diff --git a/openstack/sharedfilesystems/v2/securityservices/requests.go b/openstack/sharedfilesystems/v2/securityservices/requests.go
index 1253d33..9de58b9 100644
--- a/openstack/sharedfilesystems/v2/securityservices/requests.go
+++ b/openstack/sharedfilesystems/v2/securityservices/requests.go
@@ -1,6 +1,9 @@
 package securityservices
 
-import "github.com/gophercloud/gophercloud"
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
 
 type SecurityServiceType string
 
@@ -65,3 +68,54 @@
 	_, r.Err = client.Delete(deleteURL(client, id), nil)
 	return
 }
+
+// ListOptsBuilder allows extensions to add additional parameters to the List
+// request.
+type ListOptsBuilder interface {
+	ToSecurityServiceListQuery() (string, error)
+}
+
+// ListOpts holds options for listing SecurityServices. It is passed to the
+// securityservices.List function.
+type ListOpts struct {
+	// admin-only option. Set it to true to see all tenant security services.
+	AllTenants bool `q:"all_tenants"`
+	// The security service ID
+	ID string `q:"id"`
+	// The security service domain
+	Domain string `q:"domain"`
+	// The security service type. A valid value is ldap, kerberos, or active_directory
+	Type SecurityServiceType `q:"type"`
+	// The security service name
+	Name string `q:"name"`
+	// The DNS IP address that is used inside the tenant network
+	DNSIP string `q:"dns_ip"`
+	// The security service user or group name that is used by the tenant
+	User string `q:"user"`
+	// The security service host name or IP address
+	Server string `q:"server"`
+	// The ID of the share network using security services
+	ShareNetworkID string `q:"share_network_id"`
+}
+
+// ToSecurityServiceListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToSecurityServiceListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// List returns SecurityServices optionally limited by the conditions provided in ListOpts.
+func List(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := listURL(client)
+	if opts != nil {
+		query, err := opts.ToSecurityServiceListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+
+	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
+		return SecurityServicePage{pagination.SinglePageBase(r)}
+	})
+}