Thomas Siebel

American businessman

  • Philanthropy Magazine
  • Health & Mental Health

SOS: Stopping Opioid Slaughter

by Caitrin Nicol Keiper
  • Philanthropy Magazine
  • Giving to Higher Education

The Dinosaur Discoverer

by Ari N. Schulman
  • Research
  • Donor Intent

Turning Passion Into Action: Giving While Living

by The Atlantic Philanthropies