diff --git a/samples/subsys/ipc/ipc_service/icmsg/CMakeLists.txt b/samples/subsys/ipc/ipc_service/icmsg/CMakeLists.txt
index 7fdf33f9621..70141d2f0e0 100644
--- a/samples/subsys/ipc/ipc_service/icmsg/CMakeLists.txt
+++ b/samples/subsys/ipc/ipc_service/icmsg/CMakeLists.txt
@@ -11,7 +11,9 @@ find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 if(NOT CONFIG_BOARD_NRF5340DK_NRF5340_CPUAPP AND
     NOT CONFIG_BOARD_NRF5340BSIM_NRF5340_CPUAPP AND
     NOT CONFIG_BOARD_STM32H747I_DISCO AND
-    NOT CONFIG_BOARD_NRF54L15DK_NRF54L15_CPUAPP)
+    NOT CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUAPP AND
+    NOT CONFIG_BOARD_NRF54L15DK_NRF54L15_CPUAPP AND
+    NOT CONFIG_BOARD_NRF54LM20DK_NRF54LM20A_CPUAPP)
   message(FATAL_ERROR "${BOARD} is not supported for this sample")
 endif()
 
diff --git a/samples/subsys/ipc/ipc_service/icmsg/Kconfig.sysbuild b/samples/subsys/ipc/ipc_service/icmsg/Kconfig.sysbuild
index 8ef1b70793b..f90397d2330 100644
--- a/samples/subsys/ipc/ipc_service/icmsg/Kconfig.sysbuild
+++ b/samples/subsys/ipc/ipc_service/icmsg/Kconfig.sysbuild
@@ -5,8 +5,10 @@
 source "share/sysbuild/Kconfig"
 
