small corrections to above
Hitachi and SAP platforms were launched today (10th May 2016 US time)
and interesting thing to note that C3 IoT was spun-off from Oracle seven years ago, and they currently have 20 production deployments generating millions of messages per second
Buddy has 20+ clients in production/pilot/trial stages with many more in pipeline, and estimated to generate 120+ million interactions per day from just a few of these (from reading the 4c announcement).
Also there may potentially be significant business from the Parse platform (by end of 2016 we'll have a more accurate picture).
Some very impressive numbers, and the IoT space is only just getting started...
Early movers in this space are going to be behemoths. Exciting times.