Slack, Rocket.Chat, Jitsi Meet, Mattermost, Zenchat, BigBlueButton, urLive, Cisco Jabber, TrueConf, Spectrum Chat, Zulip, OnTrack Meetings, P2P Remote Desktop, Crust Enterprise Messaging, Zangi Business Solutions, Infolio, Gitter, MyChat, palava.tv, JayPad, Keet, ZeroChat, ARKNet, Teleport.Video, Fleep, Corteza Messaging, Flowdock, Whaller, Quill Messaging, Twake, ArrowChat, Milo, Chanty, CloudMeet, Moxtra, Output Messenger, AirSend, p2p.chat, eXo Platform, dirc, Nextcloud Talk, Idka, i-net CoWork, qTeams, Pumble, IceWarp, Glowing Bear, Done Hui, Pychat, Wiggio, Microsoft Kaizala, Kahla, Kandan, uShare.to, Ziggs, Happeo, Total.js Messenger, ChatWork, Meshenger, HeySpace, iSmart.Life, Jostle, Stackfield, HipChat, STAGE by vr-on, Hubgets, Nimses, Vectera, RemoteHQ, Conference Calling, InfinCE, Crugo, SVYFT, Brightable, AVAILO, Alterdesk, Braid Chat, AMPHORY, Voiswave, cabal, Luka, FASTEE, Engagedots, Minsh, DoTimely Hub, LekkerIM, workroo.ms, Intraboom, MainFrame, Slenke, JANDI, Kweknet, Vistasuite, Thirdlane Connect, ScudCloud, Shasper, Tapwater, collAnon, Just Social, Acollab, Nettu Meet, Protonet SOUL, Minty Chat, Mazey, Bopup Communication Server, Typetalk, Zapty, Modular.im, Zoho Remotely, Kezmo, Fuse Chat, GlobalMeet, Filevine are some alternatives to Microsoft Teams.