My immediate reaction was that it would be some kind of white-label or rebrand of
Bulldog B4 - and the Bulldog range of yeast appears to be a white label version in turn of Mangrove Jacks. So my immediate reaction would be that it's quite likely to be M15 Empire.
Brewly were a British company producing mail-order beer kits that seems to have disappeared in 2016 or so, I don't know how this company relates to that one. But their hardware also looks similar to Bulldog, which is the retail brand of
Hambleton Bard.
There's not many producers of dry yeast, which is a pretty specialised process, at best I'd imagine that they're repacking in Sweden with actual production elsewhere. Dry English yeasts are S-33/Windsor for low attenuation, S-04 for middle and Nottingham for high attenuation - and Verdant if you're talking about something that's not been on the market for more than a few months.