 config REMOTE_BOARD
-string
+	string "The board used for remote target"
 	default "nrf5340dk/nrf5340/cpunet" if $(BOARD) = "nrf5340dk"
 	default "nrf5340bsim/nrf5340/cpunet" if $(BOARD) = "nrf5340bsim"
+	default "nrf54h20dk/nrf54h20/cpuppr" if BOARD_NRF54H20DK_NRF54H20_CPUAPP
 	default "nrf54l15dk/nrf54l15/cpuflpr" if $(BOARD) = "nrf54l15dk"
+	default "nrf54lm20dk/nrf54lm20a/cpuflpr" if $(BOARD) = "nrf54lm20dk"
 	default "stm32h747i_disco/stm32h747xx/m4" if $(BOARD) = "stm32h747i_disco"
diff --git a/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54h20dk_nrf54h20_cpuapp.overlay b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54h20dk_nrf54h20_cpuapp.overlay
new file mode 100644
index 00000000000..422711c24a8
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54h20dk_nrf54h20_cpuapp.overlay
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Replace default ipc0 instance */
+/delete-node/ &ipc0;
+
+ipc0: &cpuapp_cpuppr_ipc {
+	status = "okay";
+};
+
+&cpuppr_vevif {
+	status = "okay";
+};
+
+&cpuapp_bellboard {
+	status = "okay";
+};
+
+/ {
+	chosen {
+		/delete-property/ zephyr,bt-hci;
+	};
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay
new file mode 100644
index 00000000000..33afb300d78
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp.overlay
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	soc {
+		reserved-memory {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			sram_rx: memory@20057c00 {
+				reg = <0x20057c00 0x8000>;
+			};
+
+			sram_tx: memory@2005fc00 {
+				reg = <0x2005fc00 0x8000>;
+			};
+		};
+	};
+
+	ipc {
+		ipc0: ipc0 {
+			compatible = "zephyr,ipc-icmsg";
+			dcache-alignment = <32>;
+			tx-region = <&sram_tx>;
+			rx-region = <&sram_rx>;
+			mboxes = <&cpuapp_vevif_rx 20>, <&cpuapp_vevif_tx 21>;
+			mbox-names = "rx", "tx";
+			status = "okay";
+		};
+	};
+};
+
+&cpuapp_vevif_rx {
+	status = "okay";
+};
+
+&cpuapp_vevif_tx {
+	status = "okay";
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp_icbmsg.overlay b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp_icbmsg.overlay
new file mode 100644
index 00000000000..c2f345bfcb2
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/boards/nrf54lm20dk_nrf54lm20a_cpuapp_icbmsg.overlay
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	soc {
+		reserved-memory {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			sram_rx: memory@20057c00 {
+				reg = <0x20057c00 0x8000>;
+			};
+
+			sram_tx: memory@2005fc00 {
+				reg = <0x2005fc00 0x8000>;
+			};
+		};
+	};
+
+	ipc {
+		ipc0: ipc0 {
+			compatible = "zephyr,ipc-icbmsg";
+			dcache-alignment = <32>;
+			tx-region = <&sram_tx>;
+			rx-region = <&sram_rx>;
+			tx-blocks = <16>;
+			rx-blocks = <18>;
+			mboxes = <&cpuapp_vevif_rx 20>, <&cpuapp_vevif_tx 21>;
+			mbox-names = "rx", "tx";
+			status = "okay";
+		};
+	};
+};
+
+&cpuapp_vevif_rx {
+	status = "okay";
+};
+
+&cpuapp_vevif_tx {
+	status = "okay";
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.conf b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.conf
new file mode 100644
index 00000000000..3c17c5e7e70
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.conf
@@ -0,0 +1,17 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+################################################################################
+
+CONFIG_LOG=y
+CONFIG_LOG_MODE_MINIMAL=y
+CONFIG_ASSERT=n
+CONFIG_LOG_BACKEND_UART=n
+
+CONFIG_BOOT_BANNER=n
+CONFIG_EARLY_CONSOLE=y
+CONFIG_HEAP_MEM_POOL_SIZE=1024
+
+CONFIG_SIZE_OPTIMIZATIONS=y
diff --git a/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay
new file mode 100644
index 00000000000..cf5c3cbc2e4
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54h20dk_nrf54h20_cpuppr.overlay
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+ipc0: &cpuapp_cpuppr_ipc {
+	status = "okay";
+};
+
+&cpuppr_vevif {
+	status = "okay";
+};
+
+&cpuapp_bellboard {
+	status = "okay";
+};
+
+&uart135 {
+	/delete-property/ hw-flow-control;
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr.overlay b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr.overlay
new file mode 100644
index 00000000000..7aa2e5fa557
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr.overlay
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	soc {
+		reserved-memory {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			sram_tx: memory@20057c00 {
+				reg = <0x20057c00 0x8000>;
+			};
+
+			sram_rx: memory@2005fc00 {
+				reg = <0x2005fc00 0x8000>;
+			};
+		};
+	};
+
+	ipc {
+		ipc0: ipc0 {
+			compatible = "zephyr,ipc-icmsg";
+			dcache-alignment = <32>;
+			tx-region = <&sram_tx>;
+			rx-region = <&sram_rx>;
+			mboxes = <&cpuflpr_vevif_rx 21>, <&cpuflpr_vevif_tx 20>;
+			mbox-names = "rx", "tx";
+			status = "okay";
+		};
+	};
+};
+
+&cpuflpr_vevif_rx {
+	status = "okay";
+};
+
+&cpuflpr_vevif_tx {
+	status = "okay";
+};
+
+&uart30 {
+	/delete-property/ hw-flow-control;
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr_icbmsg.overlay b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr_icbmsg.overlay
new file mode 100644
index 00000000000..3c79d1ae9d6
--- /dev/null
+++ b/samples/subsys/ipc/ipc_service/icmsg/remote/boards/nrf54lm20dk_nrf54lm20a_cpuflpr_icbmsg.overlay
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	soc {
+		reserved-memory {
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			sram_tx: memory@20057c00 {
+				reg = <0x20057c00 0x8000>;
+			};
+
+			sram_rx: memory@2005fc00 {
+				reg = <0x2005fc00 0x8000>;
+			};
+		};
+	};
+
+	ipc {
+		ipc0: ipc0 {
+			compatible = "zephyr,ipc-icbmsg";
+			dcache-alignment = <32>;
+			tx-region = <&sram_tx>;
+			rx-region = <&sram_rx>;
+			tx-blocks = <18>;
+			rx-blocks = <16>;
+			mboxes = <&cpuflpr_vevif_rx 21>, <&cpuflpr_vevif_tx 20>;
+			mbox-names = "rx", "tx";
+			status = "okay";
+		};
+	};
+};
+
+&cpuflpr_vevif_rx {
+	status = "okay";
+};
+
+&cpuflpr_vevif_tx {
+	status = "okay";
+};
+
+&uart30 {
+	/delete-property/ hw-flow-control;
+};
diff --git a/samples/subsys/ipc/ipc_service/icmsg/sample.yaml b/samples/subsys/ipc/ipc_service/icmsg/sample.yaml
index fae6b067b39..aecee8a1076 100644
--- a/samples/subsys/ipc/ipc_service/icmsg/sample.yaml
+++ b/samples/subsys/ipc/ipc_service/icmsg/sample.yaml
@@ -2,6 +2,8 @@ sample:
   name: IPC Service example integration (icmsg backend)
 common:
   timeout: 30
+  tags: ipc
+  sysbuild: true
 tests:
   sample.ipc.icmsg:
     platform_allow:
@@ -10,8 +12,6 @@ tests:
     integration_platforms:
       - nrf5340dk/nrf5340/cpuapp
       - nrf5340bsim/nrf5340/cpuapp
-    tags: ipc
-    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
@@ -24,13 +24,15 @@ tests:
         - "host: Received"
         - "host: IPC-service HOST demo ended"
 
-  sample.ipc.icmsg.nrf54l15:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icmsg.nrf54l:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
-    extra_args: icmsg_SNIPPET=nordic-flpr
-    sysbuild: true
+      - nrf54lm20dk/nrf54lm20a/cpuapp
+    extra_args:
+      - icmsg_SNIPPET=nordic-flpr
     harness: console
     harness_config:
       type: multi_line
@@ -43,18 +45,19 @@ tests:
         - "host: Received"
         - "host: IPC-service HOST demo ended"
 
