How much of their money stays in Canada? Is Sherwood the only real Canadian equipment manufacturer left?
Well, you seem to have a pretty good handle on it. Sherwood's been through a fair amount since its founding in Quebec back in the 40's as Sherwood-Drolet, changed hands a few times, filed for Bankruptcy back in 2008 then re-emerged under a reorganization plan that included having their wooden sticks manufactured off-shore while concentrating on the composites in Canada.
The first family of hockey equipment mfg was the Starr Skate Company of Dartmouth Nova Scotia along with Mic-Mac Hockey Sticks of northern New Brunswick in the late 18th & early 19th Centuries. The Canadian Cycle Manufacturing (C.C.M.) company entered in the 1900's producing steel blades & innovated the tube skate, acquiring George Tackaberry's (of Winnipeg) skate boot mfg firm and introducing C.C.M. Tacks, the most widely used & popular skate with amateurs & pro's through to the mid-70's. Lost market share to their main rival Bauer at that time who came out with the Tuuk chassis system....
Daoust, Hespeler, Cooper-Weekes (nee: Cooper which became the #1 equipment mfg in the 60's) followed. Spalding & others in the US also producing skates & equipment as early as the 20's. Northland Hockey Stick Mfg Co, Christian Brothers of Minnesota and so on. Interesting histories all. Several smaller boutique & specialty manufacturers in Canada still, notable goalie equipment makers, the Granddaddy of them all being Kenesky's of Hamilton Ontario who's handmade pads were used by most NHL & minor pro, major junior players from the 40's to mid 60's.... I would recommend you simply visit the Canadian Sporting Goods Manufacturers Association website for a detailed breakdown of Canadian owned & manufactured suppliers, and see if they list what % of their product is sold domestically and what % is sold via export if such inf is even made public.
Good luck, and closed....