Caltech In

Join fellow alumni, friends, and leaders from across disciplines for an evening at the historic Royal Institution—home to discoveries that have shaped our understanding of the world.

Gather with fellow Techers in one of Paris’s historic literary venues.

Spend a summer evening with fellow Caltech alumni and friends at one of New York City’s most iconic rooftops.

Join fellow Techers for a day of exploration, history, and science in Los Alamos, NM—the once-secret city at the heart of the Manhattan Project.

Caltech President Thomas F. Rosenbaum, Science editor-in-chief Holden Thorp (PhD ’89), and author-performer Sandra Tsing Loh (BS ’83, DAA ’01) will explore how universities and alumni can rebuild public trust in science.

Caltech in Chicago will bring together alumni, postdocs, and friends for an afternoon of connection and conversation with President Thomas F. Rosenbaum at the Griffin Museum of Science + Industry on November 23, 2025.

Join fellow Techers in San Francisco during JP Morgan Healthcare Conference for a free reception featuring light bites, drinks, an alumni gift, and opportunities to meet up with alumni across healthcare and related fields, with registration closing January 8, 2026.

Join a live Zoom discussion examining which AI tools are driving real impact across science, engineering, and business and which are better left aside.