companies

Luminance

Legal-grade AI platform for reviewing, negotiating, and managing contracts, used by law firms and in-house teams.

Luminance builds AI trained specifically on legal documents rather than general-purpose text, which it uses to review contracts for risk, missing clauses, and deviations from a firm or company's standard positions. Founded in Cambridge in 2015 by mathematicians Adam Guthrie and Graham Sills, the company was seed-funded by the late Mike Lynch and built its early reputation among UK law firms doing due diligence review before expanding into contract negotiation and post-signature contract management. Eleanor Lightbody has led the company as CEO since its Series A. Luminance closed a $75 million Series C in early 2025 led by Point72 Private Investments, bringing total funding to roughly $165 million. It now counts a quarter of the world's largest law firms among its customers alongside corporate legal departments at companies like AMD and DHL, operating in more than 70 countries. Its closest competitors include Harvey and Spellbook on the law-firm side and Ironclad or Icertis on the enterprise contract-management side, though Luminance's pitch leans on legal-specific model training rather than a general LLM wrapper.

Founded

2015

Headquarters

Cambridge, United Kingdom

Sector

applications