It is Godin Guitars now. LaSiDo was the old name for Godin.As Rocky said, Jean Larrivee has moved operations to the US. All of the LaSiDo brands are made in Canada. The Boucher family, once part of this company, have split off and are making Boucher-branded guitars.
There are several Craft luthiers; several of them apprenticed under Larrivee. Linda Manzer has the highest profile. William "Grit"Laskin is another. David Wren also comes to mind, but I don't know whether he's still making guitars; he also has/had an interest in the Twelfth Fret, a well-known shop in Toronto. Mackenzie & Marr are a craft duo - a friend has one of their acoustics. I'm sure that there are others.
The Boucher brothers are the sons of Normand Boucher, who started building guitars by hand at first, and then started up a guitar factory that went through a number of transitions to become the Godin factory today. The Norman line of guitars is named after Normand Boucher. One of the Boucher brothers, Claude Boucher used to design the slope shouldered guitars (Lys) for the factory that Normand Boucher started, and had left Godin Guitars a while ago, and created Boucher Guitars with his brother. Quite the line of guitars they are. Robert Godin was the sales rep for the Normand Boucher guitar factory. Simon and Patrick guitars are named after the first names of his two sons. The same factory used to produce nylon string guitars under the La Patrie and Kamouraska brands.
Godin guitars does have a US factory, but it mostly makes electric guitars, and semi-hollowbody guitars. The acoustics are still made in Quebec.
Jean Larrivee had a fairly large factory in Vancouver, British Columbia, but pulled up roots and moved to California a while ago.
As for "craft" guitar makers (i.e. handbuilders) in addition to the ones mentioned above, there is Paul Beauregard, the De Jong family, Michael Greenfield, Judy Threet (not building any more) and probably at least another half dozen more that I can't recall right now.