Heyzap (acquired by Fyber for $45m in 2016) is one of the largest mobile mediation providers. Exited
Location: San Francisco, California, United States
See what Heyzap's website looked around the time of their W09 demo day
Archive date: March 29th 2009
Go no further than Snappr (YC W17), the world's largest marketplace for on-demand pro photography.