Started to take an interest in Canadian criminal history etc. at the current moment who would you consider the most powerful criminal organization in Canada?

the hells angels are still the largest most connected group that is set up from coast to coast. they have chapters and/or support/puppet clubs across the country and have alliances with other important high level OC groups both in canada and abroad.

I would say the HAs

are the Hells Angels bigger in Canada than the US?

Don’t know if they are bigger, but they do hold more weight in the canadian criminal world than in the US.
The HAs are at least top 3 organizations in every canadian provinces