Kanboard - Kanboard is a free and open source Kanban project management software.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Excalidraw - Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
Kinopio - Thinking canvas for mind mapping, brainstorming, and moodboards
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs