18.美国运通：来了就不想走

    总部：美国纽约州纽约市

    2011年收入：300亿美元

    2011年排名：第12名

    美国运通（American Express）是值得信赖的工作场所，这一点早已声名远扬。作为按收入计的美国百强公司之一，它的空缺职位绝不缺少应聘者。实际上，应聘人数约是招聘人数的13倍。一旦进入这家财富500强公司，员工都倾向于留下来——主动离职率为9.5%，约16%的美国员工在公司工作超过20年。美国运通还确保高管人员的多样化——女性占高级管理层的33%。

18. American Express

    Headquarters: New York, N.Y., USA

    2011 revenues: $30 billion

    2011 rank: 12

    American Express has gotten the word out that it's a solid place to work. As one of the 100 largest companies in the U.S. by revenue, it has little problem receiving applications for vacant jobs. In fact, it has about 13 times the number of applicants for its current existing jobs. Once there, AmEx (AXP, Fortune 500) employees tend to stay -- voluntary turnover is 9.5% and about 16% of its U.S. workforce has been at the company for two decades. AmEx has also made sure it has a diverse mix of executives up top -- women make up 33% of senior management.