diff --git a/packages/google-cloud-storage/google/cloud/storage/blob.py b/packages/google-cloud-storage/google/cloud/storage/blob.py
index 87493a30dfc0..4742731db393 100644
--- a/packages/google-cloud-storage/google/cloud/storage/blob.py
+++ b/packages/google-cloud-storage/google/cloud/storage/blob.py
@@ -191,9 +191,12 @@ class Blob(_PropertyMixin):
 
     STORAGE_CLASSES = (
         STANDARD_STORAGE_CLASS,
+        "STANDARD_ENTERPRISE",
+        "STANDARD_FLEXBACKUP_ENTERPRISE",
         NEARLINE_STORAGE_CLASS,
         COLDLINE_STORAGE_CLASS,
         ARCHIVE_STORAGE_CLASS,
+        "LR_STANDARD_ENTERPRISE",
         MULTI_REGIONAL_LEGACY_STORAGE_CLASS,
         REGIONAL_LEGACY_STORAGE_CLASS,
     )
diff --git a/packages/google-cloud-storage/google/cloud/storage/bucket.py b/packages/google-cloud-storage/google/cloud/storage/bucket.py
index 7954e70e08f9..9de8f6fbadbf 100644
--- a/packages/google-cloud-storage/google/cloud/storage/bucket.py
+++ b/packages/google-cloud-storage/google/cloud/storage/bucket.py
@@ -650,9 +650,12 @@ class Bucket(_PropertyMixin):
 
     STORAGE_CLASSES = (
         STANDARD_STORAGE_CLASS,
+        "STANDARD_ENTERPRISE",
+        "STANDARD_FLEXBACKUP_ENTERPRISE",
         NEARLINE_STORAGE_CLASS,
         COLDLINE_STORAGE_CLASS,
         ARCHIVE_STORAGE_CLASS,
+        "LR_STANDARD_ENTERPRISE",
         MULTI_REGIONAL_LEGACY_STORAGE_CLASS,  # legacy
         REGIONAL_LEGACY_STORAGE_CLASS,  # legacy
         DURABLE_REDUCED_AVAILABILITY_LEGACY_STORAGE_CLASS,  # legacy
diff --git a/packages/google-cloud-storage/tests/system/test_blob.py b/packages/google-cloud-storage/tests/system/test_blob.py
index e3b558f5b606..4be7b54b138e 100644
--- a/packages/google-cloud-storage/tests/system/test_blob.py
+++ b/packages/google-cloud-storage/tests/system/test_blob.py
@@ -1212,6 +1212,33 @@ def test_blob_update_storage_class_large_file(
     assert blob.storage_class == constants.COLDLINE_STORAGE_CLASS
 
 
+def test_blob_update_storage_class_enterprise(
+    storage_client, buckets_to_delete, blobs_to_delete, file_data
+):
+    bucket_name = _helpers.unique_name("blob-ent-sc")
+    bucket = storage_client.bucket(bucket_name)
+    bucket.storage_class = "STANDARD_ENTERPRISE"
+
+    _helpers.retry_429_503(bucket.create)(location="us-central1")
+    buckets_to_delete.append(bucket)
+
+    blob = bucket.blob("EnterpriseSmallFile")
+    assert "STANDARD_ENTERPRISE" in blob.STORAGE_CLASSES
+    assert "LR_STANDARD_ENTERPRISE" in blob.STORAGE_CLASSES
+    info = file_data["simple"]
+    blob.upload_from_filename(info["path"])
+    blobs_to_delete.append(blob)
+    assert blob.storage_class == "STANDARD_ENTERPRISE"
+
+    blob.update_storage_class("LR_STANDARD_ENTERPRISE")
+    blob.reload()
+    assert blob.storage_class == "LR_STANDARD_ENTERPRISE"
+
+    blob.update_storage_class("STANDARD_ENTERPRISE")
+    blob.reload()
+    assert blob.storage_class == "STANDARD_ENTERPRISE"
+
+
 def test_object_retention_lock(storage_client, buckets_to_delete, blobs_to_delete):
     from google.cloud.storage._helpers import _NOW, _UTC
 
diff --git a/packages/google-cloud-storage/tests/system/test_bucket.py b/packages/google-cloud-storage/tests/system/test_bucket.py
index ae194fe46793..e1a04dd3476d 100644
--- a/packages/google-cloud-storage/tests/system/test_bucket.py
+++ b/packages/google-cloud-storage/tests/system/test_bucket.py
@@ -49,6 +49,33 @@ def test_bucket_create_w_alt_storage_class(storage_client, buckets_to_delete):
     assert created.storage_class == constants.ARCHIVE_STORAGE_CLASS
 
