diff --git a/homeassistant/components/tankerkoenig/sensor.py b/homeassistant/components/tankerkoenig/sensor.py
index c63b0ea0e7e..e3b2ca9554b 100644
--- a/homeassistant/components/tankerkoenig/sensor.py
+++ b/homeassistant/components/tankerkoenig/sensor.py
@@ -5,12 +5,7 @@ import logging
 
 from homeassistant.components.sensor import SensorEntity, SensorStateClass
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import (
-    ATTR_ATTRIBUTION,
-    ATTR_LATITUDE,
-    ATTR_LONGITUDE,
-    CURRENCY_EURO,
-)
+from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, CURRENCY_EURO
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
@@ -62,6 +57,7 @@ async def async_setup_entry(
 class FuelPriceSensor(TankerkoenigCoordinatorEntity, SensorEntity):
     """Contains prices for fuel in a given station."""
 
+    _attr_attribution = ATTRIBUTION
     _attr_state_class = SensorStateClass.MEASUREMENT
     _attr_icon = "mdi:gas-station"
 
@@ -74,7 +70,6 @@ class FuelPriceSensor(TankerkoenigCoordinatorEntity, SensorEntity):
         self._attr_native_unit_of_measurement = CURRENCY_EURO
         self._attr_unique_id = f"{station['id']}_{fuel_type}"
         attrs = {
-            ATTR_ATTRIBUTION: ATTRIBUTION,
             ATTR_BRAND: station["brand"],
             ATTR_FUEL_TYPE: fuel_type,
             ATTR_STATION_NAME: station["name"],
diff --git a/homeassistant/components/tmb/sensor.py b/homeassistant/components/tmb/sensor.py
index 8d6db00b2b9..cd9453ed430 100644
--- a/homeassistant/components/tmb/sensor.py
+++ b/homeassistant/components/tmb/sensor.py
@@ -9,7 +9,7 @@ from tmb import IBus
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME, TIME_MINUTES
+from homeassistant.const import CONF_NAME, TIME_MINUTES
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -18,8 +18,6 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-ATTRIBUTION = "Data provided by Transport Metropolitans de Barcelona"
-
 ICON = "mdi:bus-clock"
 
 CONF_APP_ID = "app_id"
@@ -75,6 +73,8 @@ def setup_platform(
 class TMBSensor(SensorEntity):
     """Implementation of a TMB line/stop Sensor."""
 
+    _attr_attribution = "Data provided by Transport Metropolitans de Barcelona"
+
     def __init__(self, ibus_client, stop, line, name):
         """Initialize the sensor."""
         self._ibus_client = ibus_client
@@ -113,7 +113,6 @@ class TMBSensor(SensorEntity):
     def extra_state_attributes(self):
         """Return the state attributes of the last update."""
         return {
-            ATTR_ATTRIBUTION: ATTRIBUTION,
             ATTR_BUS_STOP: self._stop,
             ATTR_LINE: self._line,
         }
diff --git a/homeassistant/components/tomorrowio/__init__.py b/homeassistant/components/tomorrowio/__init__.py
index 956b0901dd7..e2aaba6cdff 100644
--- a/homeassistant/components/tomorrowio/__init__.py
+++ b/homeassistant/components/tomorrowio/__init__.py
@@ -320,6 +320,8 @@ class TomorrowioDataUpdateCoordinator(DataUpdateCoordinator):
 class TomorrowioEntity(CoordinatorEntity[TomorrowioDataUpdateCoordinator]):
     """Base Tomorrow.io Entity."""
 
