diff --git a/sponsors/api.py b/sponsors/api.py
index c5a8173ab..e5ef245df 100644
--- a/sponsors/api.py
+++ b/sponsors/api.py
@@ -34,6 +34,7 @@ def get(self, request, *args, **kwargs):
         for sponsorship in sponsorships.select_related("sponsor").iterator():
             sponsor = sponsorship.sponsor
             base_data = {
+                "sponsor_id": sponsor.id,
                 "sponsor": sponsor.name,
                 "sponsor_slug": sponsor.slug,
                 "level_name": sponsorship.level_name,