diff --git a/homeassistant/components/lunatone/__init__.py b/homeassistant/components/lunatone/__init__.py
index 90060e5c6ec..2e280168a86 100644
--- a/homeassistant/components/lunatone/__init__.py
+++ b/homeassistant/components/lunatone/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.exceptions import ConfigEntryError
 from homeassistant.helpers import device_registry as dr
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-from .const import DOMAIN
+from .const import DOMAIN, MANUFACTURER
 from .coordinator import (
     LunatoneConfigEntry,
     LunatoneData,
@@ -40,7 +40,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: LunatoneConfigEntry) ->
         config_entry_id=entry.entry_id,
         identifiers={(DOMAIN, str(info_api.serial_number))},
         name=info_api.name,
-        manufacturer="Lunatone",
+        manufacturer=MANUFACTURER,
         sw_version=info_api.version,
         hw_version=coordinator_info.data.device.pcb,
         configuration_url=entry.data[CONF_URL],
diff --git a/homeassistant/components/lunatone/const.py b/homeassistant/components/lunatone/const.py
index ad7eb57affa..7a8066b1969 100644
--- a/homeassistant/components/lunatone/const.py
+++ b/homeassistant/components/lunatone/const.py
@@ -3,3 +3,4 @@
 from typing import Final
 
 DOMAIN: Final = "lunatone"
+MANUFACTURER: Final = "Lunatone Industrielle Elektronik GmbH"
diff --git a/tests/components/lunatone/test_init.py b/tests/components/lunatone/test_init.py
index e0932e47792..be57b5802ee 100644
--- a/tests/components/lunatone/test_init.py
+++ b/tests/components/lunatone/test_init.py
@@ -4,7 +4,7 @@ from unittest.mock import AsyncMock
 
 import aiohttp
 
-from homeassistant.components.lunatone.const import DOMAIN
+from homeassistant.components.lunatone.const import DOMAIN, MANUFACTURER
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr
@@ -31,7 +31,7 @@ async def test_load_unload_config_entry(
         identifiers={(DOMAIN, mock_config_entry.unique_id)}
     )
     assert device_entry is not None
-    assert device_entry.manufacturer == "Lunatone"
+    assert device_entry.manufacturer == MANUFACTURER
     assert device_entry.sw_version == VERSION
     assert device_entry.configuration_url == BASE_URL
     assert device_entry.model == PRODUCT_NAME