Jim and Marilyn Simons

Jim and Marilyn Simons
  • Joined the Giving Pledge: 07/11/2010 - Read the Letter
  • Estimated Net Worth: $15.5 Billion
  • Forbes Rank: #50
  • Industry: Investment management
  • Born: Marilyn Simons - 1951
    Jim Simons - 1938
  • Residence: New York, NY

Jim Simons is the founder of Renaissance Technologies, a private investment firm, and is chairman of the Simons Foundation.  Marilyn Simons is president of the Simons Foundation.

Related Foundations

Charitable Board Service

  • Both
    Nick Simons Foundation
    Paul Simons Foundation
    Simons Foundation

    Jim Simons
    Brookhaven National Laboratory
    Institut des Hautes Études Scientifiques
    Institute for Advanced Study
    Massachusetts Institute of Technology
    Mathematical Sciences Research Institute
    New York Genome Center
    Rockefeller University
    Stony Brook Foundation

    Marilyn Simons
    Cold Spring Harbor Lab
    East Harlem Tutorial Program
    The LearningSpring School

We are fortunate to be in this position, and we find our philanthropic work to be both challenging and deeply satisfying.

Jim and Marilyn Simons

Giving Interests

Autism research; Life Sciences; Mathematics; Physical Sciences; Science, research