Vivox Inc. is an American communications company that manages communication services in the form of integrated voice chat, Instant Messaging (IM) to online games, virtual worlds and other online communities. It is headquartered in Framingham, Massachusetts.
 Vivox was founded by Jeff Pulver in 2005. On September 19, 2005, Vivox announced they had received $6 million in venture capital funding from Canaan Partners and GrandBanks Capital.
 On November 13, 2007, Vivox announced they had secured $7.8 million in Series B financing. This funding was led by Benchmark Capital and supported by existing investors Canaan Partners and GrandBanks Capital. With the support of Benchmark Capital, former CEO of JAMDAT Mobile, Mitch Lasky, was added to the Vivox board of directors.
 On February 2, 2010, Vivox announced that they had raised $6.8 Million in funding for their Series C funding. The round was led by IDG Ventures and included follow-on investments from existing investors, Benchmark Capital, Canaan Partners and GrandBanks Capital. In addition, IDG Ventures managing director Phil Sanderson joined the Vivox Board.
 On January 29, 2019, Unity acquired Vivox for an undisclosed amount.
 On May 10, 2006, CCP Games and Vivox announced that EVE Online players would have real-time, in-game voice communication as the result of an agreement between the two companies. Vivox provided CCP with an integrated solution that allows players to speak with each other in-game, and create audio conference channels for their gang, corporation or alliance.
 On February 27, 2007, Vivox announced a partnership with Linden Lab and that they would provide integrated voice communications to the Second Life Grid. This included spatial audio that allows residents to hear each other based on their positions. This technology was licensed by DiamondWare Technologies.
 During the 2008 Game Developers Conference in San Francisco, California, Vivox announced a partnership with Sony Online Entertainment. The agreement between the two companies brought integrated voice chat into all existing and planned SOE products including SOE's out of game communication application, Station Launcher. SOE games that use Vivox Voice include EverQuest, APB, EverQuest 2, Star Wars Galaxies, and Planetside 2.
 On May 13, 2008, Vivox and NCsoft announced a partnership that would bring voice to the NCsoft player community.
 On September 16, 2008, it was announced that Vivox would provide voice technology for 38 Studios' upcoming MMO.
 On March 24, 2009, Vivox and Real Time Worlds declared that Vivox would provide a voice for Real Time Worlds' MMO, APB. Vivox's spatial 3D voice technology was also included within the game.
 Vivox provided its software for Epic Games' Fortnite Battle Royale on the Nintendo Switch (Vivox was already used by the game across other platforms), which otherwise lacked a voice chat function without using the Nintendo Switch Online companion phone app. Vivox's software provided a direct voice chat solution (not requiring the mobile app) that also supports cross-platform communications. Vivox announced in February 2019 it will provide its software development kit for Switch voice chat so that other games can take advantage of this approach.
 Vivox has encountered backlash from the Linux community for encouraging game developers to drop Linux support, rather than making their software compatible with Linux. A developer for Alderon Games, working on the MMO dinosaur game Path of Titans, received this reply from Vivox when they asked about paying them to add Linux support:
 "Have you considered eliminating Linux from your platforms? It might not be worth the cost to roll your own solution as evidenced by the amount of publishers and developers that use us. We don't have anything that is going to work in your use case, and wish you the best of luck with TS, but if you decide it's not worth the trouble to support what will likely be the smallest user base for your project, we're here to help. I'm going to close out this ticket but if you need anything else, please let me know." Known integrations of Vivox's communications platform in online games and virtual worlds.
 (formerly Bluehole Interactive)
 (formerly Bluehole Interactive)
 Known middleware integrations of Vivox's communications platform.
 C3 is a standalone voice-over-Internet-Protocol (VoIP) client where computer users are able to connect and speak with fellow computer users. C3 allows users to chat both through text and voice by creating chat channels with a maximum capacity of 100 users in each channel.[citation needed]
 The target audience of C3 is gamers who can use the software to communicate with other gamers among the same guild, team, clan, etc. on an online multiplayer game (MMO). Voice communication allows for players to use teamwork to their advantage while creating a sense of online community.