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Knowunity GmbH is an educational platform used by more than 30 million students. In Europe, the company built one of the biggest creator programs in the world, amassing over 1 billion views across more than 25 countries. Now expanding into the United States, Knowunity has launched a $50M-backed company there.

Parrot is a YC-backed (W25) education technology company in San Francisco building the "Tik-Tok for language learning" with real native short-form videos, interactive subtitles, and AI-generated activities that teach the way people learned their first language. The startup follows an immersion-first approach grounded in second-language acquisition research and comprehensible input, aiming to make native content and short-form video the global standard for online language learning. Parrot is also building a leading AI learning engine that adapts dynamically to each learner’s needs by blending human teaching insights with AI-powered personalization. Launched in February 2025, Parrot already has thousands of active users with strong engagement and rapid growth, plans to expand beyond Spanish to multiple languages, and is hiring its first Founding Engineer to help scale to millions of learners and creators.

Aira is an AI platform designed for procedural specialties that serves as the payer intelligence layer for medical device companies and surgical practices. The company automates critical back-office workflows while handling the full payer compliance lifecycle, including benefits verification, medical necessity determinations, prior authorization, and appeals management. By functioning as the intelligence layer powering market access teams, Aira helps healthcare providers and device manufacturers navigate the complexity of reimbursement processes to increase patient access to needed procedures. The platform addresses a key pain point in healthcare operations by streamlining the administrative burden that often delays care and complicates market entry for medical innovations.