Japan isn’t just about sushi, anime, or bullet trains anymore. Its AI startup scene is booming—with world-class brains, bold bets, and some seriously cool tech. Whether you’re a founder looking for inspiration or an investor scanning for the next breakout hit, these 13 startups are leading the AI revolution in Japan in 2025.
1. Ubie
The doctor will AI you now.
Ubie’s smart symptom checker is already helping millions get faster, clearer answers about their health. It’s AI-powered medicine that feels personal—and actually works.
2. Elyza
Japan’s answer to ChatGPT—with a business brain.
Elyza is building Japanese large language models (LLMs) tailored for real-world use—from media to consulting. Smart, fast, and locally fluent.
3. Deepreneur
From Tokyo University’s AI brain trust to real-world innovation.
Born out of Japan’s most elite AI lab, Deepreneur is transforming generative AI into business tools that actually deliver.
4. LegalOn Technologies
The lawyer that never sleeps.
LegalOn’s contract analysis AI helps legal teams slash review time and reduce risk. It’s like having a super-powered legal assistant—minus the billable hours.
5. RevComm
AI that turns phone calls into sales insights.
RevComm’s MiiTel platform transcribes and analyzes calls so sales teams can close faster, smarter, and with data to back it up.
6. FastLabel
The invisible force behind good AI.
No labeled data, no AI. FastLabel automates one of the toughest parts of AI development: annotating the training data that makes it all work.
7. Autify
Click. Test. Deploy. Repeat.
Autify’s AI test automation platform makes software QA effortless—no code required. Loved by developers, trusted by global teams.
8. Soundraw
Your new music producer? It’s AI.
Need a soundtrack? Soundraw generates royalty-free music in seconds. Perfect for YouTubers, marketers, and creators on the go.
9. Signate
Where Japan’s next AI stars are born.
Through online competitions and training programs, Signate connects companies with top AI talent—and gives learners a place to shine.
10. TX Inc.
Smart factories start here.
TX brings AI to the production line, helping Japan’s manufacturers optimize operations, reduce waste, and future-proof their factories.
11. Aillis
Early detection, smarter diagnosis.
Aillis uses AI to analyze medical images for conditions like pneumonia or COVID-19. Doctors get help, patients get better care.
12. Stockmark
Cut through the noise, read what matters.
Stockmark’s NLP tools read news and reports so you don’t have to—powering smarter decisions for business, finance, and beyond.
13. Creator’s X
AI meets anime. Yes, really.
This startup is using generative AI to assist in the animation production process, helping studios work faster without losing their human touch.
Japan may not always shout the loudest in the global startup scene—but it’s quietly building some of the most powerful, precise, and thoughtful AI tech out there. These 13 companies prove that when innovation meets craftsmanship, the results aren’t just smart—they’re world-class.
So keep your eye on Japan’s AI scene. The next big thing might already be running… quietly, intelligently, and brilliantly.
