held regularly, and the ILI Awards are held bi-annually, honoring excellence in the fields of landscape planning, design and management.