EmotionX

EmotionX Inc. is a Tokyo-based technology company founded in 2025 that is pioneering privacy-preserving cloud computing using Fully Homomorphic Encryption (FHE). The company is developing what it describes as the world's first Privacy Cloud Service, a computation platform that enables AI processing and data analysis on encrypted data without ever decrypting it — allowing organizations to collaborate on sensitive data while maintaining complete privacy guarantees. EmotionX's technology addresses a critical barrier to AI adoption in regulated industries: the inability to process private data on shared infrastructure. The company is also engaged in semiconductor research and development to accelerate FHE performance, and has secured investment from Kioxia (formerly Toshiba Memory) and other Japanese technology investors.