Element Messenger

element.io

Microsoft Teams

parent coMicrosoft

products.office.com

Signal

regionSan Francisco, California

signal.org

rocket.chat

rocket.chat

Spectrum

regionSan Francisco, California

spectrum.chat

Sphere beta

sphere.me

Marco Polo

marcopolo.me

MessageGears

messagegears.com

Paltalk

paltalk.com

PureChat

purechat.com

QQ

parent coTencent

regionChina

qq.com

Relevnt

relevnt.com

Rival Messenger

rivalmessenger.com

Ryver

ryver.com

SafeRoom

regionus-miami

saferoom.io

Sinch

sinch.com

Solace

solace.com

Sphere

sphere.social

Talkomatic

talko.cc

Teamchat

regionSan Francisco, California

teamchat.com

Teamwork Chat

parent coTeamwork

teamwork.com

tlkio

tlk.io

Trillian

trillian.im

Truth

usetruth.com

Userplane defunct

parent coAOL

Viber

parent coRakuten

viber.com

Webaroo

regionSan Francisco, California

webaroo.com

WeChat

parent coTencent

regionChina

wechat.com

Wickr

parent coAWS

regionNew York, NY

Xfire defunct

regionSan Francisco, California

Glip

parent coRingCentral

glip.com

Backchat

getbackchat.com

BBM

parent coBlackBerry

Blabber defunct

Chat Engine

chatengine.io

Chatzy

chatzy.com

Choco

choco.com

Cloverpop

cloverpop.com

Community Inviter

communityinviter.com

Convo.com team messaging*

convo.com

Dino

dino.im

Dream Lover

dreamlover.com

Dust

usedust.com

Facebook Messenger

parent coFacebook

messenger.com

AIM

parent coAOL

aim.com

GTalk

Gubagoo

regionBoca Raton, Florida

gubagoo.com

HelloShift

helloshift.com

HighChat

highchat.org

hikein

hike.in

Instaply

instaply.com

IRC

KakaoTalk

parent coKakao

regionKorea

kakaocorp.com

Knock Knock App

Laiwang

parent coAlibaba

LINE

regionJapan

line.me

Lua Healthcare

getlua.com

Mailburn defunct