I've got one with a mint green power-on button, otherwise looking the same.
(As I recall it did not have much for cooling vents, and some drives failed because of it)
To find the manufacturer I will have to dig out the original box from storage, not easy at the moment, too much snow.
Update: I got into and looked in my storage, but I don't think the box for this case is there, anyway it would likely be a no-name Taiwanese/Chinese case used in any home-built PC. I bought these things in local shops who did the import, when building my PC:s in the 90:s, in this I had a 486 which I think got upgraded to a Pentium eventually.