Luminance and Legal AI
Luminance, a legal tech startup, raised $75 million in a funding round. It uses AI to manage contracts and has over 700 clients worldwide.

Luminance is a legal tech startup gaining attention due to its recent advancements in artificial intelligence. It recently completed a Series C funding round, raising $75 million. This funding is significant as it represents one of the largest capital increases for a legal AI company in the UK and Europe. In the last 12 months, Luminance has raised over $115 million, bringing the total to $165 million. Founded by Cambridge academics Adam Guthrie and Dr. Graham Sills, the startup initially received support from the late Dr. Mike Lynch.
Luminance's platform uses an AI system called "Panel of Judges". This system automates and enhances contract management, allowing users to generate, negotiate, and analyze contracts even after they have been executed. The main product, Lumi Go, enables clients to send draft agreements to a counterparty while the AI negotiates automatically on their behalf. Unlike other startups that use generic AI models, Luminance employs a legal pre-trained transformer (LPT) trained on over 150 million verified legal documents. This specialization makes the platform more defensible compared to those based on general models.
Eleanor Lightbody, CEO of Luminance, emphasized the importance of a mixed approach in building AI models. Each model has different strengths, and by combining them, more accurate and transparent responses can be achieved. Currently, Luminance has over 700 clients in more than 70 countries, including well-known names like AMD, Hitachi, and Lamborghini. The startup has tripled its workforce in North America and opened new offices in San Francisco, Dallas, and Toronto. The involvement of investors like Forestay Capital and Schroders Capital in the Series C funding round highlights the growing interest in legal AI solutions.