diff --git a/homeassistant/components/group/binary_sensor.py b/homeassistant/components/group/binary_sensor.py
index 9659974886d..a8bb6c79cf2 100644
--- a/homeassistant/components/group/binary_sensor.py
+++ b/homeassistant/components/group/binary_sensor.py
@@ -121,7 +121,7 @@ class BinarySensorGroup(GroupEntity, BinarySensorEntity):
         """Initialize a BinarySensorGroup entity."""
         super().__init__()
         self._target_config = target_config
-        self._domain = BINARY_SENSOR_DOMAIN
+        self._domains = [BINARY_SENSOR_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
         self._device_class = device_class
diff --git a/homeassistant/components/group/button.py b/homeassistant/components/group/button.py
index df4c4a8e528..348037a29bb 100644
--- a/homeassistant/components/group/button.py
+++ b/homeassistant/components/group/button.py
@@ -111,7 +111,7 @@ class ButtonGroup(GroupEntity, ButtonEntity):
         """Initialize a button group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = BUTTON_DOMAIN
+        self._domains = [BUTTON_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
 
diff --git a/homeassistant/components/group/cover.py b/homeassistant/components/group/cover.py
index bc73f068a05..21fc58bc1b9 100644
--- a/homeassistant/components/group/cover.py
+++ b/homeassistant/components/group/cover.py
@@ -119,7 +119,7 @@ class CoverGroup(GroupEntity, CoverEntity):
         """Initialize a CoverGroup entity."""
         super().__init__()
         self._target_config = target_config
-        self._domain = COVER_DOMAIN
+        self._domains = [COVER_DOMAIN]
         self._covers: dict[str, set[str]] = {
             KEY_OPEN_CLOSE: set(),
             KEY_STOP: set(),
diff --git a/homeassistant/components/group/entity.py b/homeassistant/components/group/entity.py
index 09400a04aa9..d63cd23baf0 100644
--- a/homeassistant/components/group/entity.py
+++ b/homeassistant/components/group/entity.py
@@ -50,7 +50,7 @@ class GroupEntity(Entity):
     _attr_should_poll = False
     _entity_ids: list[str]
     _target_config: dict[str, Any]
-    _domain: str
+    _domains: list[str]
 
     @callback
     def async_start_preview(
@@ -89,7 +89,7 @@ class GroupEntity(Entity):
         return {
             entity_id
             for entity_id in entity_ids
-            if split_entity_id(entity_id)[0] == self._domain
+            if split_entity_id(entity_id)[0] in self._domains
             and entity_id != self.entity_id
         }
 
