Wordsmith AI has secured a £18.5m series A led by Index Ventures to scale its AI infrastructure that deploys legal agents across organisations to guide them to outcomes faster. With AI transforming the legal profession and giving rise to entirely new roles - like the ‘legal engineer’ - Wordsmith is leading the charge, embedding fleets of AI agents into corporations and training teams to wield them.
With a customer base that includes Trustpilot, Remote.com, Deliveroo, Multiverse, Docplanner, and hundreds of other in-house teams, Wordsmith is recording strong revenue growth across the UK and US, with the company set to open offices in both London and New York later this year.
Wordsmith’s technology is not only transforming how legal teams operate, but also helping to shape a new generation of legal professionals. As AI agents become embedded across corporate functions, the company is seeing the emergence of a new role within legal departments: the legal engineer. Traditionally handled by legal operations managers, this evolving function focuses on training, deploying, and supporting AI agents, requiring an entirely new skill set.
To support this shift, Wordsmith invests significantly in training and upskilling legal professionals, enabling them to harness the full potential of its platform. This marks a broader generational shift in the legal labour market, as professionals adapt to leverage AI and take on more strategic, high-impact roles.
Wordsmith AI was founded by lawyer turned engineer Ross McNairn in 2024. McNairn had previously helped to scale three tech unicorns, as Chief Product and Technology Officer at TravelPerk, VP of Product at letgo, and Head of Product at Skyscanner.
