About Us

We started Stack to solve a problem we faced personally: Which supplements should we take? With over 95,000 supplements on the market, and social feeds full of conflicting nutritional advice and dubious claims, the choices were confusing and overwhelming. Our goal is to make it easy for you to find your ideal stack of supplements, using science.

David Ronick

David Ronick, Founder

Co-founded and served as CEO of Minded (telehealth) and Stash (personal finance). Graduate of Harvard Business School and Brown University.

Gaspard de Dreuzy

Gaspard de Dreuzy, Founder

Co-founded Pager and Minded (telehealth), as well as Voyager, Trade.it and Kapitall (personal finance).

Cordell Ratzlaff

Cordell Ratzlaff, Design

Former User Experience Director at Google and Cisco, Creative Director at frog design, and leader of the Human Interface Group at Apple.

Marjorie Bates

Marjorie Bates, Nutrition

Registered Dietitian. Over 10 years experience at Massachusetts General Hospital and Plus One (Optum). Master’s in Applied Nutrition, Northeastern University.

Francisco Caballero

Francisco Caballero, Engineering

Co-founder of joinverve.co. Prev. Lead Software Engineer at Minded (telehealth), and 6x founder engineer and CTO.