diff --git a/spoolman/database/filament.py b/spoolman/database/filament.py
index 1017203..fb9068e 100644
--- a/spoolman/database/filament.py
+++ b/spoolman/database/filament.py
@@ -69,7 +69,11 @@ async def find(
     article_number: Optional[str] = None,
 ) -> list[models.Filament]:
     """Find a list of filament objects by search criteria."""
-    stmt = select(models.Filament).options(contains_eager(models.Filament.vendor)).join(models.Filament.vendor)
+    stmt = (
+        select(models.Filament)
+        .options(contains_eager(models.Filament.vendor))
+        .join(models.Filament.vendor, isouter=True)
+    )
     if vendor_name is not None:
         stmt = stmt.where(models.Vendor.name.ilike(f"%{vendor_name}%"))
     if vendor_id is not None:
diff --git a/spoolman/database/spool.py b/spoolman/database/spool.py
index 9ba2cae..37e4792 100644
--- a/spoolman/database/spool.py
+++ b/spoolman/database/spool.py
@@ -74,8 +74,8 @@ async def find(
     """Find a list of spool objects by search criteria."""
     stmt = (
         sqlalchemy.select(models.Spool)
-        .join(models.Spool.filament)
-        .join(models.Filament.vendor)
+        .join(models.Spool.filament, isouter=True)
+        .join(models.Filament.vendor, isouter=True)
         .options(contains_eager(models.Spool.filament).contains_eager(models.Filament.vendor))
     )
     if filament_name is not None: