VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
foobar2000 - An advanced freeware audio player for the Windows platform.
Missive - Team communication app now supporting FB, Twitter & SMS
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
Front - The platform for exceptional customer service at scale.