Ant Media Server - Scalable, Ultra Low Latency & Adaptive WebRTC Streaming Ant Media Server provides Scalable Ultra-low latency (0.5 seconds) Adaptive Live Streaming with WebRTC. It supports RTMP, RTSP, Zixi, WebRTC, Adaptive Bitrate, HLS and MP4 recording.
Nimble Streamer - Light-weight media server that is freemium, pay for control panel if you need it.
Kurento - Kurento is an open source software development framework providing a media server written in C/C++...
MistServer - MistServer is a lightweight, open-source multistandard multimedia server.
Flussonic - We develop software for streaming video since 2010. Flussonic server solutions help business clients store, capture, deliver and transcode video. Customers in more than 100 countries.
Ushare uPnP media server - uShare is a UPnP (TM) A/V & DLNA Media Server.