Skip to content

Our team of technology lawyers arguably comprises the largest group of open source software lawyers in any UK law firm. We counsel clients on open-licensing their code bases and AI models and the use and exploitation of free and open source software as well as working with them to manage the regulatory, security, IP and other risks inherent in managing open source software based systems and services.

70-90% of all software codebases now consist of open source software code, and the use, incorporation, modification and re-distribution of open source code - which can involve over 100,000 different open source components in a single codebase - presents unique legal and compliance challenges.

On the flipside, open source drives innovation and economic development to an astonishing degree. It’s no coincidence that so many of the major developments in AI over the past couple of years are based on and marketed as open technologies.

Lawyers at Bristows have been in the forefront of open source software law since its inception. Members of the open source team have been instrumental in drafting key industry licences like the CERN Open Hardware Licence and the Eclipse Public License 2.0, have advised on transactions such as the acquisition of Centos by Red Hat and act for some of the world’s leading Linux distributions. As well as running major M&A transactions involving open source, we are also trusted as open source subject-matter experts to co-counsel on global software transactions alongside companies’ in house teams and international advisers.

Members of the team advise cutting-edge startups, NGOs, established global tech giants, governments and supra-national organisations.

We’re thought leaders, combining deep industry knowledge in this sector with an impressive global programme of speaking engagements and keynotes at major conferences in Japan (Linux Foundation Open Compliance Summit). China (Open Atom Foundation and China Open Source Conference), Europe (FOSDEM, CHAOSS Con, FOSS Backstage, Linux Foundation, LLW, and OpenUK State of Open Conference) and North America (OSHWA Conference). We co-authored Open Source Law Policy and Practice (Oxford University Press) and our lawyers have published numerous open source works through publishers such as Springer, Cambridge University Press and Edinburgh University Press, as well as academic papers and research collaborations with teams at Queen Mary, University of London, University of Skövde, Sweden, and Oxford Brookes University.

Open source is all about reducing friction: it gives developers freedom to develop, and the business team the ability to get great products to market as swiftly and effectively as possible. Our job is to support that, by advising pragmatically on risk balanced with opportunity. Lawyers have a reputation for adding friction to business aims and aspirations. We’re acutely aware that this is in stark opposition to the undoubted benefits that open source brings, and we pride ourselves on creative solutions to minimise that friction.

Practical open source advice requires an understanding of law and regulation, and well as a deep understanding of underlying technology and development practices. For example, code which runs on the front-end can be non-compliant and remediation may be as simple as moving that same code to the server. Complex interactions of code through containerisation compound these issues. Team members work seamlessly with dev-ops engineers who complement our lawyers’ skills with deep, up-the-minute understanding of technologies like Kubernetes, vibe-coding and software defined infrastructure.

Open source is specifically addressed by EU legislation such as the AI Act and the Cyber Resilience Act, and we can help clients assess their obligations around the consumption and deployment of open source code in compliance with that legislation, including the production and distribution of software bills of materials (SBOMs).

M&A transactions in the tech sector will almost always involve open source, and we help clients navigate the unique risks and opportunities that open source code presents. We are familiar with the output of SCA tools such as Black Duck, Flexera, FOSSID or work with specialist open source consultants to generate reports and DD analyses which form a key part of the risk assessment, for use both in negotiating the core deal documents themselves, and facilitating the use of warranties indemnities deal insurance.

Pro-bono work from team members has included advising on open sourcing the content on the United Nations SURGHub project (a platform providing surgical and clinical expertise through textual, audio and video content to medics in developing countries and beyond). Members of the team have supported the United Nations Technology and Innovation Lab and its projects, and have co-authored an open source toolkit through WIPO aimed at promoting sustainable economic development through the deployment use of open source software.

Experience

What others say

“Bristows’ advice is always commercial. They help to distil complex legal issues into a business-friendly approach. They also always take a clear view and direction with all the legal complexity.”

Chambers FinTech Guide 2026

“The department stands out through its strong client focus, deep industry knowledge, and ability to deliver cutting-edge, practical advice.”

Chambers FinTech Guide 2026

“It is an excellent law firm with very good expertise in technology and FinTech.”

Chambers FinTech Guide 2026

“Their key strengths are their dedication and focus on delivering value to their clients in everything they undertake. The firm is clear, honest, practical, highly experienced and business-focused.”

Chambers and Partners UK 2026

“The team has excellent technical and industry knowledge which helps when negotiating a deal and drafting the appropriate agreements. They are very client-centric.”

