RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Social Games in Slack - Polly brings your WFH team together with interactive games
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
Flinkit! - Web-hosted team building games for small and large companies
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
Trivia for Google Chat - Team-building w/ fun quizzes, games right inside Google Chat