Cusdis - Open-source, lightweight comment system for your website
Commenze - Fully customizable comment sections for any website
Huddle - Huddle | The Enterprise Content Collaboration Platform
CommentBox.io - Imagine a cleaner, prettier Disqus, but without the ads, tracking, or sharing of personal data.
Coment - Online comments aggregated in one dashboard
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.