Telbee.io - telbee adds voice messaging to podcasts, websites, social media and email to easily hear from and build human relationships with your customers and community - save time, reduce frustration, and gain sales, understanding and fans

Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.

Echo - Golang HTTP server framework

Keybase Chat - End-to-end encrypted chat built into Keybase

Yac - Take your time back from Zoom & Slack

Crypho - End-to-end-encrypted messaging and file sharing