diff --git a/openedx/core/djangoapps/appsembler/sites/tests/test_utils.py b/openedx/core/djangoapps/appsembler/sites/tests/test_utils.py
index d3ade4455512..61629f123387 100644
--- a/openedx/core/djangoapps/appsembler/sites/tests/test_utils.py
+++ b/openedx/core/djangoapps/appsembler/sites/tests/test_utils.py
@@ -1,12 +1,18 @@
 import unittest
+
+from django.db.models import QuerySet
 from mock import patch
 
 from django.core.exceptions import ImproperlyConfigured, MultipleObjectsReturned
-from django.test import TestCase, override_settings
+from django.test import TestCase
 from django.test.client import RequestFactory
 
 from openedx.core.djangoapps.appsembler.api.tests.factories import OrganizationFactory
-from openedx.core.djangoapps.appsembler.sites.utils import get_current_organization, get_initial_page_elements
+from openedx.core.djangoapps.appsembler.sites.utils import (
+    get_current_organization,
+    get_initial_page_elements,
+    get_active_sites,
+)
 from openedx.core.djangoapps.site_configuration.tests.factories import SiteFactory
 from organizations.models import Organization
 
@@ -24,6 +30,44 @@ def test_initial_page_elements(self):
         })
 
 
+class ActiveSitesTestCase(TestCase):
+    def setUp(self):
+        super(ActiveSitesTestCase, self).setUp()
+        self.siteFoo = SiteFactory.create(domain='foo.dev', name='foo.dev')
+        self.siteBar = SiteFactory.create(domain='bar.dev', name='bar.dev')
+        self.organizationA = OrganizationFactory(sites=[self.siteFoo])
+        self.organizationB = OrganizationFactory(sites=[self.siteBar])
+
+    def test_get_active_sites(self):
+        """
+        Basic test for results.
+        """
+        with patch('openedx.core.djangoapps.appsembler.sites.utils.get_active_organizations') as mocked:
+            mocked.return_value = [self.organizationA, self.organizationB]
+            active_sites = get_active_sites()
+            assert len(active_sites) == 2
+            assert active_sites[0].domain == 'bar.dev'
+            assert active_sites[1].domain == 'foo.dev'
+
+    def test_get_active_sites_queryset(self):
+        """
+        Should return QuerySet to work well with ViewSets and other plugins.
+        """
+        with patch('openedx.core.djangoapps.appsembler.sites.utils.get_active_organizations') as mocked:
+            mocked.return_value = [self.organizationA, self.organizationB]
+            active_sites = get_active_sites()
+            assert type(active_sites) == QuerySet
+
+    def test_get_active_sites_ordering(self):
+        """
+        Result ordering is useful for tests but it's worth testing it itself.
+        """
+        with patch('openedx.core.djangoapps.appsembler.sites.utils.get_active_organizations') as mocked:
+            mocked.return_value = [self.organizationA, self.organizationB]
+            active_sites = get_active_sites('-domain')
+            assert active_sites[0].domain == 'foo.dev'
+
+
 class OrganizationByRequestTestCase(TestCase):
     def setUp(self):
         super(OrganizationByRequestTestCase, self).setUp()
diff --git a/openedx/core/djangoapps/appsembler/sites/utils.py b/openedx/core/djangoapps/appsembler/sites/utils.py
index cdc1bb36807b..c87fe4b48126 100644
--- a/openedx/core/djangoapps/appsembler/sites/utils.py
+++ b/openedx/core/djangoapps/appsembler/sites/utils.py
@@ -54,9 +54,9 @@ def get_site_by_organization(org):
     return org.sites.all()[0]
 
 
-def get_active_organizations():
+def _get_active_tiers_uuids():
     """
-    Get active organizations based on Tiers information.
+    Get active Tier organiation UUIDs from the Tiers (AMC Postgres) database.
 
     Note: This mostly a hack that's needed for improving the performance of
           batch operations by excluding dead sites.
@@ -65,20 +65,33 @@ def get_active_organizations():
     """
     from tiers.models import Tier
     # This queries the AMC Postgres database
-    active_tiers = Tier.objects.filter(
+    active_tiers_uuids = Tier.objects.filter(
         Q(tier_enforcement_exempt=True) |
         Q(tier_expires_at__gte=timezone.now())
     ).annotate(
         organization_edx_uuid=F('organization__edx_uuid')
     ).values_list('organization_edx_uuid', flat=True)
+    return active_tiers_uuids
+
+
+def get_active_organizations():
+    """
+    Get active organizations based on Tiers information.
+
+    Note: This mostly a hack that's needed for improving the performance of
+          batch operations by excluding dead sites.
+
+    TODO: This helper should live in a future Tahoe Sites package.
+    """
+    active_tiers_uuids = _get_active_tiers_uuids()
 
     # Now back to the LMS MySQL database
     return Organization.objects.filter(
-        edx_uuid__in=[str(edx_uuid) for edx_uuid in active_tiers],
+        edx_uuid__in=[str(edx_uuid) for edx_uuid in active_tiers_uuids],
     )
 
 
-def get_active_sites():
+def get_active_sites(order_by='domain'):
     """
     Get active sites based on Tiers information.
 
@@ -87,10 +100,9 @@ def get_active_sites():
 
     TODO: This helper should live in a future Tahoe Sites package.
     """
-    sites = []
-    for organization in get_active_organizations():
-        sites.extend(organization.sites.all())
-    return sites
+    return Site.objects.filter(
+        organizations__in=get_active_organizations()
+    ).order_by(order_by)
 
 
 @beeline.traced(name="get_amc_oauth_client")