diff --git a/irs-api/src/main/java/org/eclipse/tractusx/irs/aaswrapper/job/ItemTreesAssembler.java b/irs-api/src/main/java/org/eclipse/tractusx/irs/aaswrapper/job/ItemTreesAssembler.java
index a3b72c93c7..e3ed3107c9 100644
--- a/irs-api/src/main/java/org/eclipse/tractusx/irs/aaswrapper/job/ItemTreesAssembler.java
+++ b/irs-api/src/main/java/org/eclipse/tractusx/irs/aaswrapper/job/ItemTreesAssembler.java
@@ -31,6 +31,7 @@
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 import org.eclipse.tractusx.irs.component.Bpn;
 import org.eclipse.tractusx.irs.component.Relationship;
 import org.eclipse.tractusx.irs.component.Submodel;
@@ -64,7 +65,7 @@ public class ItemTreesAssembler {
             tombstones.addAll(itemGraph.getTombstones());
             shells.addAll(itemGraph.getShells());
             submodels.addAll(itemGraph.getSubmodels());
-            bpns.addAll(itemGraph.getBpns());
+            bpns.addAll(itemGraph.getBpns().stream().filter(bpn -> StringUtils.isNotBlank(bpn.getManufacturerName())).toList());
         });
 
         log.info("Assembled item graph from {} partial graphs", numberOfPartialTrees);
diff --git a/irs-api/src/test/java/org/eclipse/tractusx/irs/IrsFunctionalTest.java b/irs-api/src/test/java/org/eclipse/tractusx/irs/IrsFunctionalTest.java
index 3c81db74c0..0f14d346da 100644
--- a/irs-api/src/test/java/org/eclipse/tractusx/irs/IrsFunctionalTest.java
+++ b/irs-api/src/test/java/org/eclipse/tractusx/irs/IrsFunctionalTest.java
@@ -117,7 +117,7 @@ void shouldStartJobAndRetrieveResult() {
         assertThat(finishedJob.get().getShells()).isNotEmpty();
         assertThat(finishedJob.get().getTombstones()).isEmpty();
         assertThat(finishedJob.get().getSubmodels()).isEmpty();
-        assertThat(finishedJob.get().getBpns()).isNotEmpty();
+        assertThat(finishedJob.get().getBpns()).isEmpty();
         assertThat(finishedJob.get().getJob()).isNotNull();
         assertThat(finishedJob.get().getJob().getSummary()).isNotNull();
         assertThat(finishedJob.get().getJob().getParameter()).isNotNull();