diff --git a/netbox/circuits/forms.py b/netbox/circuits/forms.py
index aae8bb5f6..f41c4cd00 100644
--- a/netbox/circuits/forms.py
+++ b/netbox/circuits/forms.py
@@ -41,7 +41,7 @@ class ProviderForm(BootstrapMixin, CustomFieldForm):
         }
 
 
-class ProviderCSVForm(forms.ModelForm):
+class ProviderCSVForm(CustomFieldForm):
     slug = SlugField()
 
     class Meta:
@@ -119,7 +119,7 @@ class CircuitForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         }
 
 
-class CircuitCSVForm(forms.ModelForm):
+class CircuitCSVForm(CustomFieldForm):
     provider = forms.ModelChoiceField(
         queryset=Provider.objects.all(),
         to_field_name='name',
diff --git a/netbox/dcim/forms.py b/netbox/dcim/forms.py
index 4e201639c..1062974b5 100644
--- a/netbox/dcim/forms.py
+++ b/netbox/dcim/forms.py
@@ -135,7 +135,7 @@ class SiteForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         }
 
 
-class SiteCSVForm(forms.ModelForm):
+class SiteCSVForm(CustomFieldForm):
     status = CSVChoiceField(
         choices=SITE_STATUS_CHOICES,
         required=False,
@@ -322,7 +322,7 @@ class RackForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         }
 
 
-class RackCSVForm(forms.ModelForm):
+class RackCSVForm(CustomFieldForm):
     site = forms.ModelChoiceField(
         queryset=Site.objects.all(),
         to_field_name='name',
@@ -542,7 +542,7 @@ class DeviceTypeForm(BootstrapMixin, CustomFieldForm):
         }
 
 
-class DeviceTypeCSVForm(forms.ModelForm):
+class DeviceTypeCSVForm(CustomFieldForm):
     manufacturer = forms.ModelChoiceField(
         queryset=Manufacturer.objects.all(),
         required=True,
@@ -920,7 +920,7 @@ class DeviceForm(BootstrapMixin, TenancyForm, CustomFieldForm):
             self.initial['rack'] = self.instance.parent_bay.device.rack_id
 
 
-class BaseDeviceCSVForm(forms.ModelForm):
+class BaseDeviceCSVForm(CustomFieldForm):
     device_role = forms.ModelChoiceField(
         queryset=DeviceRole.objects.all(),
         to_field_name='name',
diff --git a/netbox/ipam/forms.py b/netbox/ipam/forms.py
index 8209b2ffa..3d57bd9cc 100644
--- a/netbox/ipam/forms.py
+++ b/netbox/ipam/forms.py
@@ -49,7 +49,7 @@ class VRFForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         }
 
 
-class VRFCSVForm(forms.ModelForm):
+class VRFCSVForm(CustomFieldForm):
     tenant = forms.ModelChoiceField(
         queryset=Tenant.objects.all(),
         required=False,
@@ -138,7 +138,7 @@ class AggregateForm(BootstrapMixin, CustomFieldForm):
         }
 
 
-class AggregateCSVForm(forms.ModelForm):
+class AggregateCSVForm(CustomFieldForm):
     rir = forms.ModelChoiceField(
         queryset=RIR.objects.all(),
         to_field_name='name',
@@ -257,7 +257,7 @@ class PrefixForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         self.fields['vrf'].empty_label = 'Global'
 
 
-class PrefixCSVForm(forms.ModelForm):
+class PrefixCSVForm(CustomFieldForm):
     vrf = forms.ModelChoiceField(
         queryset=VRF.objects.all(),
         required=False,
@@ -554,7 +554,7 @@ class IPAddressBulkAddForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         self.fields['vrf'].empty_label = 'Global'
 
 
-class IPAddressCSVForm(forms.ModelForm):
+class IPAddressCSVForm(CustomFieldForm):
     vrf = forms.ModelChoiceField(
         queryset=VRF.objects.all(),
         required=False,
@@ -806,7 +806,7 @@ class VLANForm(BootstrapMixin, TenancyForm, CustomFieldForm):
         }
 
 
-class VLANCSVForm(forms.ModelForm):
+class VLANCSVForm(CustomFieldForm):
     site = forms.ModelChoiceField(
         queryset=Site.objects.all(),
         required=False,
diff --git a/netbox/tenancy/forms.py b/netbox/tenancy/forms.py
index b90934923..2b793a42f 100644
--- a/netbox/tenancy/forms.py
+++ b/netbox/tenancy/forms.py
@@ -48,7 +48,7 @@ class TenantForm(BootstrapMixin, CustomFieldForm):
         fields = ['name', 'slug', 'group', 'description', 'comments', 'tags']
 
 
-class TenantCSVForm(forms.ModelForm):
+class TenantCSVForm(CustomFieldForm):
     slug = SlugField()
     group = forms.ModelChoiceField(
         queryset=TenantGroup.objects.all(),
diff --git a/netbox/virtualization/forms.py b/netbox/virtualization/forms.py
index 10833234b..de5594e00 100644
--- a/netbox/virtualization/forms.py
+++ b/netbox/virtualization/forms.py
@@ -86,7 +86,7 @@ class ClusterForm(BootstrapMixin, CustomFieldForm):
         fields = ['name', 'type', 'group', 'site', 'comments', 'tags']
 
 
-class ClusterCSVForm(forms.ModelForm):
+class ClusterCSVForm(CustomFieldForm):
     type = forms.ModelChoiceField(
         queryset=ClusterType.objects.all(),
         to_field_name='name',
@@ -302,7 +302,7 @@ class VirtualMachineForm(BootstrapMixin, TenancyForm, CustomFieldForm):
             self.fields['primary_ip6'].widget.attrs['readonly'] = True
 
 
-class VirtualMachineCSVForm(forms.ModelForm):
+class VirtualMachineCSVForm(CustomFieldForm):
     status = CSVChoiceField(
         choices=VM_STATUS_CHOICES,
         required=False,