1.

Andrew W. Mellon Foundation

2.

Bill & Melinda Gates Foundation

3.

Bloomberg Philanthropies 2010

4.

Conrad N. Hilton Foundation

5.

Ford Foundation 1936-01-01

6.

Gordon and Betty Moore Foundation

7.

Lilly Endowment

8.

McMaster University 1887

9.

Open Society Foundations

10.

Rockefeller Foundation

11.

Stavros Niarchos Foundation

12.

The Leona M. and Harry B. Helmsley Charitable Trust

13.

Wellcome Trust 1936