Ontario and Toronto - Ontario will ban US firms from bidding for public sector contracts, locking them out of some US$139.7bn of projects
Archived version: https://archive.is/newest/https://www.globalconstructionreview.com/ontario-and-toronto-move-to-ban-us-contractors/
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I guess it depends on what you mean by infrastructure.
Feds have their own IT group which usually means out sourced or heavily contracted to firms and consultants.
Feds manage, maintain some bridges and dams, Alaska highway, ports, seaways, and all their Crown real property. If it isn’t Crown owned it is leased. Unsure who the biggest landlord is I would assume Brookfield. Big real estate projects are contracted out, look at Parliament. Usually it’s BGIS, PCL, EllisDon or local contractors.
Thanks for explaining.