
Yale College ’29
Sofia Teifeld
Co-President, Yale Entrepreneurial SocietyYale Entrepreneurial Society
Leads YES and previously developed a magnetic-shielding concept for adjustable hydrocephalus shunts.Sofia Teifeld is a Yale College ’29 founding team member and COO of CHET, an investing-first Mastercard designed for students and young professionals. The card automatically invests 0.7% of every purchase into a user-selected ETF, with merchant-funded rewards of up to 10%. By combining everyday spending, credit building, and automatic investing, CHET makes it easier for young consumers to start building wealth without needing prior investing experience. She is also Co-Director of LAUNCH at the Yale Entrepreneurial Society.