Cummings was also a prominent art collector and supporter of Jewish causes.

[2] In his lifetime, Cummings made contributions to hospitals, universities, and the arts.

His endowment created the Nathan Cummings Arts Center at Stanford University and the Joanne and Nathan Cummings Art Center at Connecticut College in New London.

The foundation received most of his estate (then estimated at $200 million) upon his death in 1985.

The Nathan Cummings Foundation is one of eight institutional investors represented by the Shareholder Rights Projects, which worked to present shareholder declassification proposals in S&P 500 annual meetings.