Izmir is one of our cities with a rich history, known for its geographical structure and its embrace of different cultures and religions. Izmir, a city that holds a central position in many areas, particularly in art, culture, and trade, is one of our cities that has been a focal point from the past to the present, with a history dating back to around 8500 BC. Being one of the first regions where Christianity spread, Izmir has historically been a popular center for the Christian world. With its incorporation into Ottoman lands, it continued to be a favored center.The city of Izmir, which holds an important position in the Christian world, is home to communities with different cultures and civilizations living together, as well as adherents of various faiths who have built their own places of worship to practice their beliefs and rituals freely. Thus, Izmir has become one of our cities famous not only for its mosques but also for its churches. Recently, it has been observed that churches, particularly those with Protestant and Evangelical identities, have been operating within a more intensive working system in Izmir. The church is the term used for the community formed by those who believe that Jesus provides spiritual salvation and strive to live a life within the framework of Christian faith, as well as the place of worship where this community performs its religious rituals. In the understanding of Christianity, churches and communities that emphasize theological and moral structures rather than sacraments are also defined as Protestant groups. Protestantism, which aims to return Christianity to its form during the time of Jesus, emphasizes the importance of the spiritual connection that will be established between the individual and God. According to the Protestant perspective, it is accepted that the individual experiences spiritual enlightenment through inspiration believed to be sent by the Holy Spirit, alongside faith in Jesus’ salvific role in their personal life. Therefore, rather than focusing on certain sacraments, the Protestant viewpoint highlights the importance of spiritual connection for the individual, centering on the spiritual relationship with Jesus as the path to spiritual salvation. Evangelicalism, in this respect, is a movement that aims to spread the message of the Gospel and the belief in Jesus’ salvation to the entire world, essentially viewing the whole world as its field of activity. In this context, the efforts of the founding members of the churches included in our research area to organize the church community for administration and various activities, as well as their work towards establishing new churches, have been examined. The similarities between the process of the spread of Christianity in the post-Jesus era and the contemporary evangelical movement have also been addressed.This study focuses on the New Birth Protestant Church, which has a Protestant-Evangelical identity and is located in the center of İzmir, along with several key churches associated with it. The relevant churches were particularly visited on Sundays to observe their services and other activities. The founding dates of these Protestant churches and their development processes up to the present have also been identified. One-on-one interviews were conducted with both the founding members and pastors of the churches, as well as with visitors, in an effort to get to know them closely. Our aim is to gain a deeper understanding of a religious group that exists in our country from a researcher’s perspective and to introduce it. While examining the subject, written literature and the churches’ websites were utilized, and as mentioned above, field research was also conducted, with observations and evaluations shared based on direct participation in church programs. The information obtained was interpreted phenomenologically, and comparisons were occasionally included