Lead support for High Line Art comes from Amanda and Don Mullen. Major support for High Line Art is provided by Shelley Fox Aarons and Philip E. Aarons, The Brown Foundation, Inc. of Houston, and the Charina Endowment Fund. High Line Art is supported, in part, with public funds from the New York State Council on the Arts with the support of Governor Andrew Cuomo and the New York State Legislature, and from the New York City Department of Cultural Affairs in partnership with the New York City Council, under the leadership of Speaker Corey Johnson.
Major support of the High Line Plinth comes from a dedicated group of contemporary art leaders and philanthropists. The High Line Plinth Committee supports the realization and success of major art commissions on the Plinth. The Committee includes Shelley Fox Aarons, Fairfax Dorn, Andrew Hall, Hermine Riegerl Heller, J. Tomilson Hill, Dorothy Lichtenstein, Donald R. Mullen, Jr., Mario J. Palumbo, Jr, and Anonymous.