diff --git a/esphome/components/api/list_entities.h b/esphome/components/api/list_entities.h
index 90769f9a81..7d0eb5bb13 100644
--- a/esphome/components/api/list_entities.h
+++ b/esphome/components/api/list_entities.h
@@ -15,7 +15,7 @@ class APIConnection;
     return this->client_->schedule_message_(entity, ResponseType::MESSAGE_TYPE, ResponseType::ESTIMATED_SIZE); \
   }
 
-class ListEntitiesIterator : public ComponentIterator {
+class ListEntitiesIterator final : public ComponentIterator {
  public:
   ListEntitiesIterator(APIConnection *client);
 #ifdef USE_BINARY_SENSOR
diff --git a/esphome/components/api/subscribe_state.h b/esphome/components/api/subscribe_state.h
index 6f8577ca7b..9edf0f0f0c 100644
--- a/esphome/components/api/subscribe_state.h
+++ b/esphome/components/api/subscribe_state.h
@@ -16,7 +16,7 @@ class APIConnection;
     return this->client_->send_##entity_type##_state(entity); \
   }
 
-class InitialStateIterator : public ComponentIterator {
+class InitialStateIterator final : public ComponentIterator {
  public:
   InitialStateIterator(APIConnection *client);
 #ifdef USE_BINARY_SENSOR