Invision Community - Invision Community is a flexible, integrated set of apps for building communities on the web.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

XenForo - Intuitive. Social. Engaging. Fast. XenForo brings a fresh outlook to forum software.

Influitive - Influitive helps companies increase customer lifetime value and accelerate sales with the power of their own customer advocates. Inspire your customers to stay longer, share their experiences, and attract new business.

NationBuilder - The world's first platform for leaders, handcrafted from scratch to help you grow your community and lead them to action.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.