-  sample.ipc.icmsg.nrf54l15_no_multithreading:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icmsg.nrf54l_no_multithreading:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     extra_args:
       - icmsg_SNIPPET=nordic-flpr
       - icmsg_CONFIG_MULTITHREADING=n
       - icmsg_CONFIG_LOG_MODE_MINIMAL=y
       - remote_CONFIG_MULTITHREADING=n
       - remote_CONFIG_LOG_MODE_MINIMAL=y
-    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
@@ -67,16 +70,17 @@ tests:
         - "I: Received"
         - "I: IPC-service HOST demo ended"
 
-  sample.ipc.icmsg.nrf54l15_remote_no_multithreading:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icmsg.nrf54l_remote_no_multithreading:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     extra_args:
       - icmsg_SNIPPET=nordic-flpr
       - remote_CONFIG_MULTITHREADING=n
       - remote_CONFIG_LOG_MODE_MINIMAL=y
-    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
@@ -89,18 +93,59 @@ tests:
         - "host: Received"
         - "host: IPC-service HOST demo ended"
 
-  sample.ipc.icbmsg.nrf54l15:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icmsg.nrf54h20:
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - icmsg_SNIPPET=nordic-ppr
+    harness: console
+    harness_config:
+      type: multi_line
+      ordered: false
+      regex:
+        - "host: IPC-service HOST demo started"
+        - "host: Ep bounded"
+        - "host: Perform sends for"
+        - "host: Sent"
+        - "host: Received"
+        - "host: IPC-service HOST demo ended"
+
+  sample.ipc.icmsg.nrf54h20_remote_no_multithreading:
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - icmsg_SNIPPET=nordic-ppr
+      - remote_CONFIG_MULTITHREADING=n
+      - remote_CONFIG_LOG_MODE_MINIMAL=y
+    harness: console
+    harness_config:
+      type: multi_line
+      ordered: false
+      regex:
+        - "host: IPC-service HOST demo started"
+        - "host: Ep bounded"
+        - "host: Perform sends for"
+        - "host: Sent"
+        - "host: Received"
+        - "host: IPC-service HOST demo ended"
+
+  sample.ipc.icbmsg.nrf54l:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     extra_args:
       - icmsg_SNIPPET=nordic-flpr
       - icmsg_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - icmsg_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_icbmsg.overlay"
+      - icmsg_FILE_SUFFIX=icbmsg
       - remote_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - remote_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuflpr_icbmsg.overlay"
-    sysbuild: true
+      - remote_FILE_SUFFIX=icbmsg
     harness: console
     harness_config:
       type: multi_line
@@ -113,22 +158,23 @@ tests:
         - "host: Received"
         - "host: IPC-service HOST demo ended"
 
-  sample.ipc.icbmsg.nrf54l15_no_multithreading:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icbmsg.nrf54l_no_multithreading:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     extra_args:
       - icmsg_SNIPPET=nordic-flpr
       - icmsg_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - icmsg_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_icbmsg.overlay"
+      - icmsg_FILE_SUFFIX=icbmsg
       - icmsg_CONFIG_MULTITHREADING=n
       - icmsg_CONFIG_LOG_MODE_MINIMAL=y
       - remote_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - remote_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuflpr_icbmsg.overlay"
+      - remote_FILE_SUFFIX=icbmsg
       - remote_CONFIG_MULTITHREADING=n
       - remote_CONFIG_LOG_MODE_MINIMAL=y
-    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
@@ -141,20 +187,21 @@ tests:
         - "I: Received"
         - "I: IPC-service HOST demo ended"
 
-  sample.ipc.icbmsg.nrf54l15_remote_no_multithreading:
-    platform_allow: nrf54l15dk/nrf54l15/cpuapp
+  sample.ipc.icbmsg.nrf54l_remote_no_multithreading:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
-    tags: ipc
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     extra_args:
       - icmsg_SNIPPET=nordic-flpr
       - icmsg_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - icmsg_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_icbmsg.overlay"
+      - icmsg_FILE_SUFFIX=icbmsg
       - remote_CONFIG_IPC_SERVICE_BACKEND_ICBMSG_NUM_EP=1
-      - remote_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuflpr_icbmsg.overlay"
+      - remote_FILE_SUFFIX=icbmsg
       - remote_CONFIG_MULTITHREADING=n
       - remote_CONFIG_LOG_MODE_MINIMAL=y
-    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
diff --git a/samples/subsys/ipc/ipc_service/icmsg/sysbuild.cmake b/samples/subsys/ipc/ipc_service/icmsg/sysbuild.cmake
index 305c85cc3eb..98d21e30833 100644
--- a/samples/subsys/ipc/ipc_service/icmsg/sysbuild.cmake
+++ b/samples/subsys/ipc/ipc_service/icmsg/sysbuild.cmake
@@ -11,6 +11,7 @@ ExternalZephyrProject_Add(
 	APPLICATION remote
 	SOURCE_DIR  ${APP_DIR}/remote
 	BOARD       ${SB_CONFIG_REMOTE_BOARD}
+	BOARD_REVISION ${BOARD_REVISION}
 )
 
 native_simulator_set_child_images(${DEFAULT_IMAGE} remote)