diff --git a/symposion/teams/__init__.py b/symposion/teams/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/symposion/teams/admin.py b/symposion/teams/admin.py
new file mode 100644
index 00000000..14b9ec25
--- /dev/null
+++ b/symposion/teams/admin.py
@@ -0,0 +1,17 @@
+from django.contrib import admin
+
+import reversion
+
+from symposion.teams.models import Team, Membership
+
+admin.site.register(Team,
+    prepopulated_fields={"slug": ("name",)},
+)
+
+
+class MembershipAdmin(reversion.VersionAdmin):
+    list_display = ["team", "user", "state"]
+    list_filter = ["team"]
+    search_fields = ["user__username"]
+
+admin.site.register(Membership, MembershipAdmin)
diff --git a/symposion/teams/models.py b/symposion/teams/models.py
new file mode 100644
index 00000000..cf016d57
--- /dev/null
+++ b/symposion/teams/models.py
@@ -0,0 +1,48 @@
+import datetime
+
+from django.db import models
+
+import reversion
+
+from django.contrib.auth.models import Permission, User
+
+
+TEAM_ACCESS_CHOICES = [
+    (1, "open"),
+    (2, "by application"),
+    (3, "by invitation")
+]
+
+
+class Team(models.Model):
+
+    slug = models.SlugField(unique=True)
+    name = models.CharField(max_length=100)
+    description = models.TextField(blank=True)
+    access = models.IntegerField(choices=TEAM_ACCESS_CHOICES)
+    permissions = models.ManyToManyField(Permission, blank=True)
+    created = models.DateTimeField(default=datetime.datetime.now, editable=False)
+    
+    def __unicode__(self):
+        return self.name
+
+
+MEMBERSHIP_STATE_CHOICES = [
+    (1, "applied"),
+    (2, "invited"),
+    (3, "declined"),
+    (4, "rejected"),
+    (5, "member"),
+    (6, "manager"),
+]
+
+
+class Membership(models.Model):
+
+    user = models.ForeignKey(User)
+    team = models.ForeignKey(Team)
+    state = models.IntegerField(choices=MEMBERSHIP_STATE_CHOICES)
+    message = models.TextField(blank=True)
+
+
+reversion.register(Membership)