This list is revised on : Nov 2016 as per user comments
- GRASE Hotspot
- FirstSpot (for Windows)
- antamedia (hotspot manager for windows)
- Alepo WiFi Captive Portal
Disclaimer: I have collected the list of captive portals/firewalls when I was working on a network products, but no longer. So I rarely maintain this list and the list is here just a information sharing. If you found any thing is not correct kindly post it in comment, so I can correct it.