PagerDuty - Cloud based monitoring service
Spotify - Map shows when two people play same song at same time
VictorOps - We make on-call suck less & help teams to solve problems faster.
SoundCloud - Enjoy music & follow favourite artists
xMatters - xMatters transforms event data into intelligent communication IT teams, avoiding outages and disruptions
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm