Manyverse - A social network off the grid
Solid - Solid is a solution for online business meetings.
Public - Group chats.
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
Wire - Private & Secure Messenger
Lander - Lander is a powerful online tool to create Landing Pages.