Best Buy Co., Inc. (nyseBBY) is a specialty retailer (Retailing) of consumer electronics in the United States and Canada accounting for 19% of the market. It also operates in Mexico, China (Peoples Republic of China), Turkey and the United Kingdom. The companys subsidiaries include Geek Squad, Magnolia Audio Video, Pacific Sales, and, in Canada operates under both the Best Buy and Future Shop label. Together these operate more than 1,150 stores in the United States, Puerto Rico, Canada, China (Peoples Republic of China), Mexico, and Turkey. The companys corporate headquarters are located in Richfield, Minnesota.

With the 50% acquisition of UK (United Kingdom)-based mobile phone operation The Carphone Warehouses retail division in the second quarter of 2008, Best Buy announced that it would open branded superstores in the UK and other European countries. Best Buy will first open stores in the UK, with plans for up to 200 stores eventually, although the initiative has been delayed until the second quarter of 2010 by the state of the retail market. It is also considering purchasing UK rivals Kesa Electricals (owner of Comet (Comet Group plc)), DSG International (DSG International (retailer)) (owner of Currys and PC World), or both. It is unknown whether these stores will rebrand if acquired by Best Buy. The first two Best Buy stores in the UK (Best Buy Europe#UK stores) will open at The Junction retail park near Lakeside Shopping Centre in Thurrock Essex, and near Southampton at Prupim?s Hedge End Retail Park. A 10-year lease has been signed for the Lakeside store with 50,000 square foot of retail space, while the Southampton store will cover 35,000 square foot. In total 20 locations were planned for 2009 which will all be big box format, however the company is looking for a flagship store in Central London in a prominent area such as Piccadilly Circus, Oxford Street or Regent Street. There is also a store opening at the Merry Hill Centre in Brierley Hill, West Midlands (West Midlands (county)). The company announced plans to open a fourth outlet at Aintree Retail Park in Liverpool by spring 2010.

Best Buy was named "Company of the Year" by Forbes magazine in 2004, "Specialty Retailer of the Decade" by Discount Store News in 2001, ranked in the Top 10 of "Americas Most Generous Corporations" by Forbes magazine in 2005 (based on 2004 giving), and made Fortune (Fortune (magazine)) magazines List of Most Admired Companies in 2006.

On March 9, 2009, Best Buy became the primary electronics retail store (online (Electronic commerce) and bricks and mortar (brick and mortar business)) in the eastern United States, after smaller rival Circuit City (Circuit City (1949-2009 company)) went out of business. Frys Electronics remains a major competitor in the western United States. Many locations feature in-store pickup, which can be arranged through the companys website.