Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

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

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

LiveAgent - LiveAgent is a fully-featured web-based live chat and help desk software. It harnesses the power of a universal inbox, real-time live chat, built-in call center, and a robust customer service portal. Start your free 1 month trial today!

Bylde - Bylde is a SaaS platform you can use to Start, Manage and Grow your groups and communities.

UserEcho - UserEcho gives you the opportunity to create a modern Community to support customers in a few minutes. It includes support forum with the possibility of voting for ideas, Helpdesk, Knowledge Base and Online Chat.