app/soc/templates/v2/modules/gci/homepage/_participating_orgs.html

{% if participating_orgs %}
  <div class="block block-participating-orgs">
    <div class="block-title">Participating Organizations</div>
    <div class="block-content">
      {% for org in participating_orgs %}
        <a href="{{ org.link }}"><img src="{{ org.logo }}" alt="{{ org.name }} logo" title="{{ org.name }}"/></a>
      {% endfor %}
    </div>
    <div class="block-footer"><a href="{{ org_list_url }}">See all participating organizations</a></div>
  </div>
{% endif %}
<!-- end .block.block-home-participating-orgs -->