UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.

Solid - Solid is a solution for online business meetings.

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community

Meetingbird - Powerful meeting scheduling and notes — right in your calendar

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

WhosDown - App where you can genuinely make friends—connecting with someone that shares a common interest