| Avaya CM |
| Agilysys LMS |
| Agilysys Visual One |
| Agilysys Stay |
| AutoClerk |
| Amadeus |
| Atrio |
| Arpon |
| Brilliant |
| Cenium |
| Centigram |
| Choice |
| CMS |
| Comfort Suites |
| Comtrol 221 |
| Comtrol 341 |
| DuVoice Advanced |
| DuVoice Serial |
| Encore |
| Epitome |
| Galaxy Starwood |
| HIS |
| Hitachi (PBX) |
| Hitachi (VMS) |
| HSS Front Clerk |
| HMS |
| HSS Promus |
| Innovations |
| InnQuest roomMaster |
| Innsist |
| Infor |
| InnSoft Checkin |
| InnSource |
| IQ Ware |
| Jazzware |
| Jonas |
| Lanmark |
| Lexington |
| Lodgistix |
| Maestro by Northwind |
| Megasys |
| Mingus Hotello |
| Mitel VMS |
| Mitel PBX |
| MSI |
| NEC NEAX Model 60 and 90 |
| Nortel |
| Nova |
| Opera Oracle |
| Remco Night Vision |
| Resort Data Processing RDP |
| Resortsuite |
| RezStream |
| Richie |
| Roomkey |
| Sabre SynXis |
| SIHOT |
| Shijii |
| Silverbyte |
| Skytouch |
| Softbrands |
| Springer Miller |
| Timeshareware |
| Victorian |
| Visual Matrix |
| WebRezPro |
| Zeus |
PMS Partners
