diff --git a/litellm/proxy/management_endpoints/team_endpoints.py b/litellm/proxy/management_endpoints/team_endpoints.py
index 066c685c117..65bac09151a 100644
--- a/litellm/proxy/management_endpoints/team_endpoints.py
+++ b/litellm/proxy/management_endpoints/team_endpoints.py
@@ -3839,6 +3839,28 @@ async def _get_org_admin_org_ids(
     return org_ids if org_ids else None
 
 
+def _apply_org_admin_membership_union(
+    where_conditions: dict[str, Any],
+    org_admin_org_ids: Optional[list[str]],
+    user_team_ids: list[str],
+) -> None:
+    """Union (teams in the admin's orgs) with (teams the caller is a member of).
+
+    Mutates ``where_conditions`` in place for a self/bare org-admin query so
+    teams in orgs where the caller is only a member stay visible (LIT-3723).
+    An org admin with no memberships still sees their org teams, so this never
+    collapses to an empty result.
+    """
+    union_or: list[dict[str, Any]] = [{"organization_id": {"in": org_admin_org_ids}}]
+    if user_team_ids:
+        union_or.append({"team_id": {"in": user_team_ids}})
+    existing_or = where_conditions.pop("OR", None)  # set above from `search`
+    if existing_or is not None:
+        where_conditions["AND"] = [{"OR": existing_or}, {"OR": union_or}]
+    else:
+        where_conditions["OR"] = union_or
+
+
 async def _build_team_list_where_conditions(
     prisma_client: PrismaClient,
     team_id: Optional[str],
@@ -3917,14 +3939,7 @@ async def _build_team_list_where_conditions(
             # of), so teams in orgs where I'm only a member stay visible
             # (LIT-3723). An org admin with no memberships must still see org
             # teams, so do NOT early-return None here.
-            union_or: List[Dict[str, Any]] = [{"organization_id": {"in": org_admin_org_ids}}]
-            if user_team_ids:
-                union_or.append({"team_id": {"in": user_team_ids}})
-            existing_or = where_conditions.pop("OR", None)  # set above from `search`
-            if existing_or is not None:
-                where_conditions["AND"] = [{"OR": existing_or}, {"OR": union_or}]
-            else:
-                where_conditions["OR"] = union_or
+            _apply_org_admin_membership_union(where_conditions, org_admin_org_ids, user_team_ids)
         else:
             # When user_id is provided, filter by that user's direct team
             # memberships. For org admins the access control gate in
diff --git a/tests/test_litellm/proxy/management_endpoints/test_team_endpoints.py b/tests/test_litellm/proxy/management_endpoints/test_team_endpoints.py
index 5f3974b46fb..96776cf4782 100644
--- a/tests/test_litellm/proxy/management_endpoints/test_team_endpoints.py
+++ b/tests/test_litellm/proxy/management_endpoints/test_team_endpoints.py
@@ -3137,6 +3137,7 @@ async def test_list_team_v2_org_admin_sees_org_teams():
             organization_id=None,
             team_id=None,
             team_alias=None,
+            search=None,
             user_api_key_dict=mock_user_api_key_dict,
             page=1,
             page_size=10,
@@ -3149,9 +3150,12 @@ async def test_list_team_v2_org_admin_sees_org_teams():
         assert len(result["teams"]) == 1
         assert result["teams"][0].members_count == 1
 
-        # Verify org-scoped where clause
+        # Bare org-admin query is scoped to the admin's org via the union
+        # branch (LIT-3723). With no direct memberships the union collapses to
+        # the org-scope branch only.
         where = mock_db.litellm_teamtable.find_many.call_args.kwargs["where"]
-        assert where["organization_id"] == {"in": ["org_A"]}
+        assert where["OR"] == [{"organization_id": {"in": ["org_A"]}}]
+        assert "organization_id" not in where
 
 
 @pytest.mark.asyncio
@@ -3237,6 +3241,7 @@ async def test_list_team_v2_org_admin_own_user_id_sees_all_org_teams():
             organization_id=None,
             team_id=None,
             team_alias=None,
+            search=None,
             user_api_key_dict=mock_user_api_key_dict,
             page=1,
             page_size=10,
@@ -3248,9 +3253,18 @@ async def test_list_team_v2_org_admin_own_user_id_sees_all_org_teams():
         assert result["total"] == 2
         assert len(result["teams"]) == 2
 
-        # Verify the where clause scopes by org only — no team_id filter
+        # Self/bare org-admin query unions org-scoped teams with the caller's
+        # own memberships (LIT-3723). The org-scope branch still guarantees the
+        # admin sees *all* teams in their org (regression #30215); the team_id
+        # branch only widens the result and never clamps it. No top-level
+        # organization_id/team_id key that could hide an org team the admin
+        # isn't a direct member of.
         where = mock_db.litellm_teamtable.find_many.call_args.kwargs["where"]
-        assert where["organization_id"] == {"in": ["org_A"]}
+        assert where["OR"] == [
+            {"organization_id": {"in": ["org_A"]}},
+            {"team_id": {"in": ["team_1"]}},
+        ]
+        assert "organization_id" not in where
         assert "team_id" not in where