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

Vimeo Live - Live stream your videos in high-quality 1080p, get tools to boost engagement (and lower stress), and enjoy one home for all your live and uploaded videos.

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

Tidze - All-in-one ticketing and live streaming

Bigtent - BigTent is a web-based organization and communication portal for groups.

Flutin - Flutin is an online live streaming platform through which you can easily multistream on 40+ platforms.