Bizz is a very clean and minimal free WordPress theme created by WPExplorer.com that is ideal for business and portfolio websites. The theme features a homepage built using custom post types (slider, homepage highlights and latest portfolio items) making it really easy to set everything up, you can create an unlimited amount of paginated portfolio pages to showcase your work as well as add a page template with a filterable portfolio, there is a whole blog section for sharing news and 2 widgetized areas (sidebar and footer).