The brands extension for WooCommerce allows you to create brands for your shop; each brand can be named, described and assigned an image. Brands can then be:

• Listed, indexed, on a page using a special A-Z shortcode
• Displayed as thumbnails on a page using a shortcode
• Displayed in the sidebar using a widget
• Assigned to a product
• Used to view products using a dedicated layered nav widget

Demo : https://woocommerce.com/products/brands/