LegalOn Technologies just raised $50 million to push its AI contract review tools further. The Tokyo-based startup’s software is already used by 7,000 organizations across Japan, the U.S., and the U.K., including 25% of Japan’s public companies.
Its flagship tool, Review, slashes contract review times by up to 85%. It does this by spotting risks and suggesting edits based on lawyer-built playbooks tailored to each customer’s legal standards.
The new funding round is led by Goldman Sachs’ growth equity arm. Existing backers World Innovation Lab (WiL), plus new investors including law firm Mori Hamada & Matsumoto, Mizuho Bank, and Shoko Chukin Bank, also chipped in. 
LegalOn plans to beef up AI agent offerings and expand go-to-market efforts in the U.S. and U.K., where its business grew fourfold in the past year. The company didn’t disclose its valuation.
Founded in 2017 by former corporate lawyers Nozomu Tsunoda and Masataka Ogasawara, LegalOn also launched Matter Management last week—a tool that tracks contract requests, assigns ownership, and connects legal teams with other departments.
LegalOn holds a non-equity tech partnership with OpenAI, giving it early access to ChatGPT’s latest models.
Daniel Lewis, LegalOn’s Global CEO, explained the company’s edge:
“Our approach ensures contract reviews are aligned with real legal standards, making the output more accurate, consistent, and practical for legal teams. In addition, we have more than 50 attorney-built playbooks, seamless integration into existing workflows, and our solution works out-of-the-box on day one.”
Lewis pushed back on the idea AI will replace lawyers anytime soon:
“The state of the technology isn’t there yet, and replacing lawyers isn’t even our vision. Lawyers are still in the driver’s seat. The things AI can’t do perfectly today are, by definition, the things only people can do. And the lawyers who lean into that responsibility — to oversee, to edit, to exercise judgment — are the ones seeing the most extraordinary leverage from AI right now.”
LegalOn’s total capital raised now tops $200 million. Investors include SoftBank Vision Fund, HSG (formerly Sequoia Capital China), JAFCO, and MUFG Bank.
