Themify Flow - Drag & drop Wordpress theme builder
Elegant Themes - Simple, yet beautiful WordPress themes with easy to use implementation and support.
Layers - A simple Wordpress site builder & its free forever
ThemeFuse - ThemeFuse is a store that provides high-quality designed WordPress themes to let you stand apart from the crowd.
Elementor - Elementor is a front-end drag & drop page builder for WordPress.
ThemeGrill - ThemeGrill is an online marketplace that develops and sells WordPress themes and plugins that you can buy to create professional websites for businesses, magazines, and blogs.