How venture-backed firms have put a bulla s-eye on the resi listings management space

... agents at other firms would be able to quickly access it and start showing it to buyers. But in 2013, REBNY tapped Katonah, New York-based Stratus Data Systems to launch the RLS - replacing R.O.L.E.X. with a newer model. Five years later, R.O.L.E.X. ...
https://therealdeal.com/2018/03/07/piping-in-listings-pumping-out-cash/