+    _attr_attribution = ATTRIBUTION
+
     def __init__(
         self,
         config_entry: ConfigEntry,
@@ -346,8 +348,3 @@ class TomorrowioEntity(CoordinatorEntity[TomorrowioDataUpdateCoordinator]):
         """
         entry_id = self._config_entry.entry_id
         return self.coordinator.data[entry_id].get(CURRENT, {}).get(property_name)
-
-    @property
-    def attribution(self):
-        """Return the attribution."""
-        return ATTRIBUTION
diff --git a/homeassistant/components/tomorrowio/sensor.py b/homeassistant/components/tomorrowio/sensor.py
index 1f3bb74b686..78c973fd80b 100644
--- a/homeassistant/components/tomorrowio/sensor.py
+++ b/homeassistant/components/tomorrowio/sensor.py
@@ -20,7 +20,6 @@ from homeassistant.components.sensor import (
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     CONCENTRATION_PARTS_PER_MILLION,
     CONF_API_KEY,
@@ -326,7 +325,6 @@ class BaseTomorrowioSensorEntity(TomorrowioEntity, SensorEntity):
         self._attr_unique_id = (
             f"{self._config_entry.unique_id}_{slugify(description.name)}"
         )
-        self._attr_extra_state_attributes = {ATTR_ATTRIBUTION: self.attribution}
         if self.entity_description.native_unit_of_measurement is None:
             self._attr_native_unit_of_measurement = description.unit_metric
             if hass.config.units is IMPERIAL_SYSTEM:
diff --git a/homeassistant/components/transport_nsw/sensor.py b/homeassistant/components/transport_nsw/sensor.py
index 27fd6fd67fd..116dd5c0923 100644
--- a/homeassistant/components/transport_nsw/sensor.py
+++ b/homeassistant/components/transport_nsw/sensor.py
@@ -7,13 +7,7 @@ from TransportNSW import TransportNSW
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import (
-    ATTR_ATTRIBUTION,
-    ATTR_MODE,
-    CONF_API_KEY,
-    CONF_NAME,
-    TIME_MINUTES,
-)
+from homeassistant.const import ATTR_MODE, CONF_API_KEY, CONF_NAME, TIME_MINUTES
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -26,8 +20,6 @@ ATTR_DELAY = "delay"
 ATTR_REAL_TIME = "real_time"
 ATTR_DESTINATION = "destination"
 
-ATTRIBUTION = "Data provided by Transport NSW"
-
 CONF_STOP_ID = "stop_id"
 CONF_ROUTE = "route"
 CONF_DESTINATION = "destination"
@@ -77,6 +69,8 @@ def setup_platform(
 class TransportNSWSensor(SensorEntity):
     """Implementation of an Transport NSW sensor."""
 
+    _attr_attribution = "Data provided by Transport NSW"
+
     def __init__(self, data, stop_id, name):
         """Initialize the sensor."""
         self.data = data
@@ -107,7 +101,6 @@ class TransportNSWSensor(SensorEntity):
                 ATTR_REAL_TIME: self._times[ATTR_REAL_TIME],
                 ATTR_DESTINATION: self._times[ATTR_DESTINATION],
                 ATTR_MODE: self._times[ATTR_MODE],
-                ATTR_ATTRIBUTION: ATTRIBUTION,
             }
 
     @property
diff --git a/homeassistant/components/travisci/sensor.py b/homeassistant/components/travisci/sensor.py
index c35391d4573..ab1cd4a6b03 100644
--- a/homeassistant/components/travisci/sensor.py
+++ b/homeassistant/components/travisci/sensor.py
@@ -15,7 +15,6 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
 )
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     CONF_API_KEY,
     CONF_MONITORED_CONDITIONS,
     CONF_SCAN_INTERVAL,
@@ -28,8 +27,6 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
-ATTRIBUTION = "Information provided by https://travis-ci.org/"
-
 CONF_BRANCH = "branch"
 CONF_REPOSITORY = "repository"
 
@@ -142,6 +139,8 @@ def setup_platform(
 class TravisCISensor(SensorEntity):
     """Representation of a Travis CI sensor."""
 
+    _attr_attribution = "Information provided by https://travis-ci.org/"
+
     def __init__(
         self, data, repo_name, user, branch, description: SensorEntityDescription
     ):
@@ -159,7 +158,6 @@ class TravisCISensor(SensorEntity):
     def extra_state_attributes(self):
         """Return the state attributes."""
         attrs = {}
-        attrs[ATTR_ATTRIBUTION] = ATTRIBUTION
 
         if self._build and self._attr_native_value is not None:
             if self._user and self.entity_description.key == "state":
diff --git a/homeassistant/components/vasttrafik/sensor.py b/homeassistant/components/vasttrafik/sensor.py
index d4229066eff..118d04d3c1b 100644
--- a/homeassistant/components/vasttrafik/sensor.py
+++ b/homeassistant/components/vasttrafik/sensor.py
@@ -8,7 +8,7 @@ import vasttrafik
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_DELAY, CONF_NAME
+from homeassistant.const import CONF_DELAY, CONF_NAME
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -22,7 +22,6 @@ ATTR_ACCESSIBILITY = "accessibility"
 ATTR_DIRECTION = "direction"
 ATTR_LINE = "line"
 ATTR_TRACK = "track"
-ATTRIBUTION = "Data provided by Västtrafik"
 
 CONF_DEPARTURES = "departures"
 CONF_FROM = "from"
@@ -83,6 +82,8 @@ def setup_platform(
 class VasttrafikDepartureSensor(SensorEntity):
     """Implementation of a Vasttrafik Departure Sensor."""
 
