There's a good reason Steven Gluckstern's New York City loft is often called Carnegie Hall South. In the past decade, Gluckstern and his wife, Judy, have hosted 34 concerts there to benefit Classical Action: Performing Arts Against AIDS. The couple got involved with the charity in the late 1990s after Gluckstern's business partner, Michael Palm, died of AIDS. Since then, they have hosted thousands of guests for performances from Renée Fleming and Joshua Bell. In December, pianist Emanuel Ax headlined the final performance at the loft. This year, Gluckstern (pictured in foreground, before the Ax concert) is moving his family and his medical-equipment business, Ivivi Health Sciences, to San Francisco, where he plans to create Carnegie Hall West.

Money raised since 1999
$1.5 million

Roughly 70 classical musicians and Telly Monster from Sesame Street

Essential equipment
A Steinway Centennial grand piano, purchased from the estate of Gluckstern's late business partner, Michael Palm