It was indeed as simple as adding http:// in front of it. I feel silly for having overlooked it.
Thanks a lot!
//*i found the function in wp_job_manager_template.php*//
function get_the_company_website( $post = null ) {
$post = get_post( $post );
if ( $post->post_type !== ‘job_listing’ )
return;
return apply_filters( ‘the_company_website’, $post->_company_website, $post );
