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Embracing AI at CMS

How we combine technology, legal expertise, and responsible innovation to support our clients in an AI-driven world

24 Aug 2026 (First published: 12 Jan 2024) United Kingdom 4 min read

Artificial intelligence is transforming how businesses operate and how legal services are delivered. 

At CMS, we are embracing AI to enhance the quality, speed, and insight we provide to clients. Our approach combines leading technology, deep legal expertise and responsible governance, ensuring that innovation delivers real value. 

Whether supporting complex legal analysis, managing large datasets or enabling more efficient workflows, AI is already embedded across our services. 

"We believe the future of legal services is not human versus machine, but human + machine, working together to deliver better outcomes for clients."

Picture of John Craske
John Craske

Our approach to AI at CMS

Our strategy is simple:

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Adopt best-in-class tools

We invest in leading AI and legal technology solutions that help our lawyers work more efficiently, manage complex information, and deliver high-quality outcomes. We take a portfolio approach, continuously assessing and adopting new technologies as the market evolves.
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Build deep expertise

We combine technology with deep legal expertise. Our lawyers advise clients on AI-related legal, regulatory, and commercial issues, while staying at the forefront of developments in AI, digital transformation, and emerging technologies.
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Empower our people

We equip our people with the training, resources and support needed to use AI confidently and effectively in their day-to-day work. This helps ensure AI is applied in a practical, responsible, and client-focused way.

We take a portfolio approach, selecting the right tools for the right task, while continuously testing and evolving new solutions as the market develops. 

This ensures that we remain flexible, practical, and focused on outcomes for clients.

Responsible AI and governance

We recognise that AI creates significant opportunities to enhance efficiency and insight, while also introducing important risks that must be carefully managed and governed.
We prioritise confidentiality at every stage, ensuring client information is protected, handled securely and used in accordance with our data security and privacy requirements.
We maintain human oversight throughout the process, with all AI-assisted outputs reviewed and validated by our lawyers before being relied upon or shared with clients.
We are transparent about our use of AI, providing clarity on when and how AI tools are used and ensuring accountability for the work we deliver.
We operate within a robust governance framework, with the use of AI guided by firm-wide policies, compliance requirements and risk management processes.
The responsible use of AI is fundamental to maintaining client trust, managing risk effectively and delivering high-quality legal advice.

Our AI toolkit

Generative AI assistants

AI assistants help our lawyers draft, summarise, and analyse information more efficiently, allowing them to spend more time on strategic legal advice and client service. 

Machine learning tools

Our machine learning tools support large-scale contract review, due diligence, and document analysis, helping teams identify key information quickly and accurately. 

Litigation analytics platforms

Advanced analytics tools provide data-driven insights into claims activity, legal trends and outcomes, supporting informed decision-making and case strategy.

Translation and research tools

AI-powered translation and research tools help our teams access, analyse, and work with information more efficiently across jurisdictions and languages.

Harvey: AI at scale in practice

Harvey is one of the key AI platforms used across CMS. Designed specifically for legal professionals, it helps our lawyers review documents, analyse information, conduct research, and draft content more efficiently.

Following a successful pilot, Harvey has been rolled out across the CMS international organisation and is available to all CMS lawyers. With more than 6,500 users, CMS is the largest law firm deployment of Harvey globally. By combining AI with legal expertise and human oversight, we are helping our people work more efficiently while maintaining the quality and judgement our clients expect.

Hear from John Craske, Chief AI & Innovation Officer, Bert Vries, Director of Innovation, Knowledge & Technology at CMS Netherlands, and Laura Fessey, Head of Legal Tech, in the video below on how Harvey is supporting legal innovation across CMS.

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Supporting clients on their AI journey

Beyond using AI internally, we help clients  at every stage of their AI journey – from exploring and implementing new technologies to navigating regulatory, commercial and governance challenges. Drawing on expertise across multiple practice areas, we help organisations adopt AI responsibly, manage risk effectively, and unlock value from innovation. 

Our expertise includes:

We advise clients across sectors, from AI developers and technology providers to organisations integrating AI into their products, services and day-to-day operations. Whether deploying AI at scale, responding to new regulatory requirements or establishing governance frameworks, we provide practical, commercially focused advice to help clients move forward with confidence. 

The future of AI at CMS

AI will continue to reshape the legal sector, and we are actively  investing in the capabilities, technologies and expertise needed to stay ahead of this change. 

Our focus includes: 

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  • Expanding AI capabilities across practice areas – Embedding AI into legal and business services workflows to enhance efficiency, insight and client service. 
  • Developing tailored solutions for clients – Creating client-facing AI tools and solutions designed to address specific business and sector challenges. 
  • Enhancing productivity through AI-enabled workflows – Using AI to support our people in working more efficiently while maintaining quality, oversight and professional judgement. 
  • Exploring next-generation technologies  – Assessing developments such as AI agents, intelligent automation and new generative AI capabilities. 
  • Collaborating with leading technology providers – Working closely with technology partners to evaluate emerging tools and bring the latest innovations into practice. 
  • Investing in research and experimentation – Continuously testing emerging technologies and exploring practical applications across the firm. 

We see AI not as a one-off transformation, but as an ongoing evolution. By combining legal expertise, technology and innovation, we aim to help shape the future of legal services while delivering tangible benefits for our clients. 

10+
AI tools deployed firmwide
6,500+
Harvey users across CMS
14
practice areas actively using AI in client work
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