If you can build, automate, or architect systems, this is your moment. In 48 hours, you’ll build agentic AI systems designed to tackle real legal-world challenges – and show how intelligent, multi-agent workflows can reshape how the industry works.
We’ll match selected applicants into teams of 4, mixing skills and backgrounds to form legaltech dream squads. Only 6 teams will be selected to battle it out live on the LegalTechTalk showfloor — solving real problems, prototyping bold ideas, and pitching to industry leaders. Judges and mentors will be on hand throughout to guide, challenge, and champion your progress.
Already have your crew? No problem — apply as a team (details below).
We can’t tell you just yet (where’s the fun in that?), but here’s what we can say:
Our goal is for you to solve high-stake legal challenges using agentic AI. Think intelligent agents, multi-agent collaboration, and real-world legal applications. The exact brief will be revealed during the official kick-off session.
Over 48 hours, six diverse teams of 4-5 participants, blending legal and tech expertise, brought their A-game to the LegalTechTalk showfloor. They tackled real-world legal challenges, prototyped cutting-edge solutions, and pitched innovative ideas to industry leaders. With the support of judges and mentors, the teams demonstrated how intelligent, multi-agent AI systems can reshape the legal industry.
The winning team created an intuitive, real-time assistant that brings clarity to complex contracts, freeing up legal teams to focus on what matters most.
Our 2025 winners showcased an In-House Legal Two-Way Living Intelligence Layer. Combining 20 years of legal expertise, 60 years of software development experience, and 15 years of AI innovation, the team created an AI-powered tool designed to simplify legal contract analysis. With features like conversational Q&A, intelligent escalation for lawyer review, plain-English summaries, and a secure web interface, this solution empowers legal professionals and client-facing teams to make smarter, faster decisions.
Participants stood out with the chance to fast-track interviews and explore potential pilot programmes with law firms and in-house teams.
Teams gained direct access to mentors from QuantumBlack – McKinsey’s AI and advanced analytics powerhouse – as they tackled real-world legal challenges, including a two-hour Quantum Black workshop.
Pitch your prototype to a panel of senior legal innovation leaders from some of the world’s top international firms.
Prototypes were pitched to a panel of senior legal innovation leaders from some of the world’s top international firms.
We’re looking for builders, problem-solvers, and tinkerers who love turning bold ideas into real, working systems. If any of the following sounds like you – you’re exactly who we want:
Technical Builders (meaning you can code/ know technical design):
Legal domain experts (meaning you understand the problems being solved)
📚 Want to prep early?
We recommend reading up on LangGraph Studio — it’ll help set the stage for what’s to come.
Our judges were looking for builders, problem-solvers, and tinkerers who love turning bold ideas into real, working systems. This included:
Technical Builders (meaning you can code/ know technical design):
Legal domain experts (meaning you understand the problems being solved)
Your solution will be evaluated on:
Innovation – Are you rethinking what’s possible?
Feasibility – Can it be realistically implemented?
Tech Execution – How well does it work?
Impact – Will it drive real change in the legal industry?
Innovation – Are you rethinking what’s possible?
Feasibility – Can it be realistically implemented?
Tech Execution – How well does it work?
Impact – Will it drive real change in the legal industry?
Application Deadline: 6 June
Teams Selected/ Notified: 13 June
Virtual Briefing: 25 June, led by QuantumBlack
Hackathon Kick-Off: 9:00 AM, 26 June
Hackathon Ends: 3:00 PM, 27 June
Winners Announced: 3:35 PM, 27 June
All participants are expected to attend in person for the hackathon.
Application Deadline: tba
Teams Selected/ Notified: tba
Virtual Briefing: tba
Hackathon Kick-Off: tba
Hackathon Ends: tba
Winners Announced: tba
Stay tuned as we build for our 2026 Hackathon
Group General Counsel
MARS WRIGLEY
Senior Director of Product
QUANTUMBLACK,
AI BY MCKINSEY
GenAI Lead
LINKLATERS
Global Head of Legal Tech & Innovation
BIRD & BIRD
Director of Product and Innovation & Partner
WEIGHTMANS
CEO
LEGORA
Chief Legal Officer & Partner
REVOLUT
Director
TD COWEN
Founder
TLW CONSULTING
Founder
LEGAL TECH COLLECTIVE
Senior Manager of AI Acceleration
CLEARY GOTTLIEB STEEN HAMILTON LLP
Director
TD COWEN
2025 applications are now closed. But if you're curious as to what it took to make the cut, applicants could...apply as an individual and be placed in a team of 4-5 with a mix of skills and backgrounds. If you already had a team, you could apply together by emailing your details to us.
Applications for 2026 are not yet open and the process/ criteria may vary - we advise you stay tuned 😊
In 2025, all participants required either strong legal knowledge or to be comfortable writing Python and have a working knowledge of containers. The hackathon is hands-on and technical, focused on building agentic AI systems to solve real-world legal challenges.
You would have been notified if you had been selected and later introduced to your team members.
If you were selected to compete, you would have been introduced to your team members ahead of the event via a dedicated Slack channel. This gives everyone a chance to connect, share ideas, and get aligned before the hackathon kicks off.
Only six teams qualified to compete on-site at LegalTechTalk 2025. These selected teams took part in the live 48-hour hackathon, building and pitching their solutions at the heart of the event.
Yes – each member of the six selected hackathon teams received a complimentary ticket to attend LegalTechTalk 2025.
Yes – judges checked in during the event, walking around to observe progress and get a sense of how each team was approaching the challenge.
Yes. In 2025, the hackathon station was accessible to participants from the morning of 26 June until the winner is announced at 4pm on 27 June. Teams were welcome to bring sleeping bags, blankets, and anything else needed to stay and work overnight.
All participants must attend on-site at LegalTechTalk in London. Virtual participation is not available.
The future of law is at LegalTechTalk – Europe’s Event for Legal Transformation.
The legal industry is undergoing a major transformation, driven by technological advances, changing demographics, and new business models. Lawyers who are able to adapt to these changes will be well-positioned for success in the future.
Future Events:
17 – 18 June 2026
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