diff --git a/config.py b/config.py
index 12659dc91..ec929e34d 100644
--- a/config.py
+++ b/config.py
@@ -61,13 +61,7 @@ class Config(object):
         r"nhs\.uk",
         r"nhs\.net",
         r"police\.uk",
-        r"kainos\.com",
-        r"salesforce\.com",
-        r"bitzesty\.com",
         r"dclgdatamart\.co\.uk",
-        r"valtech\.co\.uk",
-        r"cgi\.com",
-        r"capita\.co\.uk",
         r"ucds\.email",
         r"naturalengland\.org\.uk",
     ]
diff --git a/tests/app/main/test_validators.py b/tests/app/main/test_validators.py
index cc9c759e3..672666bf5 100644
--- a/tests/app/main/test_validators.py
+++ b/tests/app/main/test_validators.py
@@ -79,8 +79,6 @@ def _gen_mock_field(x):
     'test@police.uk',
     'test@gov.police.uk',
     'test@GOV.PoliCe.uk',
-    'test@valtech.co.uk',
-    'test@cgi.com',
     'test@ucds.email',
     'test@naturalengland.org.uk',
 ])