If you want to show the manufacturers list on your sidebar or anywhere else in magento site.  You just need add some little code. First open the file app/code/core/Mage/Catalog/Block/Navigation.php Add the below code at the end of file public function getAllManu() { $product = Mage::getModel(‘catalog/product’); $attributes = Mage::getResourceModel(‘eav/entity_attribute_collection’) ->setEntityTypeFilter($product->getResource()->getTypeId()) ->addFieldToFilter(‘attribute_code’, ‘manufacturer’); //can be changed to any attribute [...]