Mustafa Türkay Tatar

Beymen Perakende ve Tekstil Yatirimlari AS engages in retail and investment activities in textile sector. It operates garment stores under the brands Boyner, Beymen, AY Marka, and Altinyildiz Textile. The company was founded on January 26, 1952 and is headquartered in Istanbul, Turkey.

Part of HSBC Holdings Plc, Demirbank TAS is a Turkish company that provides corporate, retail, and investment banking services. The company is based in Istanbul, Turkey. Founded in 1953. Demirbank TAS was acquired by HSBC Holdings Plc on October 30, 2001 for $350 million.

Boyner Holding AS engages in the investment and management of fashion retail stores. Its other activities include promotion and marketing. The company was founded in 1952 and is headquartered in Istanbul, Turkey.

Boyner Büyük Magazacilik AS owns and operates retail stores in the clothing and cosmetic sectors. Its activities include management of the stores under the brands Boyner Outlet, Boyner Sports, Boyner Evde, YKM and YKM Sports. The company was founded by Fazil Boyner, Ali Osman Boyner, Hasan Cem Boyner and Lerzan Boyner on February 13, 1992 and is headquartered in Istanbul, Turkey.

Altinyildiz Tekstil ve Konfeksiyon AS is a Turkish textile and apparel company that was founded in 1952 with the aim of introducing Turkish fabric to the world. The company is based in Tekirdag, Turkey. The company has a large integrated facility for woolen fabric production and has the largest sales volume as a market leader in the domestic woolen fabric market. Altinyildiz has an annual production capacity of 10,000,000 meters of fabric and is one of the world's leading woolen industrial companies with an annual turnover of more than 70 million dollars. The company is ultimately controlled by the Government of Qatar.

Beymen Magazacilik AS engages in the management of luxury retail stores. Its product categories include clothes for women, men and kids, cosmetics, gifts, and goods for home of international fashion brands, as well as under its own brand. The company was founded by Osman Boyner in 1971 and is headquartered in Istanbul, Turkey.