Carrd - Simple, responsive one-page site creator.
SquareSpace - Squarespace is the easiest way for anyone to create an exceptional website. Pages, galleries, blogs, e-commerce, domains, hosting, analytics, 24/7 support - all included.
Landing Pages in MailChimp - Easy to build, custom landing pages for free
LeadPages - LeadPages™ Software is the world's easiest landing page generator. It's the easiest way to build conversion optimized & mobile responsive landing pages.
Bumble - Bumble is a social network that allows you to feel empowered while you make those connections, whether you’re dating, looking for friends, or growing your professional network. One first move on Bumble could change your life.
Instapage - Backed by award winning design and the largest community of conversion marketers on the planet, Instapage builds tools that make landing page marketing easy.