Hudson's Bay (formerly and still colloquially known as The Bay) is a chain of 90 department stores that operate exclusively in Canada. It is the main brand of Hudson's Bay Company (HBC), North America 's oldest company. Hudson's Bay store in Markville Shopping Centre with the new brand name. The Room opened in 1937 as the 'St. Regis Room' in the Toronto flagship store at Yonge & Queen. In 2009 The Room was completely renovated and expanded to 21,500 square feet (2,000 m 2) and was re-designed by design firm Yabu Pushelburg.