The church is a member of a number of ecumenical bodies:
- Ekumenická rada církví v České Republice (Ecumenical Council of Churches in CR)
- World Council of Churches
- World Communion of Reformed Churches
- Lutheran World Federation
- Conference of European Churches
- Community of Protestant Churches in Europe (Leuenberg Church Fellowship)
The church has also the bilateral relations with a great number of the churches in Europe and on other continents. You will find their names in the Czech web-side of the church: here.