- AOL Instant Messenger
- Babel IM
- Camfrog Webcam Messenger
- Catax Messenger
- Easy Message
- ErieX Messenger
- ICQ
- IM+ Messenger (mobiele telefoon)
- IndiaTimes Messenger
- InterChat
- Jabber
- Kiwi Messenger
- Lycos Messenger
- MacPopup
- NetLert
- Odigo
- Online Call
- P2P Messenger
- Praize
- Radio 538 Messenger
- ScreenFIRE
- SendRec
- Vista
- Yahoo! Messenger