The denomination is also sometimes called the Reformed Congregations in the Netherlands and North America, which can be confused with the Reformed Churches in the Netherlands (in Dutch: Gereformeerde Kerken in Nederland, abbreviated GKN), which were formed 1892 and which merged with the Netherlands Reformed Church (in Dutch: Nederlands Hervormde Kerk, abbreviated NHK) in 2004.

During World War II, many Reformed congregation church buildings were destroyed.

Shortly after the end of the war, there was a period of theological controversies in the denomination.

The Reformed Congregations have experienced a steady growth, in spite of the progressive secularisation in the Netherlands.

The denomination's membership in the wider urban area around Rotterdam increased seven times from what it was in 1950.

In worship, they use only the so-called "Statenvertaling" of the Bible, which was made on orders of the assembled authorities of the Republic of the United Netherlands Provinces in the 17th century and which can be compared with the King James Version of the Bible.

Furthermore, in Barneveld, Scherpenzeel, Gouda, Middelharnis, Dirksland and Ede new buildings were built after 2000.

Besides building, in a few places churches were acquired from other denominations, examples are the Westerkerk in Utrecht (1966) (before moving to the Nieuwe Westerkerk in 2018), the Ontmoetingskerk in Enkhuizen, the Magnalia Deikerk in Groningen and the Hoofdstraatkerk in Leiderdorp.

[8] Missionary projects are in Java with the Gereja Jemaat Protestan di Indonesia, which has 10,000 members and 68 congregations.