Twitch - Twitch is one of the most prominent streaming services around, serving as a platform primarily for video game and pop culture streamers.
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.
Mux Video - Mux Video is the API that makes you a video expert.
Red5 - Red5 is an open source Flash media server for live streaming solutions of all kinds.
api.video - Add video to your product in minutes
Nimble Streamer - Light-weight media server that is freemium, pay for control panel if you need it.