The UIA compiles statistics on the meetings that fulfil the following criteria:

• International meetings of associations on the UIA database,
• Other international meetings that last a minimum of 2/3 days and there is participation by a minimum of 250/300 members of five different nationalities, 40% of which do not come from the hosting country.

These are the cities that held the biggest number of meetings of associations, included into the UIA Report:

• Warsaw – 40
• Kraków – 30
• Gdańsk – 12
• Wrocław – 7
• Poznań – 6

The cities that have also qualified for the statistics are: Borowice, Bydgoszcz, Częstochowa, Gdynia, Katowice, Krzyżowa, Kwidzyn, Łódź, Rzeszów, Sękocin Stary, Sieniawa, Sopot and Zakopane.

The Union of International Associations (UIA) is an organisation that deals with studying the size of the meetings industry in the context of meetings of international  associations. Within the UIA activity there is also the publication of  the calendar of conferences, as well as the associations database. Organisations, foundations, companies or individual persons interested in the Union of International Association’s activities and its aims, as well as participation in them, may become Union members. What’s more, each year, at the General Meeting, over 250 most active individual members are selected.  By presenting them with this international award, their commitment to long-lasting international activity is accentuated.