I think they still do proteus as well. We are kitting out a brand new industrial unit but it only had a 4 way 3ph board in it and two of the ways were taken up by the roller shutter door and an SPD so that only left 6 single phase ways for lights, heaters, sockets etc and it simply wasn't big enough.
After all the talk on here about wholesalers selling bread and butter stuff I thought a leading wholesaler situated right in the middle of one of the biggest industrial sites in europe might have had one of their own make board in stock but when I inquired they looked at me like I was stupid for thinking they would. It was "nah mate, we wouldn't have one of them, you will have to get it on line"