Edinburgh-based startup Wordsmith AI has secured a $25 million (£18.5m~) Series A, led by venture capital firm Index Ventures.

The Series A funding, which also comes from the likes of Scottish Enterprise, will be used to scale the startup’s AI infrastructure which 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 helping to lead the charge by both embedding fleets of AI agents into corporations and training teams to wield them.

“For the first time, AI infrastructure can be embedded across companies, with fleets of agents that you can train to support every corporate function – cutting deal cycles, answering queries, and processing complex workflows,” explained Ross McNairn, CEO and co-founder of Wordsmith.

“Our Legal Enablement Platform is like air traffic control for GCs and in-house teams, helping them guide teams to the right decisions faster.”

“We’re witnessing the birth of an entirely new role in legal: the legal engineer,” McNairn added. “These are the people training, deploying, and managing fleets of AI agents. We’re helping to re-skill an entire generation to do it.”

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.

With a customer base that includes the likes of 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.

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Hannah Seal, who serves as partner at Index Ventures, commented on the funding news: “AI is revolutionising the legal profession, and Wordsmith is leading that charge.

“They’re not just building a co-pilot, they’re creating the foundational infrastructure for how entire organisations interact with legal. This is about reshaping enterprise operations, not just supporting legal teams.

“We’re excited to back Ross and the Wordsmith team as they define a new category at the intersection of law, technology and AI.”

Deputy first minister Kate Forbes also added: “Private investment is an essential building block of a strong and growing economy – and fundamental to ensuring businesses can grow and succeed.

“Scottish companies bucked the UK trend last year by attracting more than £700 million of investment – up by a fifth on 2023 – and it is fantastic news that Wordsmith AI, a Techscaler member, has secured its $25 million Series A funding round in such a short space of time.

“There can, must and will be many more success stories like this. From the Techscaler programme and our wider pipeline of support for entrepreneurs, to continuing to position Scotland as an investment destination, the Scottish Government will continue to help our start-up companies grow and prosper.”

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