组图：40位40岁以下的商界精英

31. 凯蒂娅•比彻姆和海利•巴尔纳

•  年龄：30，30

•  职务：联合创始人和联合CEO

•  任职公司：化妆品公司Birchbox

    2010年，哈佛大学商学院（Harvard Business School）毕业生巴尔纳和比彻姆于创建了Birchbox，每月为女性用户提供四到五种价格为10美元的化妆品样品。这家初创公司使订购成为流行趋势，但是它本身并没有进行这样的分类。每月的化妆品套装为一小份新产品，这促使一半以上的订购者在Birchbox网站上购买全套产品。截至目前，Birchbox已获得1,190万美元融资，并于2012年4月发布了男士系列产品（每月样品价格为20美元）。同年9月，Birchbox并购了巴黎的JolieBox，轻而易举地把业务扩展到法国、西班牙和英国市场，用户数量更是达到40万。

31. Katia Beauchamp & Hayley Barna

•  Age:30, 30

•  Title:Co-Founders and Co-CEOs

•  Company:Birchbox

    Founded in 2010 by Harvard Business School grads Barna and Beauchamp, Birchbox providers its female users with four to five beauty samples for $10 a month. The startup popularized the subscription box trend, but don't categorize it as such. The monthly packages enable bite-size discoveries, leading more than half of all subscribers to purchase full size products on their website. Birchbox has raised $11.9 million to date and launched its men's line (with a higher price point of $20 per month) in April 2012. It then acquired Parisian JolieBox the following September, allowing easy expansion into France, Spain and the UK, growing its user-base upwards of 400,000.