Question: In which city is the head office of this Canadian retail business group that acquired Gilt Groupe?

Context paragraphs:
Kevin P. Ryan: Kevin P. Ryan is an American Internet entrepreneur in the United States who has founded several New York-based businesses, including Gilt Groupe, Business Insider and MongoDB, and helped build DoubleClick from 1996 to 2005, first as president and later as CEO.

Intergator: intergator is an Information Access Platform and a product suite for Enterprise Search.  It is an intelligent systemwide search engine, knowledge management- and analytics platform.  The fifth generation focusses on Enterprise Search - Next Generation, Big Content Analytics, Knowledge Capturing and Social Intranet.  It is developed by interface projects GmbH, a subsidiary of the interface business group with its head office in Dresden, Sachsen.

Alexandra Wilkis Wilson: Alexandra Wilkis Wilson is an American entrepreneur who cofounded the companies the Gilt Groupe, GlamSquad and Fitz.

Gilt Groupe: Gilt is an online shopping and lifestyle website based out of the United States.  Gilt Groupe was launched in 2007 by five founders.  At one time valued at over $1 billion on paper, the company was eventually sold to Hudson's Bay Company for approximately $250 million, which was far lower than the total obtained from its investors.  Prior to the Hudson’s Bay acquisition, sales were exceeding growth projections but Gilt Groupe had not been profitable yet.

Canadian Tire: Canadian Tire Corporation, Limited is a Canadian retail company which sells a wide range of automotive, sports and leisure, and home products.  Some stores also sell toys and food products.  Retail operations include: Canadian Tire, the core retail and automotive service operation, which operates a large car repair garage in each store; Canadian Tire Petroleum; Mark's, a men’s, women’s, and work apparel retailer; sporting goods and sportswear retail conglomerate FGL Sports; and PartSource, which retails auto parts and accessories.  The company's head office is in Toronto, Ontario.  The retailer is known for its Canadian Tire money, a loyalty program first introduced in 1958, where customers are provided with coupons resembling paper money worth 0.4% of their purchase that can be used in subsequent purchases as scrip at Canadian Tire stores and gas stations, and some merchants in flea markets.

TigerDirect: TigerDirect is an El Segundo, California-based online retailer dealing in electronics, computers, and computer components that caters to business and corporate customers.  Previously owned by Systemax, which is known for its acquisitions of the intellectual property of the defunct U.S. retail chains Circuit City and CompUSA, and relaunching them as online retailers.  The two brands were subsequently shuttered and consolidated into the TigerDirect site.  In 2015, TigerDirect phased out all of its remaining brick-and-mortar retail operations, and PCM Inc. acquired Systemax's online North American technology retail business.

Sears Canada: Sears Canada is a Canadian retail chain headquartered in Toronto, Ontario.  The company's roots are in Simpsons-Sears, a joint venture with the Simpsons retail chain and the U.S. Sears chain, which operated a national mail order business, and co-branded Simpsons-Sears stores modelled after the U.S. Sears chain.  Following the purchase of Simpsons by the Hudson's Bay Company in 1978, the joint venture was dismantled, and the Simpsons-Sears stores became solely owned by Sears.  In 1999, Sears Canada acquired the remaining assets and locations of the historic Canadian chain Eaton's.  Sears Holdings now owns a 10% share in the company.  ESL Investments is the largest shareholder of Sears Canada.

Co-op Food: Co-op Food, previously trading as The Co-operative Food, is a brand devised for the food retail business of the consumer co-operative movement in the United Kingdom.  When looking at food retail, the brand is commonly understood to represent one food retail business, though this is not true as it is used by over 15 different co-operative societies which operate over 4,000 outlets.  Successor to Co-op Welcome and a range of regional formats, the latest version of the brand was introduced in 2016 with a significant advertising campaign.  Customers of many of the larger UK co-operative societies can earn an annual share of the profits at any "Co-operative" branded stores in proportion to purchases through The Co-operative Membership scheme.

Hudson's Bay Company: The Hudson's Bay Company (HBC; French: "Compagnie de la Baie d'Hudson" ), commonly referred to as The Bay (La Baie in French), is a Canadian retail business group.  A fur trading business for much of its existence, Hudson's Bay Company owns and operates retail stores throughout Canada, Belgium, Germany, the Netherlands, and the United States with Galeria Kaufhof, Gilt, Hudson's Bay, Home Outfitters, Lord & Taylor, and Saks Fifth Avenue.  HBC's head office is in the Simpson Tower in Toronto, Ontario.  The company is listed on the Toronto Stock Exchange under the symbol "HBC".

Sinar Mas Land: Sinar Mas Land , a business group of Sinar Mas Group, is a real estate development firm.  It combines two big developers: "Bumi Serpong Damai Tbk" and "Duta Pertiwi Tbk".  It formed in 1988 under the flag of Duta Pertiwi.  It now holds substantial interests in a businesses including residential housing, apartments, shopping centers, hotels, office buildings, industrial estates, townships and cities.  Its head office building, designed by Aedas, is located in the BSD Green Office Park in Jakarta and received a high commendation under Indonesia’s office architecture at Asia Pacific Property Awards 2014.

Supporting paragraphs: Hudson's Bay Company Gilt Groupe
Answer: Toronto, Ontario