 
+@pytest.mark.parametrize(
+    "storage_class,suffix,location",
+    [
+        ("STANDARD_ENTERPRISE", "std-ent", "us-central1"),
+        ("LR_STANDARD_ENTERPRISE", "lr-std-ent", "us-central1"),
+        ("STANDARD_FLEXBACKUP_ENTERPRISE", "fb-ent", "us"),
+    ],
+)
+def test_bucket_create_w_enterprise_storage_class(
+    storage_client, buckets_to_delete, storage_class, suffix, location
+):
+    bucket_name = _helpers.unique_name(f"bucket-w-{suffix}")
+
+    with pytest.raises(exceptions.NotFound):
+        storage_client.get_bucket(bucket_name)
+
+    bucket = storage_client.bucket(bucket_name)
+    assert storage_class in bucket.STORAGE_CLASSES
+    bucket.storage_class = storage_class
+
+    _helpers.retry_429_503(bucket.create)(location=location)
+    buckets_to_delete.append(bucket)
+
+    created = storage_client.get_bucket(bucket_name)
+    assert created.storage_class == storage_class
+
+
 def test_bucket_lifecycle_rules(storage_client, buckets_to_delete):
     from google.cloud.storage import constants
     from google.cloud.storage.bucket import (
diff --git a/packages/google-cloud-storage/tests/unit/test_blob.py b/packages/google-cloud-storage/tests/unit/test_blob.py
index c5609e3dd5c6..b4fa0e1808c0 100644
--- a/packages/google-cloud-storage/tests/unit/test_blob.py
+++ b/packages/google-cloud-storage/tests/unit/test_blob.py
@@ -6788,6 +6788,25 @@ def test_w_existing_qs(self):
         self.assertEqual(self._call_fut(BASE_URL, NV_LIST), f"{BASE_URL}&{expected}")
 
 
+@pytest.mark.parametrize(
+    "storage_class",
+    [
+        "STANDARD_ENTERPRISE",
+        "STANDARD_FLEXBACKUP_ENTERPRISE",
+        "LR_STANDARD_ENTERPRISE",
+    ],
+)
+def test_blob_storage_class_enterprise_tuples(storage_class):
+    from google.cloud.storage.blob import Blob
+
+    bucket = _Bucket()
+    blob = Blob("blob-name", bucket=bucket)
+    assert storage_class in blob.STORAGE_CLASSES
+    blob.storage_class = storage_class
+    assert blob.storage_class == storage_class
+    assert blob._properties == {"storageClass": storage_class}
+
+
 class _Connection(object):
     API_BASE_URL = "http://example.com"
     USER_AGENT = "testing 1.2.3"
diff --git a/packages/google-cloud-storage/tests/unit/test_bucket.py b/packages/google-cloud-storage/tests/unit/test_bucket.py
index 19b3456b816e..7546d2e52e09 100644
--- a/packages/google-cloud-storage/tests/unit/test_bucket.py
+++ b/packages/google-cloud-storage/tests/unit/test_bucket.py
@@ -3279,6 +3279,30 @@ def test_storage_class_setter_STANDARD(self):
         self.assertEqual(bucket.storage_class, STANDARD_STORAGE_CLASS)
         self.assertTrue("storageClass" in bucket._changes)
 
+    def test_storage_class_setter_STANDARD_ENTERPRISE(self):
+        NAME = "name"
+        bucket = self._make_one(name=NAME)
+        self.assertIn("STANDARD_ENTERPRISE", bucket.STORAGE_CLASSES)
+        bucket.storage_class = "STANDARD_ENTERPRISE"
+        self.assertEqual(bucket.storage_class, "STANDARD_ENTERPRISE")
+        self.assertTrue("storageClass" in bucket._changes)
+
+    def test_storage_class_setter_STANDARD_FLEXBACKUP_ENTERPRISE(self):
+        NAME = "name"
+        bucket = self._make_one(name=NAME)
+        self.assertIn("STANDARD_FLEXBACKUP_ENTERPRISE", bucket.STORAGE_CLASSES)
+        bucket.storage_class = "STANDARD_FLEXBACKUP_ENTERPRISE"
+        self.assertEqual(bucket.storage_class, "STANDARD_FLEXBACKUP_ENTERPRISE")
+        self.assertTrue("storageClass" in bucket._changes)
+
+    def test_storage_class_setter_LR_STANDARD_ENTERPRISE(self):
+        NAME = "name"
+        bucket = self._make_one(name=NAME)
+        self.assertIn("LR_STANDARD_ENTERPRISE", bucket.STORAGE_CLASSES)
+        bucket.storage_class = "LR_STANDARD_ENTERPRISE"
+        self.assertEqual(bucket.storage_class, "LR_STANDARD_ENTERPRISE")
+        self.assertTrue("storageClass" in bucket._changes)
+
     def test_storage_class_setter_NEARLINE(self):
         from google.cloud.storage.constants import NEARLINE_STORAGE_CLASS