The Evangelical Protestant churches in Bulgaria are organized according to independently registered denominations, which reflect the historical development of their forms of worship. However, they are all united in their moral and doctrinal stand. A proof of this unity is the Bulgarian Evangelical Alliance (BEA). The Bulgarian Evangelical Alliance serves as the historical successor of the Alliance of Evangelical Churches, which was founded and registered in 1909, but whose work was put to an end by measures of repression in 1948 on behalf of the ruling regime, which had no legal basis or express deed from the Council of Ministers.

The Bulgarian Evangelical Alliance is a non-profit organization, which has religious, educational and administrative functions. BEA works for the spreading of Christian values and assists in regulating relations between the various Evangelical churches on the one hand, and between Evangelicals and the state on the other.

The Bulgarian Evangelical Alliance is a member of the European Evangelical Alliance and the World Evangelical Alliance.

There are also some Bulgarian Evangelical denominations who are not members of the BEA.