A yin-yang approach to philanthropy has shaped the Ballmer Group. But the husband-and-wife founders have remained focused on one goal: to improve economic mobility in the U.S.

The Justice Department is weighing a sizable reduction in a division designed to handle public corruption cases, a move that ...

At xAI, Elon Musk has marshaled a workforce that has ballooned by more than 1,000 employees in less than two years as he goes ...