Simple Poll - The easiest way to create polls in Slack
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
GitHub Polls - Polls for GitHub issues and readme
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
minipoll - Create simple shareable polls in seconds
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs