Classtime is a Zurich- and US-based education technology company building a web-based platform for formative and summative assessments. Teachers use it to create and grade quizzes, run collaborative challenges, and watch student understanding update in real time across any device. Founded in 2016, it serves hundreds of thousands of teachers and learners in more than 60 countries, with a free library of 30,000+ standards-aligned questions and a focus on grounding its design in learning science.
Valentin Ruest is the co-founder and US co-CEO of Classtime, a Zurich-born edtech company building a formative and summative assessment platform used by educators and learners in more than 90 countries. A University of St. Gallen and Harvard-trained economist who once ran mortgages at a Swiss fintech, he traded banking for classrooms, splitting his life between Santa Barbara and Zurich while teaching personal finance in public schools and arguing that software should help teachers decide, not decide for them.