I know you'll see it in Breweries here and there, not sure where else you might find it. My understanding is that there isn't much support for it here in the states, so if you need support it ends of costing $$$ due to getting someone from across the pond.
Doesn't seem like it's all that different from a combo of SCADA and Batching software, but maybe it has pre-configured face-plates and such, similar to DCS?
They seem to have the brewery market targeted, but I can't imagine that it is doing anything "proprietary" to a brewing process.