Duolingo

Duolingo is an American educational technology company founded in 2011 by Luis von Ahn and Severin Hacker. Based in Pittsburgh, Pennsylvania, Duolingo offers a gamified language learning app designed to develop vocabulary, grammar, and listening skills through quick, bite-sized lessons. The platform provides courses in various languages, as well as music and mathematics. Duolingo also offers the Duolingo English Test for language certification. The company serves a global market and is publicly traded on Nasdaq under the ticker DUOL.

Duolingo has achieved significant milestones, including becoming a component of the S&P 400 and generating $531 million in revenue in 2023. The platform is renowned for its research-backed teaching methods and engaging content, which have proven effective in teaching reading, writing, listening, and speaking skills. CEO Luis von Ahn continues to lead the company, which has made substantial contributions to online education by making learning accessible and enjoyable for millions worldwide.