If you have items that can’t be sold (for instance a overview of companies) disable the possibility of purchasing.
How to Setup Snippet
enable and go!
add_filter( 'woocommerce_is_purchasable', '__return_false' );
remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_price', 10 );
remove_action( 'woocommerce_after_shop_loop_item_title', 'woocommerce_template_loop_price', 10 );