diff --git a/src/Sprunje/UserSprunje.php b/src/Sprunje/UserSprunje.php
index 4f18e01..674c07e 100644
--- a/src/Sprunje/UserSprunje.php
+++ b/src/Sprunje/UserSprunje.php
@@ -32,6 +32,7 @@ class UserSprunje extends UFUserSprunje
     
     protected $sortable = [
         'name',
+        'organisations',
         'last_activity',
         'status',
     ];
@@ -57,6 +58,7 @@ class UserSprunje extends UFUserSprunje
      */
     protected function sortOrganisations($query, $direction)
     {
+        $query = $query->addSelect('organisations.name');
         $query->orderBy('organisations.name', $direction);
 
         return $this;
@@ -84,6 +86,56 @@ class UserSprunje extends UFUserSprunje
         return $this;
     }
 
+    /**
+     * Sort based on last activity time.
+     *
+     * @param Builder $query
+     * @param string  $direction
+     *
+     * @return self
+     */
+    protected function sortLastActivity($query, $direction)
+    {
+        $query = $query->addSelect('activities.occurred_at');
+        $query->orderBy('activities.occurred_at', $direction);
+
+        return $this;
+    }
+
+    /**
+     * Sort based on last name.
+     *
+     * @param Builder $query
+     * @param string  $direction
+     *
+     * @return self
+     */
+    protected function sortName($query, $direction)
+    {
+        $query = $query->addSelect('last_name');
+        $query = $query->addSelect('first_name');
+        $query->orderBy('last_name', $direction)->orderBy('first_name', $direction);
+
+        return $this;
+    }
+
+    /**
+     * Sort active, unactivated, disabled.
+     *
+     * @param Builder $query
+     * @param string  $direction
+     *
+     * @return self
+     */
+    protected function sortStatus($query, $direction)
+    {
+        $query = $query->addSelect('flag_enabled');
+        $query = $query->addSelect('flag_verified');
+        $query->orderBy('flag_enabled', $direction)->orderBy('flag_verified', $direction);
+
+        return $this;
+    }
+
     /**
      * Get the unpaginated count of items (before filtering) in this query.
      *