About Our Founders: Judy and Jeff Greenstein


Jeff Greenstein is the co-founder of Greenstein Family Foundation, driving meaningful change in the foundation’s core areas of giving. After co-founding and running Quellos Group, a large alternative investment management business, Jeff now focuses his energies on a broad array of investments, building businesses and philanthropic activities. Jeff is the CEO of the private investment firm YIS Capital and co-founder of the Greenstein Lab.



Judy Greenstein is co-founder of the Greenstein Family Foundation, where she plays pivotal roles in the strategic development and execution of local and international initiatives. Much of Judy’s philanthropic activities and role within the foundation leverage her professional career as an award-winning producer for CBS and later as founder and head of Disney’s Kids On-Line division.