10.MARC JACOBS
He is the head designer for Marc Jacobs, as well as Marc by Marc Jacobs, a diffusion line, with over 200 retail stores in 80 countries.He was the creative director of the French design house Louis Vuitton from 1997 to 2013.
9.CALVIN KLEIN
He is the founder of Calvin Klein Inc. In addition to clothing, Klein has also given his name to a range of perfumes, watches, and jewelry.
8.TOM FORD
He is the Former creative director of Gucci and YSL.After leaving Gucci, Ford launched his own label TOM FORD, a line of menswear, beauty, eyewear, and accessories in 2006
7.VALENTINO GARAVANI
Best known as Valentino,is the founder of Valentino SpA brand and company. His main lines include Valentino, Valentino Garavani, Valentino Roma and R.E.D. Valentino.
6.DONATELLA VERSACE
She is the current Vice-President of Versace Group, as well as chief designer. She owns 20 percent of the entire stock market assets of Versace. Her brother, Santo Versace, owns 30 percent. Donatella's daughter Allegra Versace inherited 50% of the company stock after the death of Gianni Versace, Donatella's brother and Versace's founder.
5.COCO CHANEL
Gabrielle Bonheur Chanel is the founder of Chanel brand. She was the only fashion designer to appear on Time magazine's list of the 100 most influential people of the 20th century.A prolific fashion creator, Chanel's influence extended beyond couture clothing. Her design aesthetic was realized in jewelry, handbags, and fragrance. Her signature scent, Chanel No. 5, has become an iconic product
4.CHRISTIAN DIOR
He is the founder of one of the world's top fashion houses Dior , also called Christian Dior, but now owned by LVMH.
3.RALPH LAUREN
Founder of Polo Ralph Lauren clothing brand, and a global multi-billion-dollar enterprise. He has become well known for his collection of rare automobiles, some of which have been displayed in museum exhibits. As of September 2012, Forbes estimates his wealth at $6.5 billion dollars, which makes Ralph Lauren the 162nd richest person in the world.
2.GIORGIO ARMANI
He is known for his clean, tailored lines. He formed his company, Armani, in 1975, and by 2001 was acclaimed as the most successful designer to come out of Italy with an annual turnover of $1.6 billion and a personal fortune of $8.5 billion as of 2013
1.YVES Saint Laurent
Yves Henri Donat Mathieu-Saint-Laurent, is regarded as one of the greatest names in fashion history. He is credited with having introduced the tuxedo suit for women and was known for his use of non-European cultural references, and non-White models.
Source:Wikipedia