The winning team created an intuitive, real-time assistant that brings clarity to complex contracts, freeing up in-house legal teams to focus on what matters most.
With conversational Q&A, plain-English summaries, secure access and smart escalation for lawyer review, it helps legal and client-facing teams make faster, more confident decisions.
The hackathon didn’t just produce a winning prototype – it sparked a shift in direction. Since the event, Adeu – members of the 2025 winning team – have gone on to reshape their business plan, using what they learned in those 48 hours to guide their next product.
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).
Selected participants will be brought together in cross-disciplinary teams, combining legal, technical, and creative minds to tackle real-world challenges.
Across the Hackathon, teams will collaborate live at LegalTechTalk – building, testing, and pitching bold ideas in front of industry leaders. Expect fast thinking, hands-on problem solving, and serious momentum.
Judges and mentors will be on hand throughout to guide, challenge, and champion the ideas that stand
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.
Over 48 hours, teams will blend legal and tech expertise, to tackled real-world legal challenges, create prototyped cutting-edge solutions, and pitched innovative ideas to industry leaders. With the support of judges and mentors, teams will demonstrate how intelligent, multi-agent AI systems can truly reshape the legal industry.
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.
We’re looking for builders, problem-solvers, and curious minds who love turning bold ideas into real, working solutions.
If you enjoy collaborating, experimenting, and tackling complex challenges, you’ll feel right at home.
The LegalTechTalk Hackathon brings together people with a mix of skills and perspectives – including:
Technical builders who enjoy designing, coding, and prototyping
Legal and domain experts who understand the problems worth solving
Creative thinkers who like shaping ideas into something usable and impactful
You don’t need to tick every box. Strong teams are built on different strengths.
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)
Stand 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.
Collaborate across disciplines in diverse teams that challenge assumptions and strengthen ideas.
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.
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
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. 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.
The format for 2026 may evolve - details will be confirmed closer to launch.
Yes – each member of the selected hackathon teams will receive a complimentary ticket to attend LegalTechTalk 2026.
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.
For 2026, timings and format will be confirmed closer to launch.
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.
Upcoming Event:
17 – 18 June 2026
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