FORTUNE has joined the human resources (HR) consulting firm Hewitt Associates and the HR services firm RBL Group to identify companies around the world that are best at attracting, developing and keeping business leaders. It's no coincidence that they turn out to be many of the world's top performing companies.
Developmental assignments are among the most important tools that great companies like IBM (No.1) use to build leaders--and that average companies rarely use at all. The importance of such assignments and how they're being adapted to pay off in today's global economy are two of the strongest messages emerging from the research behind Fortune's new ranking of the world's Top Companies for Leaders.
