Question: The first Capcom Pro Tour was co-sponsored by a live streaming video platform owned by a subsidary of who?

Context articles: Capcom Cup 2014
Twitch.tv
TwitchCon
Capcom Cup 2016
Capcom Pro Tour 2016 regional finals
Haivision
Capcom Pro Tour
Capcom Pro Tour 2017
Mixer (website)
Twitcam

Capcom Cup 2014 was an "Ultra Street Fighter IV" tournament held at The Warfield in San Francisco, California on December 13, 2014.
 32 players qualified for the tournament by winning at events at the first Capcom Pro Tour, co-sponsored by Twitch.tv.
 The tournament was won by Yusuke Momochi, defeating Kun Xian Ho in the finale and winning $30,000 USD.
Twitch is a live streaming video platform owned by Twitch Interactive, a subsidiary of Amazon.com.
 Introduced in June 2011 as a spin-off of the general-interest streaming platform, Justin.tv, the site primarily focuses on video game live streaming, including broadcasts of eSports competitions, in addition to creative content, "real life" streams, and more recently, music broadcasts.
 Content on the site can either be viewed live or via video on demand.
TwitchCon is a convention for the live streaming video platform Twitch.tv devoted to Twitch and the culture of video game streaming.
 The first convention was held in 2015.
Capcom Cup 2016 was a "Street Fighter V" video game tournament that was held in December 2016.
 32 players qualified for the tournament by winning one of the eleven Capcom Pro Tour Global Premier Events, Evo 2016, one of the four regional events, and/or by scoring high on the game's leaderboards.
 "Street Fighter V" was released shortly before the start of the 2016 Capcom Pro Tour, replacing "Ultra Street Fighter IV" from the previous season.
The regional finals of the 2016 Capcom Pro Tour were a series of closed "Street Fighter V" tournaments held throughout the world.
 The champions of the four different regions – North America, Latin America, Europe, and Asia – automatically qualified to compete at the 2016 Capcom Cup.
 People qualified to compete in their regional finals by scoring highly on their regional leaderboard or winning ranking events during the 2016 Capcom Pro Tour.
 The four tournaments all took place between October 15 and November 19, 2016.
Haivision supplies an enterprise video platform that allows small and large organizations to deliver rich video content.
 The Haivision Video Platform can stream live and video-on-demand content, IPTV, digital signage, and public live streaming solutions complete the full Haivision Video Platform.
 Haivision is based in Montreal and Chicago with more than 200 employees and 7 offices worldwide.
The Capcom Pro Tour is a series of international fighting game tournaments sponsored by video developer Capcom.
 The Pro Tour culminates in the annual Capcom Cup, a single-day tournament held in the San Francisco Bay Area.
The 2017 Capcom Pro Tour is the fourth edition of the Capcom Pro Tour and the current season of "Street Fighter V" tournaments that are officially sponsored by Capcom.
 The 2017 Capcom Pro Tour followed several months after the "Season 2" update of "Street Fighter V" and started off with Final Round 20 on March 10.
 Much like the 2016 season, this season features eleven Premier Events, a few dozen smaller tournaments, several online tournaments, and the Evolution Championship.
 In these tournaments, competitors can gain points needed to qualify for the 2017 Capcom Cup, to be held in December.
Mixer (formerly Beam) is a Seattle-based live streaming video platform owned by Microsoft.
 The service officially launched on January 5, 2016.
Twitcam was created by Livestream, a live streaming video platform It allows Twitter users to stream live video content.
 Each stream is assigned its own URL, which users can access on-demand after the stream is completed.
 Viewers can also participate using the integrated chat feature, which Twitcam converts into a series of tweets, the communication standard for Twitter.
 A related service is Ustream.