David Ko

David Ko is an American business executive, entrepreneur and the Chief Executive Officer of Calm.com, Inc., a meditation and mental wellness app. Ko has held leadership positions at Yahoo!, Zynga, and Ripple Health Group, and is also a philanthropist and mentor in higher education.

Early life and education Ko earned a Bachelor of Science in Finance and International Business from the New York University Stern School of Business in 1993.

Career Ko began his career at Yahoo!, where he served as a senior executive for 10 years. He later joined Zynga, the social-gaming company, serving as Chief Operating Officer (COO).

In 2020, Ko co-founded Ripple Health Group, a healthcare-technology startup focused on patient–provider communication and access to care.

Publications In 2024, Ko published Recharge: Boosting Your Mental Battery One Conversation at a Time (Forbes Books).

Recognition Ko received the Haskins Award in 2022.