CMS today (10 October) announced the enterprise wide roll out of Harvey, in the culmination of a trial that began in March 2024 and has expanded – driven by strategy and demand – since then. This new chapter will see Harvey provided to 7,000 CMS lawyers and staff across all 21 CMS member firms in more than 50 countries.
Speaking to Legal IT Insider, John Craske, chief knowledge and innovation officer at CMS UK said that CMS had started using Harvey a year and a half ago, when the market was “much younger.” The firm began with a small initial trial and had licenses for around 300 users, expanding that to 3,000 lawyers about a year ago. “What interesting is that the adoption and value have been such that the number of licenses continued to grow,” said Craske.
As to whether the growth was driven by strategy or demand, Craske said: “Those two have happily come together. We see ourselves as a future facing firm and we use technology for the benefits of our clients and the firm, and so this is very much part of that.” He added: “We have a portfolio of tools but in terms of a general purpose legal AI tool Harvey is good for us and it made sense to go enterprise wide. We see it as a great way of enabling our lawyers and getting them involved in using AI tools.” Craske added that Harvey has provided valuable support to the firm, which has helped with adoption.
This means that CMS has achieved the largest law firm rollout of Harvey in EMEA by seats to date.
CMS says that its initial analysis shows that 93% of users have reported productivity gains equating up to 117.9 hours saved per lawyer per year. The efficiency gains of using Harvey allow the firm to reduce write-offs, help reduce the load on lawyers, offer the most competitive prices to clients and maintain profitability.
Stephen Millar, managing partner at CMS UK, said in a statement: “Expanding Harvey across our global organisation is about scaling the best of CMS—our judgement, sector insight and cross-border capability—with the power of AI. Our lawyers are already seeing meaningful time savings, which we’re reinvesting into higher‑value work and sharper outcomes for clients. This is a practical, client‑led step that strengthens quality, consistency and value across every matter we handle.”
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