diff --git a/homeassistant/components/group/event.py b/homeassistant/components/group/event.py
index bd63adcfbc3..be05479b0c9 100644
--- a/homeassistant/components/group/event.py
+++ b/homeassistant/components/group/event.py
@@ -119,7 +119,7 @@ class EventGroup(GroupEntity, EventEntity):
         """Initialize an event group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = EVENT_DOMAIN
+        self._domains = [EVENT_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
         self._attr_event_types = []
diff --git a/homeassistant/components/group/fan.py b/homeassistant/components/group/fan.py
index c83ec8952c8..ea723dc2abb 100644
--- a/homeassistant/components/group/fan.py
+++ b/homeassistant/components/group/fan.py
@@ -121,7 +121,7 @@ class FanGroup(GroupEntity, FanEntity):
         """Initialize a FanGroup entity."""
         super().__init__()
         self._target_config = target_config
-        self._domain = FAN_DOMAIN
+        self._domains = [FAN_DOMAIN]
         self._fans: dict[int, set[str]] = {flag: set() for flag in SUPPORTED_FLAGS}
         self._percentage = None
         self._oscillating = None
diff --git a/homeassistant/components/group/light.py b/homeassistant/components/group/light.py
index 69a138c78ed..ea8fdefa1a5 100644
--- a/homeassistant/components/group/light.py
+++ b/homeassistant/components/group/light.py
@@ -166,7 +166,7 @@ class LightGroup(GroupEntity, LightEntity):
         """Initialize a light group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = LIGHT_DOMAIN
+        self._domains = [LIGHT_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
         self.mode = any
diff --git a/homeassistant/components/group/lock.py b/homeassistant/components/group/lock.py
index 96e43bbc000..f4c7c6a6af9 100644
--- a/homeassistant/components/group/lock.py
+++ b/homeassistant/components/group/lock.py
@@ -114,7 +114,7 @@ class LockGroup(GroupEntity, LockEntity):
         """Initialize a lock group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = LOCK_DOMAIN
+        self._domains = [LOCK_DOMAIN]
         self.group = GenericGroup(self, target_config.get("entity_id", []))
         self._attr_supported_features = LockEntityFeature.OPEN
         self._attr_name = name
diff --git a/homeassistant/components/group/media_player.py b/homeassistant/components/group/media_player.py
index 87bca8f2b71..5ff07d5ca35 100644
--- a/homeassistant/components/group/media_player.py
+++ b/homeassistant/components/group/media_player.py
@@ -127,7 +127,7 @@ class MediaPlayerGroup(GroupEntity, MediaPlayerEntity):
         """Initialize a Media Group entity."""
         super().__init__()
         self._target_config = target_config
-        self._domain = MEDIA_PLAYER_DOMAIN
+        self._domains = [MEDIA_PLAYER_DOMAIN]
         self._name = name
         self._attr_unique_id = unique_id
         self._features: dict[str, set[str]] = {
diff --git a/homeassistant/components/group/notify.py b/homeassistant/components/group/notify.py
index 6f93c1887fd..47196c61276 100644
--- a/homeassistant/components/group/notify.py
+++ b/homeassistant/components/group/notify.py
@@ -166,7 +166,7 @@ class NotifyGroup(GroupEntity, NotifyEntity):
         """Initialize a NotifyGroup."""
         super().__init__()
         self._target_config = target_config
-        self._domain = NOTIFY_DOMAIN
+        self._domains = [NOTIFY_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
 
diff --git a/homeassistant/components/group/sensor.py b/homeassistant/components/group/sensor.py
index 90461fdf222..c65b43eab52 100644
--- a/homeassistant/components/group/sensor.py
+++ b/homeassistant/components/group/sensor.py
@@ -357,7 +357,7 @@ class SensorGroup(GroupEntity, SensorEntity):
         """Initialize a sensor group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = SENSOR_DOMAIN
+        self._domains = [SENSOR_DOMAIN, NUMBER_DOMAIN, INPUT_NUMBER_DOMAIN]
         self.hass = hass
         self._sensor_type = sensor_type
         self._configured_state_class = state_class
diff --git a/homeassistant/components/group/switch.py b/homeassistant/components/group/switch.py
index f509531a6b6..6960391ff86 100644
--- a/homeassistant/components/group/switch.py
+++ b/homeassistant/components/group/switch.py
@@ -123,7 +123,7 @@ class SwitchGroup(GroupEntity, SwitchEntity):
         """Initialize a switch group."""
         super().__init__()
         self._target_config = target_config
-        self._domain = SWITCH_DOMAIN
+        self._domains = [SWITCH_DOMAIN]
         self._attr_name = name
         self._attr_unique_id = unique_id
         self.mode = any
diff --git a/homeassistant/components/group/valve.py b/homeassistant/components/group/valve.py
index 9f01024123b..038ad193650 100644
--- a/homeassistant/components/group/valve.py
+++ b/homeassistant/components/group/valve.py
@@ -114,7 +114,7 @@ class ValveGroup(GroupEntity, ValveEntity):
         """Initialize a ValveGroup entity."""
         super().__init__()
         self._target_config = target_config
-        self._domain = VALVE_DOMAIN
+        self._domains = [VALVE_DOMAIN]
         self._valves: dict[str, set[str]] = {
             KEY_OPEN_CLOSE: set(),
             KEY_STOP: set(),