Yale and Brown University are among the latest colleges and universities to promise free tuition to students as part of the Say Yes to Education compact.
New York City-based Say Yes announced the addition of 10 institutions on Friday.
Say Yes offers locally funded tuition scholarships to Buffalo and Syracuse public school students who attend a public two- or four-year college.
Private institutions typically waive tuition for qualified Say Yes students whose family income is below $75,000 a year.
The other newly added colleges are: the Massachusetts Institute of Technology; Washington University in St. Louis; Williams College in Williamstown, Mass.; Smith College in Northampton, Mass.; Trinity College in Hartford, Conn.; Kenyon College in Gambier, Ohio; Muhlenberg College in Allentown, Pa. and Northeastern University in Boston.