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Claudio Sassaki

Claudio Sassaki is the Co-Founder and Chief Executive Officer of Geekie, a start-up in Brazil that is pioneering ground-breaking learning systems. It offers a platform with many features, including self-assessment, diagnostic evaluation focused on school learning management, as well as adaptive learning technology with personalised content. Claudio has worked extensively with students, schools and districts to design and implement personalised learning strategies. In 2016, Geekie impacted more than 10 million students from 5,000 schools across the country. He is an Endeavour Entrepreneur, Schwab Foundation Social Innovation Fellow, Wired Magazine Innovation Fellow, Trip Transformador, and Folha de São Paulo Social Entrepreneur. He is also a guest writer and speaker for a series of vehicles and events, such as TEDx and Harvard's Global Education Conference.

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Hybrid Social Enterprise
Education, Skills and Learning
Areas of Impact
Latin America, Brazil


In Brazil, Geekie's goal is to enable every child to have the high-quality education the founders – and every parent in the country – want for their own children. The technology platform has been used by more than 10 million students; in 99% of the cities in Brazil, there is someone that has studied with Geekie.

The company started with three products. Geekie Teste offers learning diagnoses, identifying gaps, and reports that support educators and school administrators in making more informed decisions based on concrete data. Geekie Lab uses data and algorithms to identify the student's gaps and then recommends lessons and activities to better fix them. Geekie Games helps millions of students prepare for the national college entrance exam (ENEM) through an app where students begins their journey by choosing their major, the university they wish to attend and the amount of time they will dedicate to studying. By knowing their goals and the score received in the assessment, the app generates a personalized study plan with access to thousands of video lessons and activities. The solution also uses the IRT model, which allows a fairly accurate estimate of how the candidate will perform on the test.

Geekie is now investing to boost results by looking at an entire learning system, aiming to personalize a full learning curriculum with teacher training, homework and parent dashboards for a very exciting holistic experience. Named Geekie One, this new solution lets each school adopt a comprehensive, flexible, digital curriculum that matches each student's needs and pace, rather than attempting to have everyone keep up with the teacher, as has been done in classrooms for decades.


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