The Rockefeller family originally made its fortune from oil. Rockefeller describes his role in the fund's move towards sustainable investing as being "an annoying gadfly".
"I have been able to work with others on the board and the investment committee to ask tough questions, and to think about how we can maximise the foundation's total impact," he said in a statement.
Philanthropy New Zealand provides help and leadership for people and organisations interested in philanthropy. Its members include private philanthropists, family, community and corporate foundations, and iwi and community trusts.
"Justin comes from a long and illustrious line of philanthropists, but like many next-generation donors he is putting his own twist on what it means to be a philanthropist in the 21st century," Philanthropy NZ chief executive Liz Gibbs said in a statement.