Gate One is a bottom up regional ANSP initiative established in 2013. The purpose of the coordination platform, is to promote the efficiency of European Air Traffic Management through enhanced cooperation among the participating service providers, as well as to ensure a more powerful and coordinated advocacy of the region in the European decision-making processes.

In 2014 Gate One members provided air navigation services for 3.4 million of IFR flights. This is about 35% of the total number of European Air Traffic. The Gate One average cost of ANS provision remained well below the European Key Performance Area cost efficiency target. Gate One covers 3 existing Functional Airspace Blocks – FABs (Baltic FAB, Danube FAB and FAB CE) and 2 non-EU Flight Information regions (Belgrade and Skopje).

The members of the Gate One initiative, which is one of the largest regional ANSP platforms in Europe, agreed to play a more active role to explore potential for future inter-FAB cooperation. 

The Gate One Agreement was signed in Sofia by the CEO's of the ANSPs of Austria, Bulgaria, the Czech Republic, Croatia, Poland, Lithuania, Hungary, Romania, Slovakia and Slovenia. The Parties agreed on the accession of Bosnia-Herzegovina ANSP at their next meeting in January 2014. In 2015, ANSPs of Macedonia and Serbia joined the cooperation platform as the 12th and 13th member.

The airspace between the Baltic Sea and the Black Sea is one of the most important gateways of the European continent: this region handles air traffic in the directions of North and South, East and West, sustaining links between the central and Nordic countries of the European Union as well as with the continent of Asia and the region of the Middle East.

The actual developments of the European Air Traffic Management industry point towards the assumption that the air navigation service providers of the region, operating under similar conditions, can only be efficient in attaining their interests in case they create a closer cooperation in the coordination of strategic issues. Furthermore, they need to strive towards representing a consolidated position concerning common technical and economic issues affecting the region and vital to the Union-wide picture of the Air Traffic Management.