Go to file:
oc-content/themes/careerjob/functions.php
Find line:
$sql = 'SELECT * FROM ' . DB_TABLE_PREFIX . 't_user WHERE i_items > -1 ORDER BY i_items DESC LIMIT ' . $limit;
change it to:
$sql = 'SELECT * FROM ' . DB_TABLE_PREFIX . 't_user WHERE i_items > 0 AND b_company = 1 ORDER BY i_items DESC LIMIT ' . $limit;