Thanks for the link, knight01 - these have been problematic for a long time - we have logos, but SVW was for Silver Arrows, which I suspect is just one part of their operation, and I had made up a logo for GLJ.
These are the official logos, but the country names are below the main logo, and impossible to see at our size, so I've dispensed with them and added national flags instead.
As for OES, I can't find anything about that either :-(
Rod