Chambers and Partners UK 2026

“Bristows offers clear and practical advice, which is not limited purely to the legal issues presented but to the wider context of the transaction.”

Chambers and Partners UK 2026

“The Bristows team understand client needs and go the extra mile to deliver effective advice.”

Chambers and Partners UK 2026

“It has been really positive – they are incredibly experienced and knowledgeable in their fields, and very responsive and great to deal with. Their advice is pragmatic and digestible.”

Chambers and Partners UK 2026

“Bristows give the client solutions that can be be implemented. Advice is practical and experience-based, and informed by an understanding the limitations and risk for the client.”

Chambers and Partners UK 2026

“Excellent team with strength in depth in the life sciences and tech space. Strong market knowledge. Responsive and solution-focused.”

Legal 500 2026

“Bristows have always been exceptionally responsive to my queries around commercial contract matters, and really take responsibility for driving projects forward.”

Legal 500 2026

“Pragmatic, clear communicators who are responsive and thorough in their approach. I feel very confident in applying their advice.”

Legal 500 2026

“Exceptional understanding of the fast changing environment.”

Legal 500 2026

“Team is focused on supporting concrete challenges that client is facing, taking into account the big legal picture but also the subtleties of our business. We have worked with Bristows in different capacities and each time the level of service has been stellar.”

Legal 500 2026

“Bristows are and deserve to be a good name for IT and Telecoms. Their technical, legal, and commercial knowledge is as good as it gets, and their focus on client care is unparalleled. I have worked with them on a number of high-profile, complex but quite different cases in this sector.”

Legal 500 2026

“They are super-responsive and very flexible in general, and especially if we need support with sensitive or urgent matters.”

Legal 500 2026

“They are the best data protection team we deal with. They are extremely knowledgeable, very practical and really nice people to deal with.”

Legal 500 2026

“Bristows has a very personalised approach which feels very community-focused.”

Legal 500 2026

“The firm is very responsive and flexible in order to adapt to client priorities.”

Chambers & Partners 2025

“Bristows is our go-to firm for complex and sophisticated matters. It has first-rate capability across the board.”

Chambers & Partners 2025

“The lawyers have a deep knowledge of the technology market and can handle complex matters confidently and with an ability to communicate simply with a range of stakeholders.”

Chambers & Partners 2025

“Pragmatic approach to support the client needs.”

Legal 500 2025

“They don’t simply bill for the hours they’ve worked. Instead, they evaluate whether those hours were reasonable and whether we, as their client, have derived sufficient value from them. If they feel that the value delivered doesn’t align with the hours billed, they’re more than willing to adjust the fee to ensure our satisfaction.”

Legal 500 2025

“They possess an excellent understanding of our industry, and technology in particular, which sets them apart. While being a full-service law firm, they also embody the personalised attention and specialised expertise typically associated with boutique firms.”

Legal 500 2025

“Highly responsive, with deep expertise in AI and the multiple complex product areas that intersect in counselling AI products.”

Legal 500 2025

“Professional, always available, knowledgeable, and skilled.”

Legal 500 2025

“The team have both the resources and skills necessary to manage substantial litigation and arbitration, approaching such disputes with good humour, hard work, and creativity.”

Legal 500 2025

“Their IT and telecoms team is a market leader. Their market experience is exceptional across the board, everyone’s input is encouraged and valued such that clients feel involved, but looked after.”

Legal 500 2025

“They have a clear understanding of what our business wants to achieve and that underpins all their advice. They know when to involve the business stakeholders and are able to tailor their approach to that audience and suggest solutions that take key business drivers into account.”

Chambers and Partners 2024

“Bristows has a comprehensive IT practice with powerful resources for major commercial transactions and complex litigation. It advises many of the world’s leading technology companies, and also sophisticated blue-chip buyers of IT services. It is especially adept at providing counsel on the most current and cutting-edge issues in the technology space. Bristows houses experienced advisers on digital advertising and cloud computing matters.”

Chambers and Partners 2024

Recent rankings and awards

Information Technology and Outsourcing - Band 1

IT and Telecoms - Tier 1

FinTech Legal: Data Protection & Cyber Security - Band 1

Technology, Media and Telecoms - Tier 1

Key contacts

Andrew Katz's headshot
Andrew Katz
Consultant – IT & Open Source
Toby Crick
Partner – IT & digital projects
Vik Khurana's headshot
Vik Khurana
Partner – IT & digital projects
Adrian Sim
Joint Managing Partner – IT & digital projects