display ticket field to certain companies

with the help of this thread

• Limit dropdown choices by company segment

I figured out how to hide an entire ticket field from all customer companies except customer 1. How do I go about only showing the ticket field for a few customers? like company 1 and company 6

Also this hides the drop down but does not hide the field label. Does anyone know how to remove the label as well?

<script type="text/javascript">
{% if portal.user.company_name <> "company 1"))  %}
  document.addEventListener("DOMContentLoaded", function() {
    		  jQuery('#helpdesk_ticket_custom_field_cf_affected_geo_3014498').remove();
      });
 {% endif %}
</script>