diff --git a/CODEOWNERS b/CODEOWNERS
index 40e37ec4697..46ffd1196f7 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -306,7 +306,7 @@ homeassistant/components/tplink/* @rytilahti
 homeassistant/components/traccar/* @ludeeus
 homeassistant/components/tradfri/* @ggravlingen
 homeassistant/components/trafikverket_train/* @endor-force
-homeassistant/components/transmission/* @engrbm87
+homeassistant/components/transmission/* @engrbm87 @JPHutchins
 homeassistant/components/tts/* @robbiet480
 homeassistant/components/twentemilieu/* @frenck
 homeassistant/components/twilio_call/* @robbiet480
diff --git a/homeassistant/components/transmission/__init__.py b/homeassistant/components/transmission/__init__.py
index 6cfd6bf640a..be41ca85998 100644
--- a/homeassistant/components/transmission/__init__.py
+++ b/homeassistant/components/transmission/__init__.py
@@ -232,6 +232,7 @@ class TransmissionData:
         self._api = api
         self.completed_torrents = []
         self.started_torrents = []
+        self.started_torrent_dict = {}
 
     @property
     def host(self):
@@ -250,6 +251,7 @@ class TransmissionData:
             self.torrents = self._api.get_torrents()
             self.session = self._api.get_session()
 
+            self.check_started_torrent_info()
             self.check_completed_torrent()
             self.check_started_torrent()
             _LOGGER.debug("Torrent Data for %s Updated", self.host)
@@ -301,6 +303,31 @@ class TransmissionData:
             self.hass.bus.fire("transmission_started_torrent", {"name": var})
         self.started_torrents = actual_started_torrents
 
+    def check_started_torrent_info(self):
+        """Get started torrent info functionality."""
+        all_torrents = self._api.get_torrents()
+        current_down = {}
+
+        for torrent in all_torrents:
+            if torrent.status == "downloading":
+                info = self.started_torrent_dict[torrent.name] = {
+                    "added_date": torrent.addedDate,
+                    "percent_done": f"{torrent.percentDone * 100:.2f}",
+                }
+                try:
+                    info["eta"] = str(torrent.eta)
+                except ValueError:
+                    info["eta"] = "unknown"
+
+                current_down[torrent.name] = True
+
+            elif torrent.name in self.started_torrent_dict:
+                self.started_torrent_dict.pop(torrent.name)
+
+        for torrent in list(self.started_torrent_dict):
+            if torrent not in current_down:
+                self.started_torrent_dict.pop(torrent)
+
     def get_started_torrent_count(self):
         """Get the number of started torrents."""
         return len(self.started_torrents)
diff --git a/homeassistant/components/transmission/const.py b/homeassistant/components/transmission/const.py
index 472bb32a391..5540f718ba1 100644
--- a/homeassistant/components/transmission/const.py
+++ b/homeassistant/components/transmission/const.py
@@ -17,6 +17,7 @@ DEFAULT_NAME = "Transmission"
 DEFAULT_PORT = 9091
 DEFAULT_SCAN_INTERVAL = 120
 
+STATE_ATTR_TORRENT_INFO = "torrent_info"
 ATTR_TORRENT = "torrent"
 SERVICE_ADD_TORRENT = "add_torrent"
 
diff --git a/homeassistant/components/transmission/manifest.json b/homeassistant/components/transmission/manifest.json
index c2fa31d7b50..9618a5677ad 100644
--- a/homeassistant/components/transmission/manifest.json
+++ b/homeassistant/components/transmission/manifest.json
@@ -8,6 +8,7 @@
   ],
   "dependencies": [],
   "codeowners": [
-    "@engrbm87"
+    "@engrbm87",
+    "@JPHutchins"
   ]
-}
\ No newline at end of file
+}
diff --git a/homeassistant/components/transmission/sensor.py b/homeassistant/components/transmission/sensor.py
index d9fd2b51144..489582de157 100644
--- a/homeassistant/components/transmission/sensor.py
+++ b/homeassistant/components/transmission/sensor.py
@@ -6,7 +6,8 @@ from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
-from .const import DOMAIN, SENSOR_TYPES
+from .const import DOMAIN, SENSOR_TYPES, STATE_ATTR_TORRENT_INFO
+
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -82,6 +83,13 @@ class TransmissionSensor(Entity):
         """Could the device be accessed during the last update call."""
         return self._tm_client.api.available
 
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes, if any."""
+        if self._tm_client.api.started_torrent_dict and self.type == "started_torrents":
+            return {STATE_ATTR_TORRENT_INFO: self._tm_client.api.started_torrent_dict}
+        return None
+
     async def async_added_to_hass(self):
         """Handle entity which will be added."""
         async_dispatcher_connect(