* Municipality of Custonaci

* C.I.R.S. – Hyblean Center of Speleo-Hydrogeological Research, Ragusa, Italy

* Department of Biological, Geological and Environmental Sciences, University of Catania, Italy

* UNESCO Chair on Karst Education, Vipava, Slovenia

* ZRC SAZU Karst Research Institute, Postojna, Slovenia

* TETIDE APS, Italy

* University of Bari

* University of Messina

* University of Trieste