Restaurant Brands International‘s $1 billion acquisition of Firehouse Subs in November 2021 has created buzz among RBI’s current franchisees as it sets the stage for expansion. RBI spent the past 10 months integrating Firehouse into its financial and technical structure and is using lessons learned during the pandemic to tweak the latest addition to its portfolio, which also includes Burger King, Tim Hortons and Popeyes. QSR