Can I reference the contact ID of the Current Employer with a Drupal entity token?
We ended up using Markup field in the webform with some PHP code that made a CiviCRM API call:

&lt;?php
$params = array(
  'version' =&gt; 3,
  'is_active' =&gt; 1,
  'sequential' =&gt; 1,
  'contact_id_a' =&gt; $_SESSION['CiviCRM']['contact_id'],
  'relationship_type_id' =&gt; 4,  // Employee Of
);
$result = civicrm_api('Relationship', 'get', $params);

if ( ! $result['is_error'] ) {
  $employer_id = array_shift($result['values'])['contact_id_b'];
}

if ( $employer_id ) { ?&gt;
    &lt;input onclick="location.href='/link-to-webform?cid1=&lt;?php echo $employer_id ?&gt;';" type="button" value="Manage Contacts" /&gt;
&lt;?php }


I'm going to file an issue on the module.