problem-solving
(3)
Brilliant.org
Brilliant.org is an interactive STEM learning platform that teaches math, science, data, and computer science through hands-on problems instead of passive video. Founded in 2012 by Sue Khim, the San Francisco-based company has grown to roughly 10 million learners and operates on a freemium subscription model with 90+ guided courses.
Sue Khim
Sue Khim is the CEO and co-founder of Brilliant.org, an interactive STEM learning platform serving over 10 million users in 150+ countries. Born in South Korea and raised in Chicago, she studied mathematics at the University of Chicago before leaving to found Alltuition, a student financial aid startup, in 2009. That team pivoted in 2012 to build Brilliant, which has since raised over $90 million in venture funding and become one of the most widely used platforms for self-paced math and science education. Named to Forbes 30 Under 30 in Education and recognized by Apple as an AAPI leader in tech, Khim is focused on replacing rote memorization with genuine conceptual understanding at global scale.
Lumos Labs (Lumosity)
Lumos Labs is the San Francisco company behind Lumosity, the brain-training app that turned cognitive exercises into a daily habit for more than 100 million people. Founded in 2005 by Kunal Sarkar, Michael Scanlon, and David Drescher, Lumosity packages neuropsychology-inspired tasks - memory, attention, processing speed, problem solving, flexibility - into short, gamified workouts. Its database of player performance, the Human Cognition Project, has fueled collaborations with researchers at Stanford, Harvard, Cambridge, and beyond.