LegalOn Raises $50M to Transform AI Contract Review with OpenAI Alliance

Imagine cutting contract review time from hours to minutes while eliminating hidden risks. That reality just took a quantum leap forward as LegalOn Technologies announced a $50 million Series E funding round led by Goldman Sachs Growth Equity, alongside a strategic collaboration with OpenAI. This powerhouse combination signals a seismic shift in legal technology, positioning LegalOn to redefine how businesses worldwide handle contracts.

The funding round, which included existing investor World Innovation Lab and Japanese institutions like Mizuho Bank, brings LegalOn’s total capital raised to $200 million since its 2017 founding. Crucially, the OpenAI partnership grants LegalOn access to cutting-edge AI models and enables joint engineering teams to develop advanced AI contract review agents—a move poised to accelerate innovation in legal workflows.

Fueling the AI Legal Revolution

The fresh capital injection will turbocharge LegalOn’s development of agentic AI products and global expansion efforts. As Daniel Lewis, Global CEO, explains: “Legal teams are buried in time-consuming work that slows them down. This funding helps us scale AI that eliminates tedious contracting, freeing people to lead strategically.” This vision is already resonating globally—LegalOn’s customer base surged 40% year-over-year to over 7,000 organizations, with U.S. and U.K. operations quadrupling in the past year.

In Japan, LegalOn dominates the market, serving 25% of public companies and 87% of the Fortune 500. Its recently expanded platform now handles end-to-end legal workflows, moving beyond contract review into matter management. The company’s core strength lies in its hybrid approach: pairing generative AI with proprietary legal playbooks crafted by in-house attorneys. This fusion enables its Review tool to slash contract processing time by up to 85% while maintaining rigorous compliance.

OpenAI Synergy and Strategic Expansion

The OpenAI collaboration marks a pivotal escalation in LegalOn’s capabilities. Co-founder Nozomu Tsunoda emphasized: “Working with OpenAI accelerates our mission to transform legal work with trustworthy AI.” Engineers from both companies will jointly develop next-generation legal agents, building on LegalOn’s existing innovations like AI Revise (launched April 2023) and its multilingual translation features.

Goldman Sachs’ reinvestment underscores confidence in LegalOn’s trajectory. Stephanie Hui, Global Co-head of Growth Equity at Goldman Sachs Alternatives, noted: “By combining advanced AI with deep legal expertise, LegalOn is reinventing contracting. They’re positioned to define the future of legal tech.” The firm previously backed LegalOn’s $101 million Series D in 2022.

The Human-AI Legal Partnership

Founded in Japan by former corporate attorneys frustrated by contract inefficiencies, LegalOn has always prioritized practical legal expertise alongside technology. Its AI doesn’t just automate—it learns from attorney-crafted standards and organizational preferences. Recent platform upgrades introduced capabilities like redline analysis of first-party paper and enterprise-grade knowledge management, evolving into a comprehensive legal operating system.

With $50 million in new funding and OpenAI’s technological firepower, LegalOn is poised to make AI contract review faster, smarter, and more accessible worldwide. Legal departments drowning in paperwork now have a lifeline—explore how AI can transform your contract workflows today.

Must Know

How does LegalOn’s AI improve contract review?
LegalOn combines OpenAI-powered models with attorney-built playbooks to identify risks and suggest revisions. Its system learns company-specific standards, reducing review time by up to 85% while improving accuracy. Recent upgrades enable redline analysis and multilingual support across 28 languages.

What makes this OpenAI partnership significant?
The collaboration gives LegalOn priority access to OpenAI’s latest models and enables shared engineering resources. This accelerates development of “legal AI agents” capable of complex tasks like negotiating terms or predicting regulatory impacts—moving beyond basic contract editing.

Who uses LegalOn’s technology?
Over 7,000 organizations globally, including 40 Fortune 500 companies. In Japan, it serves 25% of public companies. Industries span finance, healthcare, and tech, with quadrupled adoption in U.S./U.K. markets last year.

How will the $50M funding be used?
Primarily to scale AI agent development and global expansion. LegalOn will enhance its recently launched matter management suite and bolster sales/marketing in English-speaking markets.

Can AI replace lawyers in contract work?
LegalOn emphasizes augmentation—not replacement. Its tools handle repetitive tasks (clause identification, compliance checks), freeing lawyers for high-value negotiation and strategy. All AI suggestions are grounded in human legal expertise.

What’s next for legal AI technology?
Expect “agentic” systems that autonomously manage entire contract lifecycles—from drafting to renewal. LegalOn’s roadmap includes predictive analytics for risk forecasting and deeper CRM integrations.