diff --git a/src/l2/participant/cl/input_parser.star b/src/l2/participant/cl/input_parser.star
index 6f47ba26..c4352ad1 100644
--- a/src/l2/participant/cl/input_parser.star
+++ b/src/l2/participant/cl/input_parser.star
@@ -65,6 +65,7 @@ def _parse(args, participant_name, network_id, registry, cl_kind):
     cl_params["labels"] = {
         "op.kind": cl_kind,
         "op.network.id": str(network_id),
+        "op.network.participant.name": participant_name,
         "op.cl.type": cl_params["type"],
     }
 
diff --git a/src/l2/participant/el/input_parser.star b/src/l2/participant/el/input_parser.star
index 94158184..1a23aaf9 100644
--- a/src/l2/participant/el/input_parser.star
+++ b/src/l2/participant/el/input_parser.star
@@ -69,6 +69,7 @@ def _parse(args, participant_name, network_id, registry, el_kind):
     el_params["labels"] = {
         "op.kind": el_kind,
         "op.network.id": str(network_id),
+        "op.network.participant.name": participant_name,
         "op.el.type": el_params["type"],
     }
 
diff --git a/test/l2/participant/cl/launcher_test.star b/test/l2/participant/cl/launcher_test.star
index 38090f18..4dd0a200 100644
--- a/test/l2/participant/cl/launcher_test.star
+++ b/test/l2/participant/cl/launcher_test.star
@@ -99,7 +99,12 @@ def test_l2_participant_cl_launcher_hildr(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "cl", "op.network.id": "2151908", "op.cl.type": "hildr"},
+        {
+            "op.kind": "cl",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.cl.type": "hildr",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -216,7 +221,12 @@ def test_l2_participant_cl_launcher_kona_node(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "cl", "op.network.id": "2151908", "op.cl.type": "kona-node"},
+        {
+            "op.kind": "cl",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.cl.type": "kona-node",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -317,7 +327,12 @@ def test_l2_participant_cl_launcher_op_node(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "cl", "op.network.id": "2151908", "op.cl.type": "op-node"},
+        {
+            "op.kind": "cl",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.cl.type": "op-node",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
diff --git a/test/l2/participant/el/launcher_test.star b/test/l2/participant/el/launcher_test.star
index 488cf825..81dd99fd 100644
--- a/test/l2/participant/el/launcher_test.star
+++ b/test/l2/participant/el/launcher_test.star
@@ -109,7 +109,12 @@ def test_l2_participant_el_launcher_op_besu(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "el", "op.network.id": "2151908", "op.el.type": "op-besu"},
+        {
+            "op.kind": "el",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.el.type": "op-besu",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -180,7 +185,12 @@ def test_l2_participant_el_launcher_op_erigon(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "el", "op.network.id": "2151908", "op.el.type": "op-erigon"},
+        {
+            "op.kind": "el",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.el.type": "op-erigon",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -251,7 +261,12 @@ def test_l2_participant_el_launcher_op_geth(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "el", "op.network.id": "2151908", "op.el.type": "op-geth"},
+        {
+            "op.kind": "el",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.el.type": "op-geth",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -341,7 +356,12 @@ def test_l2_participant_el_launcher_op_nethermind(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "el", "op.network.id": "2151908", "op.el.type": "op-nethermind"},
+        {
+            "op.kind": "el",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.el.type": "op-nethermind",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
@@ -412,7 +432,12 @@ def test_l2_participant_el_launcher_op_reth(plan):
     )
     expect.eq(
         service_config.labels,
-        {"op.kind": "el", "op.network.id": "2151908", "op.el.type": "op-reth"},
+        {
+            "op.kind": "el",
+            "op.network.id": "2151908",
+            "op.network.participant.name": "node0",
+            "op.el.type": "op-reth",
+        },
     )
     expect.eq(
         service_config.files["/network-configs"].artifact_names,
diff --git a/test/l2/participant/input_parser_test.star b/test/l2/participant/input_parser_test.star
index 1173784f..6dc2a8fb 100644
--- a/test/l2/participant/input_parser_test.star
+++ b/test/l2/participant/input_parser_test.star
@@ -72,6 +72,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "cl",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node0",
                         "op.cl.type": "op-node",
                     },
                     ports={
@@ -91,6 +92,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "cl_builder",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node0",
                         "op.cl.type": "op-node",
                     },
                     ports={
@@ -110,6 +112,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "el",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node0",
                         "op.el.type": "op-geth",
                     },
                     ports={
@@ -131,6 +134,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "el_builder",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node0",
                         "op.el.type": "op-geth",
                     },
                     ports={
@@ -173,6 +177,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "cl",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node1",
                         "op.cl.type": "op-node",
                     },
                     ports={
@@ -192,6 +197,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "cl_builder",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node1",
                         "op.cl.type": "op-node",
                     },
                     ports={
@@ -211,6 +217,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "el",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node1",
                         "op.el.type": "op-geth",
                     },
                     ports={
@@ -232,6 +239,7 @@ def test_l2_participant_input_parser_defaults(plan):
                     labels={
                         "op.kind": "el_builder",
                         "op.network.id": "1000",
+                        "op.network.participant.name": "node1",
                         "op.el.type": "op-geth",
                     },
                     ports={