Facebook Groups - This app gives you a dedicated space for you and your groups
Mobilize - Mobilize is a scalable messaging app built for large groups.
NationBuilder - The world's first platform for leaders, handcrafted from scratch to help you grow your community and lead them to action.
Telegram Desktop - Fast and secure desktop messaging app, now updated
FUEL CYCLE by Passenger - Think Passenger builds online platforms that allow brands to connect, create and communicate with key stakeholders.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.