Brilliant was founded in 2012 by Sue Khim and Silas Hundt with the mission to make STEM education more accessible and engaging through interactive problem-solving. The company launched at the Launch Festival in March 2013, where CEO Sue Khim presented the company's vision for active, hands-on learning.
The company's approach focused on identifying and nurturing gifted students in mathematics and science. Brilliant gained recognition for discovering talented students like Farrell Wu from the Philippines, Dylan Toh of Singapore, and Phoebe Cai from the United States.
In 2013, CEO Sue Khim was listed among the Forbes 30 under 30 for the Education category, recognizing her innovative work in educational technology. The company began contributing math and science puzzles to major publications including The New York Times, The Guardian, and FiveThirtyEight.
Brilliant was cited by The Atlantic as a catalyst of the "math revolution" - a surge in the number of American teens excelling at mathematics. The company's approach to identifying and developing mathematical talent contributed to broader discussions about STEM education in the United States.
The company expanded its content library and platform capabilities throughout the 2010s, developing a comprehensive curriculum covering mathematics, computer science, and science subjects. Brilliant's interactive problem-solving approach differentiated it from traditional educational platforms.
In December 2022, Brilliant acquired Hellosaurus, a software and entertainment company that distributes interactive programming for children from various children's creators like The Wiggles and Kids Diana. CEO Sue Khim stated that the acquisition would help Brilliant accelerate its mission toward active learning and expand its offerings for younger learners.
The company has continued to grow its user base and expand its educational content, maintaining its focus on interactive, problem-based learning approaches that emphasize understanding over memorization.