diff --git a/crewpulse/settings.py b/crewpulse/settings.py
index 4de4ce4..8f10119 100644
--- a/crewpulse/settings.py
+++ b/crewpulse/settings.py
@@ -31,13 +31,20 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
+    #ADD_ONs
     'jazzmin',
+    'phonenumber_field',
+
+    #Defaul
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+
+    # My Apps
+    'main',
 ]
 
 MIDDLEWARE = [
diff --git a/main/admin.py b/main/admin.py
index 8c38f3f..0d480c8 100644
--- a/main/admin.py
+++ b/main/admin.py
@@ -1,3 +1,35 @@
 from django.contrib import admin
+import main.models as MainDB
 
 # Register your models here.
+@admin.register(MainDB.contributors)
+class MainDB_contributorsAdmin(admin.ModelAdmin):
+
+    list_display = ('id', 'da_approval', 'teamleader', 'second_teamleader', 'gender', 'full_name', 'birthday_year', 'get_congregation', 'pioneer', 'get_deparment', 'mobilnumber', 'email')
+
+    list_filter = ('gender', 'roles', 'deparment', 'congregation')
+
+    def get_congregation(self, obj):
+        # Gebe eine durch Komma getrennte Liste der Namen der contributors zurück
+        return ", ".join([str(congregation) for congregation in obj.congregation.all()])
+    get_congregation.short_description = 'Versammlung'  # Optional: Benennung der Spalte
+    
+    def get_deparment(self, obj):
+        # Gebe eine durch Komma getrennte Liste der Namen der contributors zurück
+        return ", ".join([str(deparment) for deparment in obj.deparment.all()])
+    get_deparment.short_description = 'Abteilung'  # Optional: Benennung der Spalte
+
+    # Methode, um den vollständigen Namen zu kombinieren
+    def full_name(self, obj):
+        return f"{obj.name}, {obj.firstname}"
+    full_name.short_description = 'Name'  # Spaltenüberschrift im Admin ändern
+
+    # Methode, um nur das Jahr des Birthdays anzuzeigen
+    def birthday_year(self, obj):
+        return obj.birthday.year if obj.birthday else None
+    birthday_year.short_description = 'Geburtsjahr'
+
+
+admin.site.register(MainDB.department)
+admin.site.register(MainDB.congregation)
+admin.site.register(MainDB.role)
\ No newline at end of file
diff --git a/main/models.py b/main/models.py
index 71a8362..d58d962 100644
--- a/main/models.py
+++ b/main/models.py
@@ -1,3 +1,90 @@
 from django.db import models
+from phonenumber_field.modelfields import PhoneNumberField
+
 
 # Create your models here.
+class department(models.Model):
+    title = models.CharField(max_length=255)
+    uebergeordnete_abteilung = models.ForeignKey(
+        'self',  # Verweis auf dieselbe Tabelle
+        on_delete=models.SET_NULL,  # Verhalten beim Löschen der übergeordneten Abteilung
+        null=True,  # Darf leer sein (falls keine übergeordnete Abteilung existiert)
+        blank=True,
+        related_name='unterabteilungen'  # Ermöglicht Rückbezug
+    )
+
+    class Meta:
+        verbose_name = ("Abteilung")
+        verbose_name_plural = ("Abteilungen")
+
+    def __str__(self):
+        return self.title
+
+class congregation(models.Model):
+
+    title = models.CharField(("Name"), max_length=150) 
+
+    class Meta:
+        verbose_name = ("Versammlung")
+        verbose_name_plural = ("Versammlungen")
+
+    def __str__(self):
+        return self.title
+
+    def get_absolute_url(self):
+        return reverse("congregation_detail", kwargs={"pk": self.pk})
+
+class role(models.Model):
+
+    name = models.CharField(("name"), max_length=50)
+
+    class Meta:
+        verbose_name = ("Rolle")
+        verbose_name_plural = ("Rollen")
+
+    def __str__(self):
+        return self.name
+
+    def get_absolute_url(self):
+        return reverse("role_detail", kwargs={"pk": self.pk})
+
+
+class contributors(models.Model):
+
+    DAY_OPTIONS = [
+        ('MI', 'Mittwoch'),
+        ('DO', 'Donnerstag'),
+        ('FRV', 'Freitag vormittag'),
+        ('FRN', 'Freitag nachmittag'),
+        ('SAV', 'Samstag vormittag'),
+        ('SAN', 'Samstag nachmittag'),
+        ('SOV', 'Sonntag vormittag'),
+        ('SON', 'Sonntag nachmittag'),
+        ('SOA', 'Sonntag abbau'),
+        ('MO', 'Montag'),
+    ]
+
+    name = models.CharField(("name"), max_length=50)
+    firstname = models.CharField(("vorname"), max_length=50)
+    birthday = models.DateField(("geburtstag"), auto_now=False, auto_now_add=False)
+    congregation = models.ManyToManyField("main.congregation", verbose_name=("congregation"), null=True)
+    roles = models.ManyToManyField("main.role", verbose_name=("role"), null=True)
+    pioneer = models.BooleanField(("pionier"))
+    gender = models.CharField("Geschlecht",max_length=20, choices=[("M", "Männlich"), ("W", "Weiblich")])
+    da_approval = models.BooleanField(("Freigabe"), default=False)
+    deparment = models.ManyToManyField("main.department", verbose_name=("department"), null=True, blank=True)
+    availability = models.CharField(("Verfügbarkeit"), max_length=50, choices=DAY_OPTIONS, blank=True)
+    teamleader = models.BooleanField(("Leiter"), default=False)
+    second_teamleader = models.BooleanField(("V-Leiter"), default=False)
+    mobilnumber = PhoneNumberField(("Mobilnummer"), null=True, blank=True)
+    email = models.EmailField(("E-Mail"), max_length=254, null=True, blank=True)
+
+    class Meta:
+        verbose_name = ("Helfer")
+        verbose_name_plural = ("Helfer")
+
+    def __str__(self):
+        return f'{self.name}, {self.firstname}'
+
+    def get_absolute_url(self):
+        return reverse("contributors_detail", kwargs={"pk": self.pk})
\ No newline at end of file