What the business is
Freemium AI platform that generates lesson plans, slides, exercise lists, tests and auto-grading for K-12 teachers.
The bet
Teachers will pay for education-specific AI trained on national exam data instead of generic chatbots, because compressed prep time is their scarcest resource.
Starting capital
US$1.6M pre-seed (NXTP, 2023); R$40M (~US$6.7M) Series A led by Goodwater and Reach Capital, Nov 2024
How it started
Pedro Siciliano, an IME-trained engineer who tutored and taught free prep courses, spent three years at McKinsey and ran expansion and M&A at Descomplica before starting Teachy during a Stanford MBA. CTO Fabio Baldissera had founded three startups and a decade in AI.
What happened
Freemium growth took Teachy past 1 million registered teachers by late 2024 across Brazil, Mexico, Colombia and Indonesia, with 60+ AI tools from lesson plans to auto-grading. Goodwater and Reach led the R$40M Series A in November 2024 to fund school-wide B2B subscription packages.
What has to be true
Prep time is a teacher's scarcest resource and it is unpaid — a tool that credibly compresses 20 hours to 3 needs no change management to sell.
Generic chatbots hallucinate curriculum specifics; grounding generation in national exam banks made the output trustworthy enough for classrooms.
Freemium with a small weekly quota fit teachers' low individual willingness to pay while building a million-user top of funnel.
The founders' route mattered: a Descomplica expansion chief and Stanford MBA knew both the Brazilian school market and how to raise abroad.
What can be applied
Vertical AI beats general chatbots where content is nationally specific: exam repositories and curriculum grounding, not model quality, were the moat.
Aftermath
As of December 2024 Teachy was scaling: 1 million registered teachers, 300,000 monthly actives across Brazil, Spanish-speaking LatAm and Indonesia, on a freemium model converting at R$39.90 per month and pushing school-wide subscriptions. The R$40M Series A from Goodwater and Reach was earmarked for engineering hires and the B2B school-package motion. English-language trade press, including Education Week and EdTech Innovation Hub, picked up the round in 2025 while reporting the raise at US$7 million.
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