diff --git a/670-gsakkis.md b/670-gsakkis.md
new file mode 100644
index 0000000..91ef628
--- /dev/null
+++ b/670-gsakkis.md
@@ -0,0 +1 @@
+Add benchmarks for `valideer`
diff --git a/benchmarks/requirements.txt b/benchmarks/requirements.txt
index 76530f7..fefc275 100644
--- a/benchmarks/requirements.txt
+++ b/benchmarks/requirements.txt
@@ -4,5 +4,6 @@ django               # pyup: ignore
 djangorestframework  # pyup: ignore
 #marshmallow          # pyup: ignore
 toastedmarshmallow   # pyup: ignore
+valideer             # pyup: ignore
 attr                 # pyup: ignore
 cattrs               # pyup: ignore
diff --git a/benchmarks/run.py b/benchmarks/run.py
index b36d211..1a0ae78 100644
--- a/benchmarks/run.py
+++ b/benchmarks/run.py
@@ -32,6 +32,10 @@ try:
     from test_toasted_marshmallow import TestToastedMarshmallow
 except Exception:
     TestToastedMarshmallow = None
+try:
+    from test_valideer import TestValideer
+except Exception:
+    TestValideer = None
 
 try:
     from test_cattr import TestCAttr
@@ -47,7 +51,7 @@ random = random.SystemRandom()
 # in order of performance for csv
 other_tests = [
     t for t in
-    [TestCAttr, TestToastedMarshmallow, TestMarshmallow, TestTrafaret, TestDRF]
+    [TestCAttr, TestValideer, TestToastedMarshmallow, TestMarshmallow, TestTrafaret, TestDRF]
     if t is not None
 ]
 
diff --git a/benchmarks/test_valideer.py b/benchmarks/test_valideer.py
new file mode 100644
index 0000000..353122a
--- /dev/null
+++ b/benchmarks/test_valideer.py
@@ -0,0 +1,47 @@
+import re
+import subprocess
+
+import dateutil.parser
+import valideer as V
+
+# valideer appears to provide no way of getting the installed version
+p = subprocess.run(['pip', 'freeze'], stdout=subprocess.PIPE, encoding='utf8', check=True)
+valideer_version = re.search(r'valideer==(.+)', p.stdout).group(1)
+
+
+class TestValideer:
+    package = 'valideer'
+    version = valideer_version
+
+    def __init__(self, allow_extra):
+        schema = {
+            '+id': int,
+            '+client_name': V.String(max_length=255),
+            '+sort_index': float,
+            'client_phone': V.Nullable(V.String(max_length=255)),
+            'location': {'latitude': float, 'longitude': float},
+            'contractor': V.Range(V.AdaptTo(int), min_value=1),
+            'upstream_http_referrer': V.Nullable(V.String(max_length=1023)),
+            '+grecaptcha_response': V.String(min_length=20, max_length=1000),
+            'last_updated': V.AdaptBy(dateutil.parser.parse),
+            'skills': V.Nullable(
+                [
+                    {
+                        '+subject': str,
+                        '+subject_id': int,
+                        '+category': str,
+                        '+qual_level': str,
+                        '+qual_level_id': int,
+                        'qual_level_ranking': V.Nullable(float, default=0),
+                    }
+                ],
+                default=[],
+            ),
+        }
+        self.validator = V.parse(schema, additional_properties=allow_extra)
+
+    def validate(self, data):
+        try:
+            return True, self.validator.validate(data)
+        except V.ValidationError as e:
+            return False, str(e)
diff --git a/docs/.benchmarks_table.md b/docs/.benchmarks_table.md
index 8535f5f..54bfb06 100644
--- a/docs/.benchmarks_table.md
+++ b/docs/.benchmarks_table.md
@@ -4,6 +4,7 @@ Package | Version | Relative Performance | Mean validation time
 --- | --- | --- | ---
 pydantic | `1.1` |  | 46.1μs
 cattr | `19.3.0` | 1.3x slower | 62.1μs
+valideer | `0.4.2` | 1.4x slower | 62.6μs
 marshmallow | `2.15.1` | 2.9x slower | 132.7μs
 toasted-marshmallow | `2.15.2post1` | 2.9x slower | 134.1μs
 trafaret | `2.0.0` | 3.3x slower | 153.5μs