diff --git a/app/enums.py b/app/enums.py
index 34bf79f64..025a5c50b 100644
--- a/app/enums.py
+++ b/app/enums.py
@@ -36,7 +36,9 @@ class NotificationStatus(StrEnum):
 
     @classmethod
     def requested_statuses(cls):
-        return cls.sending_statuses() + cls.delivered_statuses() + cls.failure_statuses()
+        return (
+            cls.sending_statuses() + cls.delivered_statuses() + cls.failure_statuses()
+        )
 
 
 class NotificationType(StrEnum):
@@ -44,6 +46,12 @@ class NotificationType(StrEnum):
     SMS = "sms"
 
 
+class OrganizationType(StrEnum):
+    FEDERAL = "federal"
+    STATE = "state"
+    OTHER = "other"
+
+
 class ApiKeyType(StrEnum):
     NORMAL = "normal"
     TEAM = "team"
@@ -80,10 +88,3 @@ class VerificationStatus(StrEnum):
 class AuthType(StrEnum):
     EMAIL_AUTH = "email_auth"
     SMS_AUTH = "sms_auth"
-
-
-# TODO:
-# class UserRole(StrEnum):
-#     ADMIN = "admin"
-#     USER = "user"
-#     GUEST = "guest"
diff --git a/app/main/views/add_service.py b/app/main/views/add_service.py
index f6ec2fe50..507be6629 100644
--- a/app/main/views/add_service.py
+++ b/app/main/views/add_service.py
@@ -2,6 +2,7 @@ from flask import current_app, redirect, render_template, session, url_for
 from flask_login import current_user
 
 from app import service_api_client
+from app.enums import OrganizationType
 from app.formatters import email_safe
 from app.main import main
 from app.main.forms import CreateServiceForm
@@ -46,7 +47,7 @@ def _create_example_template(service_id):
 def add_service():
     default_organization_type = current_user.default_organization_type
     if default_organization_type is None:
-        default_organization_type = "federal"
+        default_organization_type = OrganizationType.FEDERAL
     form = CreateServiceForm(
         # This value is currently not useful but if it is not set it will result in a bug
         organization_type=default_organization_type
diff --git a/app/models/organization.py b/app/models/organization.py
index e9e30f460..f2dc1bf07 100644
--- a/app/models/organization.py
+++ b/app/models/organization.py
@@ -2,14 +2,15 @@ from collections import OrderedDict
 
 from werkzeug.utils import cached_property
 
+from app.enums import OrganizationType
 from app.models import JSONModel, ModelList, SerialisedModelCollection, SortByNameMixin
 from app.notify_client.organizations_api_client import organizations_client
 
 
 class Organization(JSONModel, SortByNameMixin):
-    TYPE_FEDERAL = "federal"
-    TYPE_STATE = "state"
-    TYPE_OTHER = "other"
+    TYPE_FEDERAL = OrganizationType.FEDERAL
+    TYPE_STATE = OrganizationType.STATE
+    TYPE_OTHER = OrganizationType.OTHER
 
     TYPE_LABELS = OrderedDict(
         [
diff --git a/app/models/service.py b/app/models/service.py
index e9bcf8a7d..c2f29a8fe 100644
--- a/app/models/service.py
+++ b/app/models/service.py
@@ -322,7 +322,7 @@ class Service(JSONModel, SortByNameMixin):
 
     @property
     def shouldnt_use_govuk_as_sms_sender(self):
-        return self.organization_type != Organization.TYPE_CENTRAL
+        return self.organization_type != Organization.TYPE_FEDERAL
 
     @cached_property
     def sms_senders(self):