Wendy’s had Tim Horton’s for a while. There are some co-branded outlets. I think Burger King has them now.
Restaurant Brands Intl - RBI - runs Burger King, Popeyes, Firehouse Subs and Tim Hortons, HQ in Toronto. It is publicly traded, primary shareholders are 3G Capital, Pershing Square Capital Management & Capital Group Companies
www.rbi.com