LeadPages - LeadPages™ Software is the world's easiest landing page generator. It's the easiest way to build conversion optimized & mobile responsive landing pages.
Inbound Now - Build Landing pages, manage inbound leads, and create calls to actions to improve marketing with our Inbound Marketing Plugins for WordPress
Unbounce - Unbounce lets marketers build, publish and test landing pages without IT or software. A/B testing and lead gen make it a powerful marketing tool.
Pagewiz - An innovative landing page platform that lets you create, publish, and split-test landing pages.
QuickPages - Free forever landing page generator.
Lander - Lander is a powerful online tool to create Landing Pages.