悄悄主宰美国人生活的财富500强企业

联合技术（United Technologies）

    联合技术的名字有点不接地气的感觉，其实它是一家子公司众多的制造商，旗下管理着美国一些最杰出的品牌。当然，波音（Boeing）和空中客车（Airbus）每次竞标，无论输赢都会成为新闻。可是联合技术旗下有普惠发动机公司（Pratt & Whitney），为许多波音和空中客车的飞机提供引擎。而且，联合技术还有大家耳熟能详的电梯界标志品牌——奥的斯（Otis）电梯。西科斯基（Sikorsky）是联合技术旗下的又一制造公司，也许你没听过西科斯基这个名字，不过它就是美国军队著名的黑鹰（Black Hawk）直升机的制造商。

    还有听起来不够诱人却无处不在的，联合技术的基础创收业务——气候、控制和安防业务部门。这一部分业务在联合技术净销售额中所占比例最大。2012年此项业务销售额达到171亿美元，而公司的总销售为577亿美元。

United Technologies

    It's got a pretty hands-off name, but United Technologies (UTX, Fortune 500) is a manufacturer with many arms, and it oversees some of the U.S.'s most prominent brands. Sure, Boeing (BA,Fortune 500) and Airbus make the news when they win or lose bids, but United Technologies owns Pratt & Whitney, the company that powers many of the planes those companies produce. And, of course, we all know Otis, the iconic elevator brand, which is a United Technologies company too. Manufacturer Sikorsky is another part of United Technologies' profile. And while Sikorsky may not ring a bell, it made the famous Black Hawk helicopters for the U.S. Military.

    Even less sexy but more pervasive, perhaps, is United Technologies bread and butter -- its climate, controls and security unit. The division made up the largest portion of the company's net sales in 2012 -- $17.1 billion out of $57.7 billion total.