Good question? I am not sure myself. They appear to be registered in moldova but that doesn't mean much I have heard regulation is very loose there but still they seem to be pretty professional to me at least. I have used their products a couple of times and made decent gains with them. So IMO it is one of those brands that I can't say for sure.
I'm currently using Balkan Pharm test e. The number checked out on their site and I got my gear from a good source. Been running 500mg per week for more than five weeks now and to be honest I feel nothing. I've gained about four or five pounds, but no increase in strength, no side effects. After only five weeks I can't say anything conclusively, but I'm admittedly disappointed in my results so far. I'm going to finish this vial and then start running Biotech Pharmaclinicos test c, see if it's any better/different.
It's a tough call, as I've read lots of claims from folks who swear BP is the real deal. (But Google the name and you get tons of results of people claiming the stuff is no good. But Google any of the companies and you also get tons of results where people are claiming the gear is garbage, so take that with a grain of salt.)