13. Kovner Foundations
BRUCE KOVNER, 62
Caxton Associates (hedge fund)
Giving: $9.2 million
Assets: $46.5 million
Kovner is a music man. Recent gift recipients include the Juilliard School ($4.5 million) and the Brooklyn Academy of Music ($2 million).
Bonus fact: Last year, Kovner, chairman of Juilliard, gave a collection of 140 rare music manuscripts to the renowned conservatory.

14. Christy and John Mack Foundation
JOHN MACK, 63
Morgan Stanley (investment bank)
Giving: $9.1 million
Assets: $32.8 million
The Macks aim to keep us smart and healthy, with donations to Duke University ($4.8 million) and the New York-Presbyterian Hospital ($1.3 million).
Bonus fact: They gave $50,000 to WNET Channel 13, New York City's PBS station.

15. Englander Foundation
IZZY ENGLANDER, 59
Millennium Partners (hedge fund)
Giving: $8.8 million
Assets: $17.7 million
Englander favors Brooklyn Jewish causes, such as Yeshiva Rabbi Chaim Berlin ($1.7 million), the oldest yeshiva in the borough.

16. G. and E. Dubin Family Foundation
GLENN DUBIN, 50
Highbridge Capital (hedge fund)
Giving: $8.1 million
Assets: $9.7 million
The Dubins are focused on helping the poor, contributing more than $7 million to the Robin Hood Foundation.

17. Steven A. and Alexandra M. Cohen Foundation
STEVE COHEN, 50
SAC Capital Advisors (hedge fund)
Giving: $8 million
Assets: $6.1 million
Devoted to health-related causes, the Cohens made donations to the Michael J. Fox Foundation ($1.4 million) and Greenwich Hospital ($1.2 million), in Connecticut.
Bonus fact: The Cohens gave $50,000 to the Lance Armstrong Foundation.

18. Bobolink Foundation
HANK PAULSON, 61
Secretary of the Treasury
Formerly of Goldman Sachs (investment bank)
Giving: $7.5 million
Assets: $105 million
Paulson is either in the forest or in the pews. Recent gifts include $2.1 million to the Nature Conservancy and $1.5 million to the First Church of Christ, Scientist, in Boston.