There's drug trafficking in Edinburgh as there's in any major city, but it isn't really a hotspot for organized crime. Daniel and Lyons families are highly publicized because of their long running feud, but there's way way more mobs operating from Glasgow that are internationally active. Daniel and Lyons are both from North Glasgow and they're no doubt feared and have pull over there, but there's a few mobs from for instance South Glasgow that arguably have even more resources and can be regarded as big time players in the European underworld. There's also mobs operating from West and East Glasgow. We don't know the true extent of their power, but I'd wager that there's even quite a bit more than five organized crime outfits operating from Glasgow.
Curiosity: are the Gillespie brothers from Glasgow? There have been quite a lot of articles about them online, they were supposedly killed in Brazil or still on the run there; they are described as being quite powerful gangsters operating on international level.
Is there any good book about those other gangs in Scotland? As you said, Daniel and Lyons are the most publicized ones, so it would be interesting to learn about the others, if there is any information available to the public.
