Jeff Greenstein

nonprofit jeff greenstein philanthrophy charity greenstein family foundation success giving philanthropy investing investment art soldiers children leadership business donation philanthropic charitable organization charitable giving teamwork team leadership development leaders leader ceo billionaire artist threading light guggenheim mark tobey venice biennale artwork venice peggy guggenheim artists art exhibition community education education and training yayoi kusama asian artists greenstein lab infinity nets fergus mccaffrey japanese art new york gallery gallery new york kazuo shiraga contemporary art wounded soldiers health war fellowship mental health healing marines philanthropist activism brothers for life human rights sold the movie sold trafficking human trafficking executive business model business intelligence business executive money aid