+    _attr_attribution = "Data provided by Västtrafik"
+
     def __init__(self, planner, name, departure, heading, lines, delay):
         """Initialize the sensor."""
         self._planner = planner
@@ -158,7 +159,6 @@ class VasttrafikDepartureSensor(SensorEntity):
 
                     params = {
                         ATTR_ACCESSIBILITY: departure.get("accessibility"),
-                        ATTR_ATTRIBUTION: ATTRIBUTION,
                         ATTR_DIRECTION: departure.get("direction"),
                         ATTR_LINE: departure.get("sname"),
                         ATTR_TRACK: departure.get("track"),
diff --git a/homeassistant/components/viaggiatreno/sensor.py b/homeassistant/components/viaggiatreno/sensor.py
index acb6ffa647e..bdc8909da0f 100644
--- a/homeassistant/components/viaggiatreno/sensor.py
+++ b/homeassistant/components/viaggiatreno/sensor.py
@@ -11,7 +11,7 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import ATTR_ATTRIBUTION, TIME_MINUTES
+from homeassistant.const import TIME_MINUTES
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
@@ -20,8 +20,6 @@ from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
 _LOGGER = logging.getLogger(__name__)
 
-ATTRIBUTION = "Powered by ViaggiaTreno Data"
-
 VIAGGIATRENO_ENDPOINT = (
     "http://www.viaggiatreno.it/infomobilita/"
     "resteasy/viaggiatreno/andamentoTreno/"
@@ -96,6 +94,8 @@ async def async_http_request(hass, uri):
 class ViaggiaTrenoSensor(SensorEntity):
     """Implementation of a ViaggiaTreno sensor."""
 
+    _attr_attribution = "Powered by ViaggiaTreno Data"
+
     def __init__(self, train_id, station_id, name):
         """Initialize the sensor."""
         self._state = None
@@ -132,7 +132,6 @@ class ViaggiaTrenoSensor(SensorEntity):
     @property
     def extra_state_attributes(self):
         """Return extra attributes."""
-        self._attributes[ATTR_ATTRIBUTION] = ATTRIBUTION
         return self._attributes
 
     @staticmethod
diff --git a/homeassistant/components/waze_travel_time/sensor.py b/homeassistant/components/waze_travel_time/sensor.py
index c4ff489cadf..67081aeab5f 100644
--- a/homeassistant/components/waze_travel_time/sensor.py
+++ b/homeassistant/components/waze_travel_time/sensor.py
@@ -13,7 +13,6 @@ from homeassistant.components.sensor import (
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     CONF_NAME,
     CONF_REGION,
     EVENT_HOMEASSISTANT_STARTED,
@@ -115,6 +114,7 @@ async def async_setup_entry(
 class WazeTravelTime(SensorEntity):
     """Representation of a Waze travel time sensor."""
 
+    _attr_attribution = "Powered by Waze"
     _attr_native_unit_of_measurement = TIME_MINUTES
     _attr_device_class = SensorDeviceClass.DURATION
     _attr_state_class = SensorStateClass.MEASUREMENT
@@ -159,7 +159,6 @@ class WazeTravelTime(SensorEntity):
             return None
 
         return {
-            ATTR_ATTRIBUTION: "Powered by Waze",
             "duration": self._waze_data.duration,
             "distance": self._waze_data.distance,
             "route": self._waze_data.route,
diff --git a/homeassistant/components/yandex_transport/sensor.py b/homeassistant/components/yandex_transport/sensor.py
index 3fdca47ef02..b7a846bbc67 100644
--- a/homeassistant/components/yandex_transport/sensor.py
+++ b/homeassistant/components/yandex_transport/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.sensor import (
     SensorDeviceClass,
     SensorEntity,
 )
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME
+from homeassistant.const import CONF_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
 import homeassistant.helpers.config_validation as cv
@@ -24,7 +24,6 @@ _LOGGER = logging.getLogger(__name__)
 
 STOP_NAME = "stop_name"
 USER_AGENT = "Home Assistant"
-ATTRIBUTION = "Data provided by maps.yandex.ru"
 
 CONF_STOP_ID = "stop_id"
 CONF_ROUTE = "routes"
@@ -70,6 +69,8 @@ async def async_setup_platform(
 class DiscoverYandexTransport(SensorEntity):
     """Implementation of yandex_transport sensor."""
 
+    _attr_attribution = "Data provided by maps.yandex.ru"
+
     def __init__(self, requester: YandexMapsRequester, stop_id, routes, name):
         """Initialize sensor."""
         self.requester = requester
@@ -138,7 +139,7 @@ class DiscoverYandexTransport(SensorEntity):
                         attrs[route] = []
                     attrs[route].append(departure["text"])
         attrs[STOP_NAME] = stop_name
-        attrs[ATTR_ATTRIBUTION] = ATTRIBUTION
+
         if closer_time is None:
             self._state = None
         else: